Senior Javascript Ui Engineer React Or Angular 160k 180k jobs in San Francisco – Browse 6,702 openings on RoboApply Jobs
Senior Javascript Ui Engineer React Or Angular 160k 180k jobs in San Francisco
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Senior JavaScript UI Engineer (React or Angular) - $160K-$180K
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Experience Level
Senior
Qualifications
Qualifications:* A minimum of 10 years of professional experience in JavaScript development.* Expertise in MVC frameworks like AngularJS and ReactJS.* Demonstrated experience in creating complex, user-facing applications.* A keen interest in exploring and adopting the latest development tools and practices.
About the job
Join Us as a Senior JavaScript UI Engineer (React or Angular) - $160K-$180K . HIGHLIGHTS: * Be a key player in crafting a new, frontend-centric, feature-rich Software as a Service (SaaS) product. * Work on a distinctive, powerful suite of applications designed for web design and development. * Join a well-funded company (Series A funding of $15 million) that’s making waves in the industry. * Become part of a growing team with esteemed Fortune 500 clients including GE, Visa, and Marriott. * Located in SOMA, San Francisco, 94107, with convenient access to BART and Caltrain, plus a flexible work schedule. . THE ROLE: * As our most senior frontend developer, you will report directly to the CTO. * Utilize cutting-edge technologies: React, Redux, Apollo, ES6/ESNext, Cypress for browser testing, GraphQL for API interaction, and Flow for type safety. * Develop complex frontend features while enhancing performance and speed using Chrome Dev Tools. . IDEAL CANDIDATE PROFILE: * 10+ years of JavaScript experience required. * Proficiency in MVC frameworks such as AngularJS and ReactJS. * Proven track record in building complex public-facing frontends. * A passion for learning the latest tools and methodologies.
About Walter Bacon LLC
Walter Bacon LLC is a forward-thinking company focused on delivering innovative software solutions. With substantial backing and a strong vision, we are dedicated to creating powerful tools for web design and development that empower our clients to succeed.
Full-time|$160K/yr - $180K/yr|On-site|San Francisco
Join Us as a Senior JavaScript UI Engineer (React or Angular) - $160K-$180K.HIGHLIGHTS:* Be a key player in crafting a new, frontend-centric, feature-rich Software as a Service (SaaS) product.* Work on a distinctive, powerful suite of applications designed for web design and development.* Join a well-funded company (Series A funding of $15 million) that’s making waves in the industry.* Become part of a growing team with esteemed Fortune 500 clients including GE, Visa, and Marriott.* Located in SOMA, San Francisco, 94107, with convenient access to BART and Caltrain, plus a flexible work schedule..THE ROLE:* As our most senior frontend developer, you will report directly to the CTO.* Utilize cutting-edge technologies: React, Redux, Apollo, ES6/ESNext, Cypress for browser testing, GraphQL for API interaction, and Flow for type safety.* Develop complex frontend features while enhancing performance and speed using Chrome Dev Tools..IDEAL CANDIDATE PROFILE:* 10+ years of JavaScript experience required.* Proficiency in MVC frameworks such as AngularJS and ReactJS.* Proven track record in building complex public-facing frontends.* A passion for learning the latest tools and methodologies.
Full-time|$220K/yr - $240K/yr|On-site|San Francisco, California, United States
Who We ArePostman is the premier API platform utilized by over 45 million developers and 500,000 organizations globally, including 98% of the Fortune 500. Our mission is to empower developers and professionals worldwide to create an API-first environment by simplifying every stage of the API lifecycle and enhancing collaboration, thereby enabling users to build superior APIs more swiftly.Headquartered in San Francisco, we also maintain offices in Boston, New York, Austin, Tokyo, London, and Bangalore—our city of origin. As a privately held company, we have secured investments from leading firms such as Battery Ventures, BOND, Coatue, CRV, Insight Partners, and Nexus Venture Partners. Discover more at postman.com or engage with us on X at @getpostman.P.S: We highly recommend exploring The "API-First World" graphic novel to gain insight into our broader vision at Postman.About the TeamThe Client Platform organization is dedicated to paving the way for building, testing, and deploying Postman’s web and desktop applications. We are responsible for frameworks, design systems, SDKs, build tools, and shared infrastructure that product engineers rely on daily. The UI Platform group is focused on developing reliable, accessible, and high-performance UI foundations that are used across Postman.The OpportunityAs a Senior Software Engineer on the Client Platform team, you will play a key role in shaping the front-end infrastructure that Postman depends on. This encompasses the design system and reusable components that enhance both web and desktop experiences. Your contributions will significantly impact how hundreds of engineers build, fostering consistency, performance, and an improved developer experience.This position involves hands-on work. You will create components, establish UI architecture, and collaborate with engineers and designers to transform concepts into scalable UI systems. In this role, you will advance the UX layer, enabling teams to deliver high-quality features without the need to reinvent core patterns.What You’ll DoEnhance front-end architecture, including component libraries, layout patterns, theming, and global UI behaviors.Develop specialized UI components as needed (e.g., editors, grids, structured data components) with a focus on performance and usability.Ensure components meet accessibility standards, keyboard interaction patterns, and internationalization/localization requirements.Assist product teams in embracing UI Platform components and patterns, offering guidance and identifying opportunities to simplify or expand the platform.
Full-time|$120K/yr - $227.5K/yr|Hybrid|San Francisco
About Us:At Scribd Inc. (pronounced “scribbed”), we are dedicated to igniting human curiosity. Join our innovative team as we craft a universe of stories and knowledge, democratizing the exchange of ideas and empowering collective expertise through our diverse products: Everand, Scribd, Slideshare, and Fable.This job posting represents an open and approved position within our organization, reflecting our commitment to growth and excellence.We cultivate a workplace culture where authenticity and boldness thrive, where we engage in robust discussions and embrace unexpected challenges, and where every employee is empowered to take initiative in prioritizing customer satisfaction.Our flexible work policy, Scribd Flex, allows employees to customize their work environment in collaboration with their managers, promoting a balance between individual flexibility and community connections. We emphasize the importance of intentional in-person interactions to foster collaboration, culture, and connection. Therefore, occasional in-person attendance is required for all Scribd Inc. employees, regardless of their location.What do we seek in our new team members? We value “GRIT”—the combination of passion and perseverance towards long-term goals. At Scribd Inc., we believe in the transformative potential of this mindset and encourage our employees to embody a GRIT-ty approach in their work. In practical terms, GRIT stands for setting and achieving strong Goals, delivering tangible Results, contributing Innovative ideas, and positively influencing the broader Team through collaboration and a positive attitude.About the Role and TeamEnhance the core experience for over 10M daily readers. Join the team responsible for Scribd's primary reading platform and significantly influence how millions of users engage with our extensive collection of over 300,000 documents.Innovate at the crossroads of product and AI. Collaborate closely with Product, Design, and AI/ML teams to rapidly develop and implement experiments that boost engagement and comprehension on the reading interface.Develop new creation experiences from inception to launch. Leverage your skills to conceptualize and build innovative features that enhance user creativity and interaction.
Full-time|$120K/yr - $227.5K/yr|On-site|San Francisco
About Our Company:At Scribd Inc. (pronounced “scribbed”), we are driven by a mission to ignite human curiosity. As part of our innovative team, you will help shape a world filled with stories and knowledge, democratizing the exchange of ideas and empowering collective expertise through our flagship products: Everand, Scribd, Slideshare, and Fable.This job posting reflects a currently open position within our organization.We cultivate a culture where our employees can be authentic and courageous; where discussions are encouraged, and commitments are made as we embrace the unexpected; and where every team member is empowered to take initiative while keeping customer satisfaction at the forefront.In terms of workplace structure, we value a balance between personal flexibility and community engagement. Through our flexible work benefit, Scribd Flex, employees can collaborate with their managers to determine a working style that aligns with their individual needs. A vital aspect of Scribd Flex is ensuring intentional in-person interactions to foster collaboration, culture, and connection. Therefore, occasional in-person attendance is required for all Scribd employees, regardless of their location.What do we seek in our new team members? We prioritize hiring individuals who embody “GRIT” – a blend of passion and perseverance towards achieving long-term goals. At Scribd Inc., we recognize the transformative potential this mindset unlocks, and we encourage all our employees to adopt a GRIT-driven approach in their work. In practical terms, GRIT is also an acronym representing the standards we uphold: we seek candidates who demonstrate the ability to set and accomplish Goals, achieve Results, contribute Innovative ideas, and positively impact the broader Team through collaboration and attitude.About the Discovery Applications TeamThe Discovery Applications Team is at the forefront of Scribd’s Machine Learning and Discovery Engineering Division. This dedicated team is responsible for crafting customer-facing web experiences that enhance our cutting-edge search, recommendations, and generative AI features. As a full-stack team, we own the complete discovery experience across Scribd and Everand, transforming machine learning capabilities into intuitive, user-friendly features.By joining this team, you will play a pivotal role in delivering user value from our groundbreaking machine learning innovations, creating significant impacts through your contributions.
About Us:At LangChain, we are on a mission to make intelligent agents commonplace. Our platform serves as the backbone for agent engineering in real-world applications, enabling developers to transform their prototypes into production-ready AI agents that organizations can depend on. Initially recognized for our widely adopted open-source tools, we have evolved to also provide a comprehensive platform for building, evaluating, deploying, and managing agents at scale.Today, our solutions including LangChain, LangGraph, LangSmith, and Agent Builder are utilized by teams delivering genuine AI products across both startups and large enterprises. Millions of developers rely on LangChain to empower AI teams at prominent companies such as Replit, Clay, Coinbase, Workday, Lyft, Cloudflare, Harvey, Rippling, Vanta, and 35% of the Fortune 500.With $125 million raised in Series B funding from leading investors including IVP, Sequoia, Benchmark, CapitalG, and Sapphire Ventures, we are in an exciting phase of product development, experiencing rapid growth where every team member can significantly influence our projects and collaborative work culture. At LangChain, your contributions can reshape how technology manifests in the real world.About the Role:We are seeking a dedicated core maintainer to join the LangChain team. This individual will play a crucial role in enhancing and maintaining the LangChain JavaScript package. Preference will be given to candidates who can work in person in San Francisco.Enhancing the core abstractions and runtime of the langchain and langgraph packagesImproving and expanding documentationResponding to user inquiries and resolving issues effectivelyUtilizing langchain to develop example applicationsSuccess Factors:Minimum of 3 years of experience in software engineering or applied machine learningStrong background in Software EngineeringExceptional written and verbal communication skills, capable of conveying technical concepts to both technical and non-technical audiencesAbility to thrive in a fast-paced environment and view unstructured settings as opportunities to define impactful workOwnership mindset; proficient at managing tasks independently and effectively
Full-time|Remote|San Francisco, California, United States
Join our innovative team at crewAI as a Senior Fullstack Engineer. In this pivotal role, you will help propel the crewAI+ platform forward, a robust Ruby on Rails application that integrates Python services. Your expertise in both backend and frontend development will be essential for ensuring seamless functionality and high performance. We are looking for a proactive individual with a solid background in Ruby, Python, and React who thrives in a collaborative, dynamic environment.
About OmniOmni is an innovative business intelligence and embedded analytics platform designed to empower organizations in exploring, understanding, and acting on their data effectively.With our headquarters in San Francisco and operational hubs across EMEA and APAC, we are proud to be supported by top-tier investors such as ICONIQ Growth, Theory Ventures, First Round Capital, Redpoint Ventures, Google Ventures, Snowflake Ventures, and Databricks Ventures.About the RoleAs a Software Engineer at Omni, you will engage with our entire technology stack to tackle diverse customer challenges. Collaborating with a highly skilled team, you will have the freedom to prioritize tasks and resolve issues independently or collectively.Your primary focus will be on developing user experiences, APIs, and data processing functionalities within our TypeScript application, leveraging the React and Remix frameworks.Our engineering culture prioritizes rapid, iterative shipping while upholding rigorous standards for performance and quality. Recent projects have included:Comprehensive spreadsheets integrated within our BI platform.A Managed Cloud Platform (MCP) server for Blobby, our AI chatbot that crafts queries within the boundaries of a semantic data model.CSV upload functionalities.APIs for various applications.Data writing capabilities to Google Sheets.QualificationsExceptional technical and communication skills.3-10+ years of experience in building production-level software with proficiency in TypeScript or JavaScript.Strategic mindset with the ability to align business and product objectives with development speed and engineering excellence.Proficiency in analytical tools such as SQL, Looker, Tableau, Mode, Amplitude, or Google Analytics.Preferred Qualifications:Experience in developing data products.Familiarity with data warehousing solutions like Snowflake, BigQuery, or Redshift.Knowledge of data use cases and the analytics ecosystem.Our Technology Stack:TypeScriptReact with RemixKotlin / JavaAWSWhy Join UsBe part of a dynamic and innovative team.Opportunity for professional growth and advancement.Contribute to exciting projects that make a real impact.
Full-time|$3.1K/yr - $3.1K/yr|On-site|San Francisco
About Air AppsAt Air Apps, we embrace bold thinking and rapid innovation. Founded by a family in 2018 in Lisbon, Portugal, our mission is to revolutionize planning with the world’s first AI-powered Personal & Entrepreneurial Resource Planner (PRP). With over 100 million downloads globally, we have expanded our presence to San Francisco while remaining self-funded and committed to pushing the limits of AI-driven solutions that genuinely enhance lives.We invite you to become a part of our journey to transform resource management and empower individuals across the globe.The RoleAs a React Engineer, your primary focus will be on crafting responsive and accessible user interfaces for our web applications. You will work collaboratively with designers, product managers, and backend engineers to convert wireframes and prototypes into beautiful, stable, and scalable front-end experiences that engage our users.This job posting serves to build our talent pool as we prepare for the official launch. We will reach out to you as soon as the position is officially posted.
Join Point as a Senior Mobile Engineer and be part of a pioneering team dedicated to creating a modern and aspirational banking experience. Our mission is to enhance the everyday debit card by integrating rewarding benefits and features that elevate financial transactions.To learn more about our dynamic team and vibrant culture, please explore here.
Join our dynamic team at Midstream as a Frontend Software Engineer. In this role, you will leverage your technical expertise to design and implement innovative web applications that enhance user experience. You will collaborate with cross-functional teams to deliver high-quality software solutions that meet our clients' needs.
Are you passionate about creating engaging user interfaces and enhancing user experiences? Join our innovative team at Sesame as a Web UI/UX Engineer. In this dynamic role, you will collaborate with designers and developers to build intuitive web applications that delight our users. Your expertise in user-centered design principles and your ability to translate concepts into wireframes and prototypes will be key to your success.
Full-time|$230K/yr - $260K/yr|On-site|San Francisco, California
About VSCO VSCO (pronounced vis–co) is an innovative platform empowering photographers with essential tools, a vibrant community, and exposure to enhance their creative and professional journeys. We foster a genuine and inspiring environment for photographers at every level, ensuring a space for creative opportunities, inspiration, and connections. Our mission is to support photographers in their endeavors, enabling them to connect with fellow creatives and businesses through a comprehensive suite of creative tools available on mobile and desktop, across our global community. We seek individuals who are motivated and take initiative to elevate our company mission. At VSCO, employees have the chance to make a significant impact, believing that collaboration leads to stronger outcomes than working in isolation. Our core values are foundational to our team culture and influence our hiring practices. Discover more about what it’s like to work at VSCO on our Careers Page. About The Role If you are passionate about React Native development and eager to be part of a dynamic team of creators, we invite you to apply for this role and assist us in empowering creators globally. At VSCO, you will collaborate with talented individuals who share your enthusiasm for innovation and creativity. We are constructing a comprehensive ecosystem of tools for photographers, enhancing our existing offerings while also creating new tools and services. This pivotal role will help define and advance our vision, shaping how our users create, connect, and earn. Join us in influencing the future of mobile, desktop, and web technologies, making a meaningful impact on the global creative community. As a Staff Engineer, you are fundamentally a technologist. You'll engage directly with the team in coding, solving complex problems, and staying updated with the latest technologies. However, your influence extends beyond individual contributions. You will serve as a technical leader, guiding the team through intricate challenges, advocating for best practices, and anticipating future developments to keep the team ahead of the curve. You will consider scalability, long-term maintainability, and future features even while the team is focused on current deliverables. You will mentor engineers, elevate quality standards, and enable the success of others. The Day to Day Lead the development of high-quality, scalable React Native applications while promoting rigorous testing, robust CI practices, and high standards throughout the codebase. Actively engage in coding and problem-solving alongside the team. Mentor junior engineers and foster a collaborative learning environment. Stay abreast of industry trends and best practices.
At ClickUp, we are not merely creating software; we are pioneering the future of work! In an era inundated by work sprawl, we envisioned a superior solution. This vision led to the development of the first truly integrated AI workspace, merging tasks, documents, chat, calendar, and enterprise search, all enhanced by context-driven AI. This empowers millions of teams to shatter silos, reclaim their time, and achieve unprecedented productivity levels. At ClickUp, you will have the chance to learn, utilize, and innovate with AI in ways that will not only influence our product but also the future of work itself. Join our bold, innovative team that is redefining the realm of possibilities! Role OverviewWe are in search of a Principal Frontend Engineer to spearhead the long-term technical vision for frontend engineering at ClickUp. In this pivotal role, you will lead architectural strategy across major product surfaces, tackle organization-wide frontend challenges, and shape how teams build and deliver at scale. You will collaborate closely with engineering, product, design, backend, and integrations leadership to ensure ClickUp’s frontend systems remain fast, reliable, and adaptable as the business expands.This hands-on technical leadership position is ideal for a candidate who can navigate both strategic and implementation levels, especially in a fast-paced, high-growth environment.What You’ll DoDefine and drive the frontend architecture strategy across product areas and platform investments.Lead the design of scalable, high-performance systems using Angular 2+ and React to support rapid product development.Address complex cross-team technical challenges related to performance, state management, scalability, and developer productivity.Collaborate with backend and integrations teams to shape end-to-end architecture for significant features and systems.Elevate standards for quality, testing, maintainability, and engineering rigor throughout the frontend organization.Provide technical leadership on high-impact initiatives and help teams navigate ambiguous or challenging problems.Guide teams toward practical decisions that balance speed with long-term product quality.Mentor senior and staff engineers, and contribute to shaping the frontend engineering culture and standards.Influence the roadmap and organizational decisions through strong technical judgment and effective product partnerships.
Position OverviewBobyard is rapidly expanding, presenting numerous opportunities to innovate and enhance our infrastructure to meet increasing demand.As a Senior React Developer, you will enjoy significant autonomy in designing, developing, and refining products. In our fast-paced startup environment, you will become the foremost authority on the solutions you create. We seek exceptional engineers who not only have a clear vision for the product but are also capable of diving deep into coding to deliver outstanding results.Key ResponsibilitiesDevelop and sustain the entire product stack (React, Django, PostgreSQL).Architect and scale backend APIs and data models.Manage frontend architecture and optimize UI performance.Collaborate closely with product management, computer vision, and design teams to deliver integrated features.Deploy and maintain infrastructure across AWS, GCP, and Heroku.Identify and resolve production issues while enhancing system reliability.Quickly prototype, iterate, and refine features based on customer feedback.Desired QualitiesSelf-driven and adept at navigating a loosely structured environment.Strong product intuition — understanding the why behind features, not just the how.Solid understanding of web architecture and system design fundamentals.Ability to transition seamlessly between frontend and backend tasks.Quick learner, resourceful, and proactive in addressing unclear problems.Strong work ethic — this role demands dedication typical of startup environments.Organized and capable of managing multiple concurrent projects.This is a full-time, in-person position in San Francisco. Your ability to learn quickly and demonstrate commitment will be critical. If you can show us that you can deliver the products our customers need at the pace and quality the market demands, we want to hear from you.
Full-time|$212K/yr - $265K/yr|On-site|United States
Founded in 2007, Airbnb started with two hosts welcoming three guests into their San Francisco home and has since expanded to over 5 million hosts, providing unique stays and experiences for more than 2 billion guests worldwide. Our platform fosters authentic connections between guests and local communities around the globe.Join Our Community: The UI Foundation team at Airbnb boasts a rich history, overseeing our design system, accessibility, motion design, and the essential tooling that links our design processes to product development. Within this framework, the UI Tooling team acts as the crucial bridge between our Design Language System and the daily workflows of hundreds of designers and engineers throughout the organization.UI Tooling is responsible for the platforms, integrations, and tools that facilitate collaboration and efficiency among designers and engineers. This encompasses design tooling, UI engineering workflows, and increasingly, AI-enhanced processes. As we accelerate AI enablement, this team plays a pivotal role in some of Airbnb's most strategic infrastructure initiatives.Your Impact: As the Engineering Manager for UI Tooling, you will provide essential leadership to ensure the team operates with consistency, clarity, and a long-term strategic vision. You will manage and nurture a team of engineers, oversee a multi-year roadmap across UI Tooling's core focus areas, and collaborate cross-functionally with Design, Product, and AI teams to advance the next generation of design and engineering support at Airbnb.This role is critical in facilitating UI Foundation's broader goals. With your leadership, the team will gain the focus and stability required to swiftly implement initiatives that will influence every product team at Airbnb.You will be responsible for strategy and execution across five key domains:AI Utilization of the Design System: Integrating Figma Code Connections, UI Development Skills and Agents, Prototyping Skills and Agents, and Design Skills and Agents.Core UI Development Workflow & Tooling: Component development and documentation tools, design-to-code platforms, and migration tools.Core Design Workflow & Tooling: Design systems, asset management, and collaboration tools.AI-Powered Workflows: Enhancing existing tools with AI capabilities.Cross-Functional Collaboration: Working closely with Design and Product teams to ensure seamless integration of tools and processes.
Netic is revolutionizing the essential services sector by functioning as the AI revenue engine that underpins the American economy.Backed by $43 million in funding from esteemed investors such as Founders Fund, Greylock, Hanabi, and Dylan Field, who spearheaded our Series B, we've empowered our clients to secure hundreds of thousands of jobs across various service industries in North America. Today, numerous companies operate entirely on an AI-first model using Netic.Join our dynamic team of relentless innovators hailing from Scale, Databricks, HRT, Meta, MIT, Stanford, and Harvard, as we bring cutting-edge AI solutions to the physical economy, tackling intricate challenges with complex data, and delivering immediate, tangible impacts.As a UI/UX Engineer, you will design user interfaces that make advanced AI technologies feel intuitive and accessible. This pivotal role ensures that our sophisticated automation capabilities are user-friendly for non-technical experts, effectively bridging the gap between advanced technology and everyday business operations.
Join our innovative team as a Frontend Engineer for the UI Platform at Cloudflare. In this pivotal role, you will be responsible for developing and enhancing our user interface components, ensuring a seamless experience for our clients. You will have the opportunity to collaborate with talented engineers and designers to shape the future of our platform.We value creativity and problem-solving skills, and we’re looking for passionate individuals who thrive in a dynamic environment. Your work will directly impact how our users interact with our services and contribute to the overall success of the company.
At Drivetrain, we are dedicated to revolutionizing the way businesses approach financial planning and decision-making. Our innovative platform empowers companies to scale efficiently and meet their goals with confidence.Founded in 2021 by former Google engineers, Drivetrain operates as a remote-first organization with its headquarters in the San Francisco Bay Area. We're a rapidly growing startup backed by prominent venture capital firms, positioning ourselves for continued success. Remote-friendly: We gather top talent from around the world, providing them with autonomy and trust to excel in their roles. Open & transparent: We believe that access to information drives creativity and productivity, enabling our team to produce their best work. Idea-friendly: Our culture fosters innovation, allowing everyone to propose ideas and contribute to meaningful change. We celebrate the best ideas. Customer-centric: Our product-led growth strategy prioritizes learning from our customers, collaborating closely to build exceptional software.
About the RoleAs a Visual Design Engineer at Sim, you will take the lead in crafting and advancing our innovative platform for building AI agents. This is where developers come to design, connect, and deploy their AI creations. Your expertise will guide the entire process—from the architectural framework to the refined user interactions—defining how thousands of developers engage with our tools. Your role will integrate UI/UX design with engineering principles, influencing the core interface and real-time systems that power our product.Often likened to 'Figma for AI agents', you will elevate our platform further, enhancing its capabilities, user enjoyment, and efficiency as developers’ workflows become more intricate. Collaborating closely with engineering, design, and product teams, you will ensure a smooth agent-building experience from conception to launch.This is a pivotal position where you will establish benchmarks for visual design, interaction methodologies, and UI responsiveness. In our agile team environment, your influence will extend to all user interactions, allowing for the rapid deployment of impactful features.What You'll DoLead the design and development of Sim's dynamic visual canvas—the real-time, drag-and-drop editor that is central to our platform.Architect and implement user-friendly UI systems tailored for complex agent-building workflows.Design seamless interactions for developers to create, test, debug, and deploy agents within the product.Maintain a fast, beautiful, and resilient user experience as workflows expand in complexity.Ensure visual correspondence with execution: what users perceive should match the operational output.Establish standards for front-end code, component architecture, design systems, and user ergonomics.Collaborate across the stack in our Next.js monorepo, delivering updates to production on a daily basis.Define and enhance UX/UI patterns, focusing on developer satisfaction.What We’re Looking ForA design-oriented engineer with robust experience in React and TypeScript.A strong intuition for UI/UX—your focus is on both aesthetics and functionality.Experience in developing intricate, interactive frontend systems such as canvas editors and collaborative tools.Demonstrated ability to create polished, user-centric developer tools.Comprehensive knowledge of front-end performance, animation, and responsiveness.A proactive mindset with a strong sense of ownership—helping shape the roadmap as well as executing it.
About UsAt thesirius, we're powered by the backing of a16z Speedrun, dedicated to providing innovative solutions that drive growth for top consumer brands. Our advanced technology is relied upon by industry leaders such as Higgsfield and Promova. As we scale our operations, we are on the lookout for talented professionals who are passionate about making impactful contributions to consumer technology advancements. Join our vibrant team where initiative, ambition, and a commitment to excellence in problem-solving are highly valued.Position OverviewIn the role of Senior Frontend Engineer, you will be instrumental in the design, development, and maintenance of the user-facing elements of our core products. Your key responsibilities will include:Crafting and implementing robust, scalable, and user-centric interfaces that accommodate new features and shifting business requirements.Collaborating seamlessly with backend engineers, product managers, and design teams to deliver high-quality, integrated solutions.Providing technical guidance through best practices, mentoring fellow team members, and engaging actively in code reviews.Championing the adoption of contemporary frontend technologies, frameworks, and methodologies to guarantee product quality and maintainability.Identifying and addressing intricate technical challenges pertaining to user experience, performance, and security.Fostering a culture of continuous improvement and operational excellence within the engineering team.QualificationsA minimum of 5 years of professional experience in frontend development for high-traffic applications.Expertise in JavaScript/TypeScript and familiarity with modern frontend frameworks.Proven experience in integrating frontend applications with backend APIs and third-party services.Strong understanding of UI/UX principles, performance optimization, and frontend architecture.Excellent analytical skills with a track record of independently driving projects to successful completion.Full-time availability and a strong passion for contributing to a high-growth, ambitious environment.How to ApplyWe invite you to submit a brief introduction along with your resume for consideration.
Full-time|$160K/yr - $180K/yr|On-site|San Francisco
Join Us as a Senior JavaScript UI Engineer (React or Angular) - $160K-$180K.HIGHLIGHTS:* Be a key player in crafting a new, frontend-centric, feature-rich Software as a Service (SaaS) product.* Work on a distinctive, powerful suite of applications designed for web design and development.* Join a well-funded company (Series A funding of $15 million) that’s making waves in the industry.* Become part of a growing team with esteemed Fortune 500 clients including GE, Visa, and Marriott.* Located in SOMA, San Francisco, 94107, with convenient access to BART and Caltrain, plus a flexible work schedule..THE ROLE:* As our most senior frontend developer, you will report directly to the CTO.* Utilize cutting-edge technologies: React, Redux, Apollo, ES6/ESNext, Cypress for browser testing, GraphQL for API interaction, and Flow for type safety.* Develop complex frontend features while enhancing performance and speed using Chrome Dev Tools..IDEAL CANDIDATE PROFILE:* 10+ years of JavaScript experience required.* Proficiency in MVC frameworks such as AngularJS and ReactJS.* Proven track record in building complex public-facing frontends.* A passion for learning the latest tools and methodologies.
Full-time|$220K/yr - $240K/yr|On-site|San Francisco, California, United States
Who We ArePostman is the premier API platform utilized by over 45 million developers and 500,000 organizations globally, including 98% of the Fortune 500. Our mission is to empower developers and professionals worldwide to create an API-first environment by simplifying every stage of the API lifecycle and enhancing collaboration, thereby enabling users to build superior APIs more swiftly.Headquartered in San Francisco, we also maintain offices in Boston, New York, Austin, Tokyo, London, and Bangalore—our city of origin. As a privately held company, we have secured investments from leading firms such as Battery Ventures, BOND, Coatue, CRV, Insight Partners, and Nexus Venture Partners. Discover more at postman.com or engage with us on X at @getpostman.P.S: We highly recommend exploring The "API-First World" graphic novel to gain insight into our broader vision at Postman.About the TeamThe Client Platform organization is dedicated to paving the way for building, testing, and deploying Postman’s web and desktop applications. We are responsible for frameworks, design systems, SDKs, build tools, and shared infrastructure that product engineers rely on daily. The UI Platform group is focused on developing reliable, accessible, and high-performance UI foundations that are used across Postman.The OpportunityAs a Senior Software Engineer on the Client Platform team, you will play a key role in shaping the front-end infrastructure that Postman depends on. This encompasses the design system and reusable components that enhance both web and desktop experiences. Your contributions will significantly impact how hundreds of engineers build, fostering consistency, performance, and an improved developer experience.This position involves hands-on work. You will create components, establish UI architecture, and collaborate with engineers and designers to transform concepts into scalable UI systems. In this role, you will advance the UX layer, enabling teams to deliver high-quality features without the need to reinvent core patterns.What You’ll DoEnhance front-end architecture, including component libraries, layout patterns, theming, and global UI behaviors.Develop specialized UI components as needed (e.g., editors, grids, structured data components) with a focus on performance and usability.Ensure components meet accessibility standards, keyboard interaction patterns, and internationalization/localization requirements.Assist product teams in embracing UI Platform components and patterns, offering guidance and identifying opportunities to simplify or expand the platform.
Full-time|$120K/yr - $227.5K/yr|Hybrid|San Francisco
About Us:At Scribd Inc. (pronounced “scribbed”), we are dedicated to igniting human curiosity. Join our innovative team as we craft a universe of stories and knowledge, democratizing the exchange of ideas and empowering collective expertise through our diverse products: Everand, Scribd, Slideshare, and Fable.This job posting represents an open and approved position within our organization, reflecting our commitment to growth and excellence.We cultivate a workplace culture where authenticity and boldness thrive, where we engage in robust discussions and embrace unexpected challenges, and where every employee is empowered to take initiative in prioritizing customer satisfaction.Our flexible work policy, Scribd Flex, allows employees to customize their work environment in collaboration with their managers, promoting a balance between individual flexibility and community connections. We emphasize the importance of intentional in-person interactions to foster collaboration, culture, and connection. Therefore, occasional in-person attendance is required for all Scribd Inc. employees, regardless of their location.What do we seek in our new team members? We value “GRIT”—the combination of passion and perseverance towards long-term goals. At Scribd Inc., we believe in the transformative potential of this mindset and encourage our employees to embody a GRIT-ty approach in their work. In practical terms, GRIT stands for setting and achieving strong Goals, delivering tangible Results, contributing Innovative ideas, and positively influencing the broader Team through collaboration and a positive attitude.About the Role and TeamEnhance the core experience for over 10M daily readers. Join the team responsible for Scribd's primary reading platform and significantly influence how millions of users engage with our extensive collection of over 300,000 documents.Innovate at the crossroads of product and AI. Collaborate closely with Product, Design, and AI/ML teams to rapidly develop and implement experiments that boost engagement and comprehension on the reading interface.Develop new creation experiences from inception to launch. Leverage your skills to conceptualize and build innovative features that enhance user creativity and interaction.
Full-time|$120K/yr - $227.5K/yr|On-site|San Francisco
About Our Company:At Scribd Inc. (pronounced “scribbed”), we are driven by a mission to ignite human curiosity. As part of our innovative team, you will help shape a world filled with stories and knowledge, democratizing the exchange of ideas and empowering collective expertise through our flagship products: Everand, Scribd, Slideshare, and Fable.This job posting reflects a currently open position within our organization.We cultivate a culture where our employees can be authentic and courageous; where discussions are encouraged, and commitments are made as we embrace the unexpected; and where every team member is empowered to take initiative while keeping customer satisfaction at the forefront.In terms of workplace structure, we value a balance between personal flexibility and community engagement. Through our flexible work benefit, Scribd Flex, employees can collaborate with their managers to determine a working style that aligns with their individual needs. A vital aspect of Scribd Flex is ensuring intentional in-person interactions to foster collaboration, culture, and connection. Therefore, occasional in-person attendance is required for all Scribd employees, regardless of their location.What do we seek in our new team members? We prioritize hiring individuals who embody “GRIT” – a blend of passion and perseverance towards achieving long-term goals. At Scribd Inc., we recognize the transformative potential this mindset unlocks, and we encourage all our employees to adopt a GRIT-driven approach in their work. In practical terms, GRIT is also an acronym representing the standards we uphold: we seek candidates who demonstrate the ability to set and accomplish Goals, achieve Results, contribute Innovative ideas, and positively impact the broader Team through collaboration and attitude.About the Discovery Applications TeamThe Discovery Applications Team is at the forefront of Scribd’s Machine Learning and Discovery Engineering Division. This dedicated team is responsible for crafting customer-facing web experiences that enhance our cutting-edge search, recommendations, and generative AI features. As a full-stack team, we own the complete discovery experience across Scribd and Everand, transforming machine learning capabilities into intuitive, user-friendly features.By joining this team, you will play a pivotal role in delivering user value from our groundbreaking machine learning innovations, creating significant impacts through your contributions.
About Us:At LangChain, we are on a mission to make intelligent agents commonplace. Our platform serves as the backbone for agent engineering in real-world applications, enabling developers to transform their prototypes into production-ready AI agents that organizations can depend on. Initially recognized for our widely adopted open-source tools, we have evolved to also provide a comprehensive platform for building, evaluating, deploying, and managing agents at scale.Today, our solutions including LangChain, LangGraph, LangSmith, and Agent Builder are utilized by teams delivering genuine AI products across both startups and large enterprises. Millions of developers rely on LangChain to empower AI teams at prominent companies such as Replit, Clay, Coinbase, Workday, Lyft, Cloudflare, Harvey, Rippling, Vanta, and 35% of the Fortune 500.With $125 million raised in Series B funding from leading investors including IVP, Sequoia, Benchmark, CapitalG, and Sapphire Ventures, we are in an exciting phase of product development, experiencing rapid growth where every team member can significantly influence our projects and collaborative work culture. At LangChain, your contributions can reshape how technology manifests in the real world.About the Role:We are seeking a dedicated core maintainer to join the LangChain team. This individual will play a crucial role in enhancing and maintaining the LangChain JavaScript package. Preference will be given to candidates who can work in person in San Francisco.Enhancing the core abstractions and runtime of the langchain and langgraph packagesImproving and expanding documentationResponding to user inquiries and resolving issues effectivelyUtilizing langchain to develop example applicationsSuccess Factors:Minimum of 3 years of experience in software engineering or applied machine learningStrong background in Software EngineeringExceptional written and verbal communication skills, capable of conveying technical concepts to both technical and non-technical audiencesAbility to thrive in a fast-paced environment and view unstructured settings as opportunities to define impactful workOwnership mindset; proficient at managing tasks independently and effectively
Full-time|Remote|San Francisco, California, United States
Join our innovative team at crewAI as a Senior Fullstack Engineer. In this pivotal role, you will help propel the crewAI+ platform forward, a robust Ruby on Rails application that integrates Python services. Your expertise in both backend and frontend development will be essential for ensuring seamless functionality and high performance. We are looking for a proactive individual with a solid background in Ruby, Python, and React who thrives in a collaborative, dynamic environment.
About OmniOmni is an innovative business intelligence and embedded analytics platform designed to empower organizations in exploring, understanding, and acting on their data effectively.With our headquarters in San Francisco and operational hubs across EMEA and APAC, we are proud to be supported by top-tier investors such as ICONIQ Growth, Theory Ventures, First Round Capital, Redpoint Ventures, Google Ventures, Snowflake Ventures, and Databricks Ventures.About the RoleAs a Software Engineer at Omni, you will engage with our entire technology stack to tackle diverse customer challenges. Collaborating with a highly skilled team, you will have the freedom to prioritize tasks and resolve issues independently or collectively.Your primary focus will be on developing user experiences, APIs, and data processing functionalities within our TypeScript application, leveraging the React and Remix frameworks.Our engineering culture prioritizes rapid, iterative shipping while upholding rigorous standards for performance and quality. Recent projects have included:Comprehensive spreadsheets integrated within our BI platform.A Managed Cloud Platform (MCP) server for Blobby, our AI chatbot that crafts queries within the boundaries of a semantic data model.CSV upload functionalities.APIs for various applications.Data writing capabilities to Google Sheets.QualificationsExceptional technical and communication skills.3-10+ years of experience in building production-level software with proficiency in TypeScript or JavaScript.Strategic mindset with the ability to align business and product objectives with development speed and engineering excellence.Proficiency in analytical tools such as SQL, Looker, Tableau, Mode, Amplitude, or Google Analytics.Preferred Qualifications:Experience in developing data products.Familiarity with data warehousing solutions like Snowflake, BigQuery, or Redshift.Knowledge of data use cases and the analytics ecosystem.Our Technology Stack:TypeScriptReact with RemixKotlin / JavaAWSWhy Join UsBe part of a dynamic and innovative team.Opportunity for professional growth and advancement.Contribute to exciting projects that make a real impact.
Full-time|$3.1K/yr - $3.1K/yr|On-site|San Francisco
About Air AppsAt Air Apps, we embrace bold thinking and rapid innovation. Founded by a family in 2018 in Lisbon, Portugal, our mission is to revolutionize planning with the world’s first AI-powered Personal & Entrepreneurial Resource Planner (PRP). With over 100 million downloads globally, we have expanded our presence to San Francisco while remaining self-funded and committed to pushing the limits of AI-driven solutions that genuinely enhance lives.We invite you to become a part of our journey to transform resource management and empower individuals across the globe.The RoleAs a React Engineer, your primary focus will be on crafting responsive and accessible user interfaces for our web applications. You will work collaboratively with designers, product managers, and backend engineers to convert wireframes and prototypes into beautiful, stable, and scalable front-end experiences that engage our users.This job posting serves to build our talent pool as we prepare for the official launch. We will reach out to you as soon as the position is officially posted.
Join Point as a Senior Mobile Engineer and be part of a pioneering team dedicated to creating a modern and aspirational banking experience. Our mission is to enhance the everyday debit card by integrating rewarding benefits and features that elevate financial transactions.To learn more about our dynamic team and vibrant culture, please explore here.
Join our dynamic team at Midstream as a Frontend Software Engineer. In this role, you will leverage your technical expertise to design and implement innovative web applications that enhance user experience. You will collaborate with cross-functional teams to deliver high-quality software solutions that meet our clients' needs.
Are you passionate about creating engaging user interfaces and enhancing user experiences? Join our innovative team at Sesame as a Web UI/UX Engineer. In this dynamic role, you will collaborate with designers and developers to build intuitive web applications that delight our users. Your expertise in user-centered design principles and your ability to translate concepts into wireframes and prototypes will be key to your success.
Full-time|$230K/yr - $260K/yr|On-site|San Francisco, California
About VSCO VSCO (pronounced vis–co) is an innovative platform empowering photographers with essential tools, a vibrant community, and exposure to enhance their creative and professional journeys. We foster a genuine and inspiring environment for photographers at every level, ensuring a space for creative opportunities, inspiration, and connections. Our mission is to support photographers in their endeavors, enabling them to connect with fellow creatives and businesses through a comprehensive suite of creative tools available on mobile and desktop, across our global community. We seek individuals who are motivated and take initiative to elevate our company mission. At VSCO, employees have the chance to make a significant impact, believing that collaboration leads to stronger outcomes than working in isolation. Our core values are foundational to our team culture and influence our hiring practices. Discover more about what it’s like to work at VSCO on our Careers Page. About The Role If you are passionate about React Native development and eager to be part of a dynamic team of creators, we invite you to apply for this role and assist us in empowering creators globally. At VSCO, you will collaborate with talented individuals who share your enthusiasm for innovation and creativity. We are constructing a comprehensive ecosystem of tools for photographers, enhancing our existing offerings while also creating new tools and services. This pivotal role will help define and advance our vision, shaping how our users create, connect, and earn. Join us in influencing the future of mobile, desktop, and web technologies, making a meaningful impact on the global creative community. As a Staff Engineer, you are fundamentally a technologist. You'll engage directly with the team in coding, solving complex problems, and staying updated with the latest technologies. However, your influence extends beyond individual contributions. You will serve as a technical leader, guiding the team through intricate challenges, advocating for best practices, and anticipating future developments to keep the team ahead of the curve. You will consider scalability, long-term maintainability, and future features even while the team is focused on current deliverables. You will mentor engineers, elevate quality standards, and enable the success of others. The Day to Day Lead the development of high-quality, scalable React Native applications while promoting rigorous testing, robust CI practices, and high standards throughout the codebase. Actively engage in coding and problem-solving alongside the team. Mentor junior engineers and foster a collaborative learning environment. Stay abreast of industry trends and best practices.
At ClickUp, we are not merely creating software; we are pioneering the future of work! In an era inundated by work sprawl, we envisioned a superior solution. This vision led to the development of the first truly integrated AI workspace, merging tasks, documents, chat, calendar, and enterprise search, all enhanced by context-driven AI. This empowers millions of teams to shatter silos, reclaim their time, and achieve unprecedented productivity levels. At ClickUp, you will have the chance to learn, utilize, and innovate with AI in ways that will not only influence our product but also the future of work itself. Join our bold, innovative team that is redefining the realm of possibilities! Role OverviewWe are in search of a Principal Frontend Engineer to spearhead the long-term technical vision for frontend engineering at ClickUp. In this pivotal role, you will lead architectural strategy across major product surfaces, tackle organization-wide frontend challenges, and shape how teams build and deliver at scale. You will collaborate closely with engineering, product, design, backend, and integrations leadership to ensure ClickUp’s frontend systems remain fast, reliable, and adaptable as the business expands.This hands-on technical leadership position is ideal for a candidate who can navigate both strategic and implementation levels, especially in a fast-paced, high-growth environment.What You’ll DoDefine and drive the frontend architecture strategy across product areas and platform investments.Lead the design of scalable, high-performance systems using Angular 2+ and React to support rapid product development.Address complex cross-team technical challenges related to performance, state management, scalability, and developer productivity.Collaborate with backend and integrations teams to shape end-to-end architecture for significant features and systems.Elevate standards for quality, testing, maintainability, and engineering rigor throughout the frontend organization.Provide technical leadership on high-impact initiatives and help teams navigate ambiguous or challenging problems.Guide teams toward practical decisions that balance speed with long-term product quality.Mentor senior and staff engineers, and contribute to shaping the frontend engineering culture and standards.Influence the roadmap and organizational decisions through strong technical judgment and effective product partnerships.
Position OverviewBobyard is rapidly expanding, presenting numerous opportunities to innovate and enhance our infrastructure to meet increasing demand.As a Senior React Developer, you will enjoy significant autonomy in designing, developing, and refining products. In our fast-paced startup environment, you will become the foremost authority on the solutions you create. We seek exceptional engineers who not only have a clear vision for the product but are also capable of diving deep into coding to deliver outstanding results.Key ResponsibilitiesDevelop and sustain the entire product stack (React, Django, PostgreSQL).Architect and scale backend APIs and data models.Manage frontend architecture and optimize UI performance.Collaborate closely with product management, computer vision, and design teams to deliver integrated features.Deploy and maintain infrastructure across AWS, GCP, and Heroku.Identify and resolve production issues while enhancing system reliability.Quickly prototype, iterate, and refine features based on customer feedback.Desired QualitiesSelf-driven and adept at navigating a loosely structured environment.Strong product intuition — understanding the why behind features, not just the how.Solid understanding of web architecture and system design fundamentals.Ability to transition seamlessly between frontend and backend tasks.Quick learner, resourceful, and proactive in addressing unclear problems.Strong work ethic — this role demands dedication typical of startup environments.Organized and capable of managing multiple concurrent projects.This is a full-time, in-person position in San Francisco. Your ability to learn quickly and demonstrate commitment will be critical. If you can show us that you can deliver the products our customers need at the pace and quality the market demands, we want to hear from you.
Full-time|$212K/yr - $265K/yr|On-site|United States
Founded in 2007, Airbnb started with two hosts welcoming three guests into their San Francisco home and has since expanded to over 5 million hosts, providing unique stays and experiences for more than 2 billion guests worldwide. Our platform fosters authentic connections between guests and local communities around the globe.Join Our Community: The UI Foundation team at Airbnb boasts a rich history, overseeing our design system, accessibility, motion design, and the essential tooling that links our design processes to product development. Within this framework, the UI Tooling team acts as the crucial bridge between our Design Language System and the daily workflows of hundreds of designers and engineers throughout the organization.UI Tooling is responsible for the platforms, integrations, and tools that facilitate collaboration and efficiency among designers and engineers. This encompasses design tooling, UI engineering workflows, and increasingly, AI-enhanced processes. As we accelerate AI enablement, this team plays a pivotal role in some of Airbnb's most strategic infrastructure initiatives.Your Impact: As the Engineering Manager for UI Tooling, you will provide essential leadership to ensure the team operates with consistency, clarity, and a long-term strategic vision. You will manage and nurture a team of engineers, oversee a multi-year roadmap across UI Tooling's core focus areas, and collaborate cross-functionally with Design, Product, and AI teams to advance the next generation of design and engineering support at Airbnb.This role is critical in facilitating UI Foundation's broader goals. With your leadership, the team will gain the focus and stability required to swiftly implement initiatives that will influence every product team at Airbnb.You will be responsible for strategy and execution across five key domains:AI Utilization of the Design System: Integrating Figma Code Connections, UI Development Skills and Agents, Prototyping Skills and Agents, and Design Skills and Agents.Core UI Development Workflow & Tooling: Component development and documentation tools, design-to-code platforms, and migration tools.Core Design Workflow & Tooling: Design systems, asset management, and collaboration tools.AI-Powered Workflows: Enhancing existing tools with AI capabilities.Cross-Functional Collaboration: Working closely with Design and Product teams to ensure seamless integration of tools and processes.
Netic is revolutionizing the essential services sector by functioning as the AI revenue engine that underpins the American economy.Backed by $43 million in funding from esteemed investors such as Founders Fund, Greylock, Hanabi, and Dylan Field, who spearheaded our Series B, we've empowered our clients to secure hundreds of thousands of jobs across various service industries in North America. Today, numerous companies operate entirely on an AI-first model using Netic.Join our dynamic team of relentless innovators hailing from Scale, Databricks, HRT, Meta, MIT, Stanford, and Harvard, as we bring cutting-edge AI solutions to the physical economy, tackling intricate challenges with complex data, and delivering immediate, tangible impacts.As a UI/UX Engineer, you will design user interfaces that make advanced AI technologies feel intuitive and accessible. This pivotal role ensures that our sophisticated automation capabilities are user-friendly for non-technical experts, effectively bridging the gap between advanced technology and everyday business operations.
Join our innovative team as a Frontend Engineer for the UI Platform at Cloudflare. In this pivotal role, you will be responsible for developing and enhancing our user interface components, ensuring a seamless experience for our clients. You will have the opportunity to collaborate with talented engineers and designers to shape the future of our platform.We value creativity and problem-solving skills, and we’re looking for passionate individuals who thrive in a dynamic environment. Your work will directly impact how our users interact with our services and contribute to the overall success of the company.
At Drivetrain, we are dedicated to revolutionizing the way businesses approach financial planning and decision-making. Our innovative platform empowers companies to scale efficiently and meet their goals with confidence.Founded in 2021 by former Google engineers, Drivetrain operates as a remote-first organization with its headquarters in the San Francisco Bay Area. We're a rapidly growing startup backed by prominent venture capital firms, positioning ourselves for continued success. Remote-friendly: We gather top talent from around the world, providing them with autonomy and trust to excel in their roles. Open & transparent: We believe that access to information drives creativity and productivity, enabling our team to produce their best work. Idea-friendly: Our culture fosters innovation, allowing everyone to propose ideas and contribute to meaningful change. We celebrate the best ideas. Customer-centric: Our product-led growth strategy prioritizes learning from our customers, collaborating closely to build exceptional software.
About the RoleAs a Visual Design Engineer at Sim, you will take the lead in crafting and advancing our innovative platform for building AI agents. This is where developers come to design, connect, and deploy their AI creations. Your expertise will guide the entire process—from the architectural framework to the refined user interactions—defining how thousands of developers engage with our tools. Your role will integrate UI/UX design with engineering principles, influencing the core interface and real-time systems that power our product.Often likened to 'Figma for AI agents', you will elevate our platform further, enhancing its capabilities, user enjoyment, and efficiency as developers’ workflows become more intricate. Collaborating closely with engineering, design, and product teams, you will ensure a smooth agent-building experience from conception to launch.This is a pivotal position where you will establish benchmarks for visual design, interaction methodologies, and UI responsiveness. In our agile team environment, your influence will extend to all user interactions, allowing for the rapid deployment of impactful features.What You'll DoLead the design and development of Sim's dynamic visual canvas—the real-time, drag-and-drop editor that is central to our platform.Architect and implement user-friendly UI systems tailored for complex agent-building workflows.Design seamless interactions for developers to create, test, debug, and deploy agents within the product.Maintain a fast, beautiful, and resilient user experience as workflows expand in complexity.Ensure visual correspondence with execution: what users perceive should match the operational output.Establish standards for front-end code, component architecture, design systems, and user ergonomics.Collaborate across the stack in our Next.js monorepo, delivering updates to production on a daily basis.Define and enhance UX/UI patterns, focusing on developer satisfaction.What We’re Looking ForA design-oriented engineer with robust experience in React and TypeScript.A strong intuition for UI/UX—your focus is on both aesthetics and functionality.Experience in developing intricate, interactive frontend systems such as canvas editors and collaborative tools.Demonstrated ability to create polished, user-centric developer tools.Comprehensive knowledge of front-end performance, animation, and responsiveness.A proactive mindset with a strong sense of ownership—helping shape the roadmap as well as executing it.
About UsAt thesirius, we're powered by the backing of a16z Speedrun, dedicated to providing innovative solutions that drive growth for top consumer brands. Our advanced technology is relied upon by industry leaders such as Higgsfield and Promova. As we scale our operations, we are on the lookout for talented professionals who are passionate about making impactful contributions to consumer technology advancements. Join our vibrant team where initiative, ambition, and a commitment to excellence in problem-solving are highly valued.Position OverviewIn the role of Senior Frontend Engineer, you will be instrumental in the design, development, and maintenance of the user-facing elements of our core products. Your key responsibilities will include:Crafting and implementing robust, scalable, and user-centric interfaces that accommodate new features and shifting business requirements.Collaborating seamlessly with backend engineers, product managers, and design teams to deliver high-quality, integrated solutions.Providing technical guidance through best practices, mentoring fellow team members, and engaging actively in code reviews.Championing the adoption of contemporary frontend technologies, frameworks, and methodologies to guarantee product quality and maintainability.Identifying and addressing intricate technical challenges pertaining to user experience, performance, and security.Fostering a culture of continuous improvement and operational excellence within the engineering team.QualificationsA minimum of 5 years of professional experience in frontend development for high-traffic applications.Expertise in JavaScript/TypeScript and familiarity with modern frontend frameworks.Proven experience in integrating frontend applications with backend APIs and third-party services.Strong understanding of UI/UX principles, performance optimization, and frontend architecture.Excellent analytical skills with a track record of independently driving projects to successful completion.Full-time availability and a strong passion for contributing to a high-growth, ambitious environment.How to ApplyWe invite you to submit a brief introduction along with your resume for consideration.
Feb 19, 2026
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