Senior Backend Software Engineer

About Sleeper:Sleeper is a dynamic and rapidly growing platform dedicated to transforming the fantasy sports and gaming experience for sports enthusiasts. Initially focused solely on NFL fantasy football, we have diversified our offerings over the past decade to include NBA, LCS, and soccer. With our innovative Sleeper Picks feature, users engage in real-money Daily Fantasy Sports (DFS) by predicting player performances based on projections from trusted third-party sources. As pioneers in the sports gaming sector, we are proudly backed by some of Silicon Valley's leading investors.Role Overview:We are on the lookout for a talented and forward-thinking Senior Frontend Engineer to enhance our team. At Sleeper, we recognize that exceptional and imaginative individuals can effectuate change and create remarkable products, regardless of their technological background. In this role, you will be instrumental in the development of our mobile and web applications, ensuring scalability, reliability, and top-notch quality that will benefit millions of dedicated users daily.Our mobile platform, built on React Native, has been modernized with TypeScript and features top industry packages like react-query, react-navigation, and reanimated. We seek an experienced developer to contribute their expertise in refining our product, introducing new features, enhancing quality, and delivering lightning-fast performance to our vast user base.Responsibilities:Collaborate with design teams to gather user requirements and translate them into detailed technical specifications for our products.Craft clean, maintainable, and efficient code using React Native, TypeScript, and associated libraries (e.g., React Query, Navigation, Reanimated).Create reusable UI components and establish a well-organized component hierarchy within the application.Implement user interface (UI) functionality and logic utilizing React features such as state management, props, hooks, and lifecycle methods.Integrate frontend components with backend services through APIs (RESTful or GraphQL).Diagnose and resolve complex performance issues, socket connections, data caching, and more.Stay informed on the latest developments in React, best practices in mobile development, and accessibility standards.Who You Are:A highly motivated individual with a passion for frontend development and a knack for problem-solving.

Join sleeper, the premier platform designed to connect sports enthusiasts with friends and fellow fans. On our platform, over 10 million users globally can enjoy game scores, interactive games, engaging chat features, meme sharing, and so much more. We are dedicated to continuously enhancing our digital playground for sports lovers by adding new games and social functionalities.Job Location (Hybrid - 2 Days On-site): San Francisco Bay Area; SeattleAbout Our Design and Research TeamWe embrace new sports and gaming experiences as part of our research initiatives.Our team embodies a culture of hard work and fun – we are passionate about our craft and make time for team bonding.We find inspiration in design every day and partake in annual design workshops to enhance our skills.Your Role Will Involve...Designing user experiences across various platforms including iOS, Android, Web, and Tablets.Collaborating with fellow designers in brainstorming sessions and providing mentorship to junior team members.Taking ownership of design execution while innovating and refining existing standards and practices.Developing scalable design solutions and contributing to our design system's growth.Being part of a dynamic and innovative design team pushing the limits of creativity!We Are Looking For Candidates Who Have...3 to 5+ years of professional experience in Product Design.A robust portfolio that reflects your passion and foundation in design.Proven ability to manage the design process from concept through to implementation.Strong collaboration skills with Product, Engineering, and other stakeholders to shape product decisions.Meticulous attention to detail and expertise in your design discipline, with a desire to mentor and elevate fellow designers.In-depth knowledge of design systems and their related processes.Bonus Points For...Experience in sports or gaming design.

Join our innovative team at sleeper as a Creative Strategist. In this role, you will harness your creative prowess to develop compelling strategies that drive engagement and foster brand loyalty. Collaborate with cross-functional teams to ideate and execute captivating marketing campaigns that resonate with our target audience.

Important NoticeThis is a full-time, in-person position located in San Francisco (Presidio). We operate from our office five days a week.Candidates must be based in the Bay Area or willing to relocate prior to employment.We require authorization to work in the US, but we are open to O-1 visa sponsorship for outstanding candidates.Your RoleYou will take charge of the frontend aspect of Sauna, delivering interfaces that are seamless, user-friendly, and refined, even when the underlying processes are intricate.You will independently make product and design decisions, rapidly prototype, and implement solutions without being constrained by exhaustive specifications. You may sometimes work from existing designs or create new ones.Technology StackKey technologies include TypeScript, React, Next.js, Y.js, TipTap, and Cloudflare Workers.Who You AreMinimum Qualifications4+ years of experience in frontend engineering with a portfolio that impresses the founders. Show us complex and polished interfaces you've developed.Proficient in TypeScript and React — you are knowledgeable about reconciliation, optimizing renders, and understanding browser behavior.Strong product sense and design intuition — you can interpret a rough product vision, draft user interactions, and create solutions that resonate. You notice when transitions are slightly too slow or when user affordances are ambiguous.Decisive in design — you will need to take ownership of certain UX choices, produce simple designs when necessary, and find paths to overcome obstacles.Autonomous and humble — you do not wait for permission or perfect guidelines. You implement, gather feedback, and improve.Detail-oriented — you care about aspects like loading states, empty states, error messages, and keyboard shortcuts. The myriad small details that enhance software quality matter to you.Preferred Qualifications (not mandatory)Experience with Y.js, Automerge, or CRDTs for real-time collaboration.Familiarity with rich text editors (ProseMirror, TipTap, Slate).Developed interfaces for LLM-based tools (handling streaming responses, uncertainty management, progressive disclosure, etc.).

Join us at datacurve as we revolutionize the developer experience through a gamified platform that inspires tens of thousands of coders to engage in thrilling software engineering challenges – all while advancing the frontiers of large language models (LLMs)!As a Senior Frontend Engineer, you will be a vital member of a dynamic and enthusiastic team committed to tackling complex technical challenges, crafting captivating gamification experiences, and laying the groundwork for a collaborative global developer community.Your ResponsibilitiesCreate and develop user-friendly, visually appealing, and engaging interfaces that attract developers.Work closely with product managers, designers, and backend engineers to create integrated gamified experiences and interactive coding challenges.Design scalable frontend architectures, ensuring maintainability, performance, and reliability as our platform expands.Promote frontend best practices, enhance code quality, and provide mentorship within the engineering team.Engage in continuous experimentation, iteration, and optimization of user experiences driven by analytics and user feedback.Your QualificationsOver 3 years of experience in developing scalable, high-performance frontend applications utilizing React and TypeScript.Expertise in crafting responsive, attractive user interfaces using Tailwind CSS.In-depth knowledge of data fetching, state management, and API integration using GraphQL.Demonstrated ability to design maintainable, modular frontend codebases and implement best practices.Experience in developing and maintaining reusable component libraries and frontend design systems.Familiarity with frontend testing frameworks and best practices (e.g., Vitest, React Testing Library, MSW).A strong passion for creating delightful user experiences and meticulous attention to detail in UI/UX design.A proactive approach to iterating quickly based on user feedback and analytical insights.Preferred QualificationsExperience with Relay for efficient GraphQL data management and client-side caching.Familiarity with frontend code generation tools and workflows (e.g., Plop).Understanding of modern CI/CD practices, including automated testing, linting, and deployment pipelines.

About GigaGiga has successfully secured $61 million in Series A funding and boasts a diverse client portfolio that includes industry leaders like DoorDash. We are on a mission to revolutionize customer experiences by developing real-time AI agents capable of understanding emotions, resolving issues instantly, and scaling to meet the demands of the world's largest enterprises.This is a pivotal moment in our journey. While we have achieved significant milestones, our ambitions extend further. Our vision is to establish ourselves as the premier AI platform for enterprise automation, driven by our voice superintelligence. To bring this vision to life, we are on the lookout for exceptional engineers.The work we do impacts millions of users daily, and our engineers enjoy a high degree of autonomy, making a tangible impact. This is a unique opportunity to join a company with visionary founders, a proven track record of commercial success, and a clear trajectory towards becoming a generational powerhouse. Here are some highlights about us:Voice AI startup Giga raises $61M Series ADoorDash and Giga PartnershipIf this mission resonates with you, we invite you to apply!Why Join Us in this Role?Momentum: Become part of a team recognized by both customers and investors.Ownership: Play a vital role in innovative projects that transform industries and shape the company's technical and product direction.Growth: Advance your skills alongside top-tier engineers and visionary founders.More About the RoleWe are searching for an experienced Senior Frontend Engineer with a strong background in creating functional and visually engaging user experiences. You will spearhead the design and development of our frontend applications that users interact with daily, collaborating closely with product managers, designers, and backend engineers.What You’ll DoOwn the Frontend: Quickly contribute to our products and lead the development of design systems.Craft Seamless UX: Develop responsive, accessible, and high-performance interfaces for enterprise users.

Why Weave ExistsAt Weave, we are on a mission to revolutionize the way therapeutic knowledge is captured, transformed, and communicated throughout the drug development process. By equipping human experts with advanced AI tools, we strive to ensure that drugs reach patients quickly, safely, and affordably.The Weave Platform enhances regulatory workflows from inception to completion, seamlessly integrating AI to optimize each phase. Together with our clients, Weave is crafting the AI workbench that supports the entire therapeutic lifecycle.The Role & Your MissionWe are developing a collaborative document platform and are in search of a Frontend Engineer who is passionate about craftsmanship, usability, and delivering functional solutions for our customers.You will excel in this role if you can navigate from problem discovery to prototype to production, making informed trade-offs along the way. We prioritize simplicity, well-tested, and robust solutions over unnecessary complexity. If you enjoy transforming unclear customer challenges into sleek, high-performing interfaces, we encourage you to apply.What You’ll OwnCustomer-centric problem solving. Gain deep insights into how customers utilize our product and translate that knowledge into intuitive, elegant frontend experiences.Collaborative product development. Work closely with Product and Design teams to shape the development process, participating from ideation to delivery.Real-time collaborative editing. Design and implement a sophisticated document editor featuring multi-user collaboration capabilities (e.g., CRDTs, presence indicators, conflict resolution) that operates smoothly at scale.High-quality frontend code. Write efficient, well-tested TypeScript and React code, ensuring readability, maintainability, and thoughtful abstractions for your team and future self.Technical direction. Lead software design decisions for your projects, managing conceptual and technical complexities to maintain a healthy codebase as the product evolves.Continuous delivery of value. Balance speed with quality, shipping iteratively, measuring impact, and refining based on actual user feedback.What You’ll Bring5+ years of production experience in building modern web applications with React, TypeScript, and the broader frontend ecosystem.

About Flow EngineeringAt Flow Engineering, we are revolutionizing the complexities of hardware design with our AI-native requirements platform. Our innovative approach combines elite engineering talent with AI capabilities, enabling teams to design, iterate, and deliver projects more efficiently than ever before.Role OverviewWe are seeking a Senior Frontend Software Engineer who will be pivotal in shaping core user experiences within our platform. You will leverage AI-driven workflows to create a seamless, intuitive user interface that simplifies complex systems engineering concepts. Collaborating closely with design, product, infrastructure, and AI engineering teams, you will ensure that our product remains user-friendly and efficient.Your ResponsibilitiesLead the development of substantial user-facing features in Flow v3, including interactive views for requirements, collaboration processes, and AI-enhanced workflows.Create high-quality, accessible user interfaces utilizing a contemporary frontend framework and component system.Incorporate AI functionalities into the product in ways that are intuitive, interpretable, and beneficial for engineers.Collaborate with design and product teams to rapidly iterate on interaction patterns, prototypes, and new workflows.Contribute to defining frontend architecture, design systems, and performance enhancements as the application and user base grow.About YouYou possess over 5 years of experience in developing rich, data-intensive web applications using modern frontend frameworks.You have robust experience with React (or a similar framework) and TypeScript, including component design, state management, and testing methodologies.You adopt a product-oriented mindset, considering user journeys and edge cases beyond just individual screens.You are comfortable collaborating closely with design and product teams, providing and receiving feedback throughout the iteration process.You are open to occasionally working across the stack (e.g., refining APIs, integrating features) to deliver complete functionalities.Our Technology StackOur primary frontend stack includes React and TypeScript.We utilize Tailwind or a similar utility-first or component-driven styling approach.Integration with backend APIs and AI services is a critical aspect of our platform.

About UsAt Serval, we are at the forefront of innovation, pioneering an AI-native automation platform that revolutionizes enterprise operations. Our intelligent agents are designed to comprehend real-world workflows and execute them seamlessly, transforming manual tasks and outdated systems into adaptive, self-learning software solutions. Established in early 2024, Serval has rapidly gained the trust of industry leaders such as General Motors, Notion, Perplexity, Vercel, Mercor, LangChain, and Verkada, enabling them to automate complex operational workflows.Our cutting-edge platform utilizes agentic AI technology that translates natural language into production-ready workflows. Serval's agents do more than respond; they reason, take decisive actions across various systems, and continuously enhance their performance through user interactions. Initially focused on operational use cases, our technology has expanded into a versatile AI automation layer utilized across IT, HR, Finance, Security, Legal, and Engineering sectors.Our mission is to eradicate repetitive manual tasks throughout enterprises, empowering teams through intelligent automation. Ultimately, we aim to develop the universal AI operations layer—a system of agents that optimally manages workflows across all business functions, ensuring efficiency and innovation.Supported by top-tier investors including Sequoia Capital, Redpoint Ventures, Meritech, First Round, General Catalyst, and Elad Gil, our founding team comprises seasoned product and engineering experts from Verkada.

At HomeVision, we are revolutionizing the home valuation and appraisal industry by efficiently valuing a $40 trillion asset class. Our mission is to enhance equity and transparency within the US housing market. Backed by Initialized Capital, we are experiencing remarkable traction and revenue growth. We are on the lookout for a skilled Frontend Engineer to help us innovate our products and provide exceptional experiences for our customers.To thrive in this role, a strong empathy for our end users and a holistic understanding of product development are crucial.Key Responsibilities:You will be immersed in a cutting-edge React/Typescript and Golang stack, creating workflow automation solutions tailored for our primary users—home appraisal professionals. At HomeVision, our engineers have the autonomy to engage with the entire product lifecycle, from refining valuation models to enhancing customer onboarding and crafting intuitive frontend data visualizations that effectively communicate results.What You Bring to the Table:Extensive full-stack development experience across both backend and frontend technologies.Demonstrated proficiency in Unix/Linux environments and distributed systems.A knack for quickly learning and mastering new programming languages and technologies.Bonus Qualifications:Familiarity with technologies such as Go, Python, React/Typescript, Elasticsearch, and Docker.Experience in scientific and numerical computing (e.g., numpy, scipy, scikit-learn, tensorflow, pytorch, jupyter) is a plus.What We Offer:A competitive salary alongside a meaningful equity package.Comprehensive medical, dental, and vision coverage.401k plan.Generous parental leave policies.Flexible vacation policy.A high level of autonomy and ownership over your projects.Support for your professional development and aspirations through mentorship and collaboration.

About UsEma is pioneering the next generation of AI technology designed to empower every employee in the enterprise to unleash their creativity and enhance productivity. Our unique technology enables businesses to delegate repetitive tasks to Ema, the Universal AI employee. Founded by former executives from Google, Coinbase, and Okta, along with seasoned entrepreneurs, we are backed by some of the world's leading investors and angels. With headquarters in Silicon Valley and Bangalore, we offer a hybrid work environment, expecting employees to be in the office three days a week.Your RoleAs a Software Engineer at Ema, you will be passionate about crafting and developing maintainable software applications. You will be a creative problem-solver who excels in ambiguous situations, transforming abstract challenges into tangible solutions. Most importantly, you will be excited to join a mission-driven, dynamically growing startup that makes a lasting impact.Key ResponsibilitiesDesign, develop, and implement outstanding user interfaces for web applications using contemporary web technologies such as HTML, CSS, and JavaScript.Work closely with product managers, UX designers, and other stakeholders to gather requirements, manage the user experience, create wireframes, and develop high-fidelity prototypes.Maintain and develop API integrations to ensure seamless communication between front-end and back-end systems, as well as with third-party services.Construct, test, and deploy web applications utilizing various development frameworks such as React, Angular, Vue.js, or Next.js.Diagnose and resolve UI-related issues, ensuring a consistent and optimal user experience across diverse platforms and devices.Create end-to-end solutions by writing clean, maintainable, and well-documented code, adhering to coding standards and deploying/debugging using platforms like Vercel.Preferred QualificationsA Bachelor's degree in Computer Science, Web Development, or a related discipline, or equivalent work experience.A minimum of 5 years of professional experience in UI engineering, emphasizing API integration, data visualization, and web application development.Strong command of HTML, CSS, and JavaScript, along with proficiency in modern front-end frameworks such as React, Angular, Vue.js, or Next.js.

About UsAt Amari AI, we're revolutionizing the logistics industry by transitioning global trade from outdated, manual workflows to innovative AI-driven solutions. Our advanced AI agents enhance human capabilities, automating labor-intensive tasks to expedite shipment processing with greater accuracy and efficiency.Having successfully navigated the initial product development phase, we have established a strong product-market fit and are experiencing exceptional growth, with over 100% month-over-month revenue increase. Backed by $5M in funding from First Round Capital and Pear VC, we're expanding our platform to serve a growing customer base with significant operational volume. Our highly skilled team hails from top tech companies like Google, LinkedIn, and Salesforce, as well as leading academic institutions and AI research facilities.The RoleWe are in search of a Senior Frontend Engineer who excels at the convergence of rapid execution and intricate systems design. In this pivotal role, you will spearhead the advancement of our AI-powered platform, transforming complex logistics workflows into seamless, high-performance user experiences.This position is crucial for a technical leader eager to connect sophisticated backend AI data with the human operators who depend on it. Your contributions will extend beyond merely delivering features; you will establish the architectural standards that will enable our team to accelerate its pace of innovation as we grow.What You’ll DoArchitect Scalable Systems: Design and oversee the transformation of our frontend architecture to facilitate real-time, data-intensive dashboards utilizing TypeScript, React, and Tailwind CSS.Design Human-in-the-Loop AI: Create user-friendly interfaces that clarify AI outputs and automated workflows, making them accessible and manageable for operational teams.Drive Velocity & Quality: Take full responsibility for the product lifecycle, from technical exploration and scoping to monitoring in production, ensuring a high shipping frequency without compromising reliability.Technical Leadership: Articulate the technical vision, mentor new team members, and cultivate an exceptional engineering culture.Complex Problem Solving: Address the unique challenges of global trade, ensuring our core services maintain robust uptime while managing unpredictable real-world document inputs.Who We’re Looking ForSenior Expertise: 6–8+ years of professional software engineering experience, demonstrating a successful track record in dynamic, high-growth environments.Technical Proficiency: Expertise in JavaScript frameworks, particularly React, along with experience in TypeScript and CSS frameworks.Problem Solver: Strong analytical skills with a passion for tackling challenging issues and implementing effective solutions.

BitGo develops infrastructure for digital assets, offering solutions for custody, wallets, staking, trading, financing, and settlement. Since 2013, the company has supported institutions and retail investors worldwide, managing a significant portion of Bitcoin transactions and providing independent custody and staking services. BitGo operates globally and serves a broad client base, including exchanges and major brands. Role overview The Frontend & Mobile Software Engineer position is a full-time, onsite role based in San Francisco, California. This role emphasizes regular in-person collaboration to foster teamwork and drive innovation within the office. What you will do Develop and enhance cross-platform mobile applications for BitGo users. Use React or React Native to create a seamless and intuitive user experience. Support projects that power BitGo’s digital asset products and services. Requirements Proven experience with React or React Native. Interest in building mobile and frontend features that improve user experience. Ability to work onsite with the team in San Francisco. Learn more about BitGo at www.bitgo.com.

Join Airwallex as a Senior Frontend Engineer, AIAt Airwallex, we redefine the landscape of global financial services. As the premier unified payments and financial platform for businesses around the globe, we harness our proprietary technology to empower over 200,000 organizations, including notable names like Brex, Rippling, Navan, Qantas, and SHEIN. Our fully integrated solutions support everything from business accounts and payments to spend management and embedded finance on a worldwide scale.Originating from Melbourne, our diverse team of over 2,000 talented professionals across 26 global offices is dedicated to innovating within the tech landscape. With a valuation of US$8 billion and investment backing from industry leaders such as T. Rowe Price, Visa, Mastercard, and Sequoia, we are at the forefront of establishing the future of global finance. If you are eager to tackle ambitious challenges and make a real impact, we invite you to join our team.What We Look ForWe seek builders with an entrepreneurial spirit who thrive on impactful work, rapid learning, and true ownership. You bring deep expertise and critical thinking skills, driven by our mission and operating principles. You are agile yet judicious, curious yet focused, and you approach decisions with analytical rigor while maintaining pace.You embody humility and collaboration, transforming innovative ideas into tangible products, and you’re committed to executing projects efficiently. Leveraging AI, you will enhance productivity and expedite solutions to complex problems. Here, you will confront significant, high-visibility challenges alongside exceptional colleagues, advancing your career as we revolutionize global banking.About Our TeamOur team is dedicated to developing AI solutions that alleviate financial burdens for startups worldwide. We are pioneering intelligent automation across payments, payroll, bookkeeping, and tax, allowing founders to concentrate on growth rather than finance management.Utilizing state-of-the-art AI tools, from prompt engineering to fine-tuned models, we adopt the best strategies for each challenge by prioritizing genuine founder pain points, ensuring accountability for customer outcomes, and delivering swiftly.Our compact, elite team is focused on building, led by experienced operators with a proven track record of deploying AI products at scale. In this role, you will tackle challenging technical issues with significant autonomy and a direct impact on customer experience.

Join Collate as a Frontend Software EngineerAt Collate, we are revolutionizing the life sciences sector with our innovative AI document generation platform. Our mission is to expedite the delivery of life-saving innovations to patients by automating complex paperwork. As a seamless end-to-end solution, we support every stage of drug, diagnostic, and medical device development, from initial concept to market launch.Led by our visionary CEO, Surbhi Sarna, a former General Partner at Y Combinator, and our CTO, Nate Smith, a former Visiting Partner at Y Combinator, we have assembled a team of elite professionals with experience from top-tier companies like Google and Amazon. Our small team has garnered over $30M in seed funding from esteemed investors including Redpoint and First Round Capital, positioning us for rapid growth and impact in the healthcare field.As a Frontend Software Engineer, you will play a pivotal role in shaping the user experience at Collate. Your innovative contributions will translate complex AI technology into intuitive and user-friendly tools for doctors, patients, and researchers. Your work will directly influence the product experiences that are critical for improving patient outcomes.You will be working on a predominantly frontend-focused enterprise workflow application, ensuring the interface is clear, reliable, and trustworthy. This is a unique opportunity to design the intersection where transformative technology meets real-world users.Our Cutting-Edge Tech StackWe utilize modern technologies including TypeScript, React, and Tailwind CSS for our frontend development, creating a dynamic environment for innovation and collaboration.

Join Us as a Frontend Engineer at PlaudPlaud Inc. is on a mission to create the world's most reliable AI work companion, enhancing productivity and performance through innovative note-taking solutions. With over 1,500,000 users globally since our inception in 2023, we strive to amplify human intelligence by developing next-generation interfaces that capture and utilize thoughts and ideas effectively.We are a Delaware-incorporated, San Francisco-based company that merges cutting-edge hardware and software to redefine human-AI collaboration. Our commitment to data security and privacy is reflected in our compliance with ISO 27001, ISO 27701, GDPR, SOC 2, HIPAA, and EN 18031 standards.Explore more about Plaud at www.plaud.ai and connect with us on Instagram, X, Facebook, LinkedIn, and YouTube.

Join Fable Security as a Frontend EngineerIn today's digital landscape, AI-driven threats and human errors are the leading risks to enterprise security. At Fable, we understand that cybercriminals exploit human behavior rather than just systems. With human errors accounting for 70% of security breaches, we aim to transform individuals from targets into a robust line of defense.Fable offers a unique human risk platform that actively influences employee behavior. Our platform is designed for simplicity and scalability, integrating complex employee data to identify risky behaviors and deliver timely, relevant interventions directly to users in their work environment.Backed by prominent investors like Redpoint Ventures and Greylock Partners, and founded by innovators from Abnormal Security, we are addressing a critical challenge in the cybersecurity sector within a multi-billion-dollar market. Our diverse team includes alumni from leading institutions such as Meta, Twitter, and Stanford, and we are on a rapid growth trajectory, offering a pivotal opportunity to shape the future of security.

About LayerIn the past ten years, a dynamic ecosystem of software tools tailored for small and medium-sized businesses (SMBs) has flourished, assisting them in managing various aspects of their operations. From payments to payroll, businesses have seen significant advancements; however, accounting solutions have not kept pace. Many small business owners continue to grapple with disjointed, generic accounting software and the high costs of bookkeepers.At Layer, we are revolutionizing accounting software and bookkeeping by integrating them into the everyday tools that SMBs rely on. Our platform empowers software companies to swiftly deploy modern accounting solutions and bookkeeping services to their SMB clientele, eliminating reliance on outdated accounting systems or costly bookkeepers.The RoleWe are seeking engineers who aspire to build not just a superior product but also a thriving team and company culture. This requires a blend of broad technical expertise across our technology stack, alongside less common skills such as:Thinking innovatively from foundational principles while aligning with customer needs.Demonstrating curiosity about both technical and business challenges.Skillfully managing competing priorities and trade-offs in relation to company goals.Exhibiting a strong sense of ownership over product and team decisions.Fostering a supportive environment that enhances the strengths of team members.We believe that exceptional early-stage engineers often possess some common experiences, such as:2+ years of experience with dynamic software teams.Experience navigating the ups and downs of developing new products from inception.A proven track record of leadership growth within teams.That said, we deeply value individuals who take the initiative to tackle problems and pursue opportunities they are passionate about, so we welcome those who may not fit the exact profile to reach out.Our Tech StackWe do not prioritize candidates based solely on their familiarity with our technology stack. One of the advantages of hiring exceptional engineers is our confidence in their ability to adapt quickly, with support from the team. However, we want every candidate to be excited about the tools and environment they will encounter on day one.API language: KotlinEmbedded components: ...

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.