Senior Frontend Software Engineer

Join Hive as a Senior Frontend Software Engineer!At Hive, we are at the forefront of cloud-based AI solutions, dedicated to revolutionizing the way organizations understand, search, and generate content. Trusted by some of the world's most innovative companies, we empower developers with a suite of top-tier, pre-trained AI models, handling billions of customer API requests each month. Our robust software applications, fueled by proprietary AI models and datasets, are paving the way for groundbreaking use cases in content moderation, brand protection, sponsorship measurement, and context-based advertising.With over $120M raised from esteemed investors such as General Catalyst, 8VC, Glynn Capital, Bain & Company, and Visa Ventures, Hive is proud to employ a diverse team of over 250 talented individuals across our offices in San Francisco, Seattle, and Delhi. If you're ready to shape the future of AI, we want to hear from you!About the RoleAs a Senior Frontend Software Engineer, you will play a pivotal role in developing our Hive Data and Hive Enterprise products. Collaborating closely with designers, product owners, and fellow engineers, you will create innovative user interfaces that define our platforms. Utilizing the latest web technologies, including React, Redux, Webpack, and ES6, you will deliver exceptional user experiences. Given our small, agile team, you will have the opportunity to iterate rapidly and make impactful software design decisions regarding product features. We seek candidates with a strong technical foundation who are passionate about frontend technologies and thrive in a dynamic, fast-paced environment.

At Lassie, we are revolutionizing the healthcare industry with our AI-driven solutions designed for medical practices.With over a million health practices spending more than $100 billion annually on administrative staff, the demand for efficient solutions has never been greater. The ongoing effects of COVID-19 have left many offices understaffed, leading to frustrated patients dealing with unanswered calls and confusing bills.We envision a future where AI seamlessly manages the operations of medical offices, handling administrative tasks and serving as the interface for patient interactions.Founded by Steijn Pelle, who propelled Robinhood and Coinbase to substantial revenue milestones, and Frédéric Renken, a former engineer and product pioneer at Superhuman, we are infusing consumer product expertise into healthcare and transforming the way doctors and patients engage.About the RoleWe are seeking a design-oriented Senior Frontend Software Engineer to develop a robust control plane for our powerful AI agents that manage billing and medical records. Your work will impact real patients and practices, as you create interfaces that inspire trust and ease of use.Emphasizing a consumer-friendly approach to healthcare software, we prioritize elegance and meticulous attention to detail. Your contributions will encompass various aspects including onboarding, human-in-the-loop review, and tools that empower practice owners to gain insights into their operations.You Are a Great Fit If You…Pursue excellence and are willing to refine your work until it achieves greatnessTake pride in crafting software that is fast and intuitiveSeek to maximize your impact through automation and effective processesPossess strong foundations in JavaScript and browser APIsShare our belief that healthcare software should be as delightful as consumer applicationsSome of Our Notable AchievementsDeveloped a synchronization engine utilizing encrypted SQLite in the browser, facilitating 100ms response times for healthcare payments and patient ledgersImplemented systems that significantly reduce the paperwork burden by thousands of hours each month

Compensation: Competitive base salary with significant equity options.Benefits: Comprehensive health and dental insurance, gym reimbursement, and daily team lunches.At Julius, we are pioneering an applied AI lab focused on developing coding agents. Our mission is to empower one billion individuals to become software creators, starting with innovative data science and analysis applications.Currently, our team has successfully executed 1 million lines of code every 36 hours, catering to over 1 million users while generating more than 3 million data visualizations.Our compact technical team comprises professionals with backgrounds from top companies such as Uber, Microsoft, and Facebook. We are generating revenue and are proudly supported by prominent investors, including AI Grant and founders from Vercel, Notion, Perplexity, Palantir, Replit, Zapier, Intercom, Dropbox, as well as researchers from OpenAI and Google DeepMind.Creating intuitive and high-performance user interfaces is essential for ensuring that Julius remains user-friendly for our vast audience. Our interface encompasses various components such as tool utilization, multi-step reasoning, code generation, execution, file management, and more. In this role, you will have the opportunity to define and build experiences across these elements as we expand toward our future objectives.

Join Filevine, a pioneering Legal AI firm revolutionizing legal work with our cutting-edge Legal Operating Intelligence platform. We unite data, documents, workflows, and teams into a cohesive system that enhances clarity and consistency in modern legal practice.With our innovative Legal Operating Intelligence System (LOIS), we empower legal professionals to shift from reactive to proactive operations. LOIS comprehensively analyzes your data to uncover insights, automate complex processes, and provide the clarity needed to excel. Recognized by Deloitte and Inc. as a leader in technological innovation, Filevine is experiencing rapid growth and is proud to be a top player in the industry.Position Overview:We are seeking a talented Senior or Staff Frontend Engineer to take ownership of essential product features across our Word and web applications. In this role, you will establish high standards for user interface quality, influence architectural choices, and collaborate closely with design, backend, and AI engineering teams. Your contributions will directly impact the workflows of thousands of legal teams daily.This is an opportunity for individuals looking for significant ownership, rapid iteration cycles, and substantial influence within one of Filevine’s most technical and user-oriented product areas.

About the Role Hinge Health is hiring a Senior Frontend Software Engineer in San Francisco (HQ). This role focuses on developing user interfaces that help patients engage with digital health tools. The work directly supports the company’s goal of making healthcare more accessible and effective.

Join Our Mission at 3Y HealthAt 3Y Health, we are revolutionizing the healthcare industry with cutting-edge AI-driven software designed to alleviate the administrative burdens that consume a staggering 40% of healthcare revenue. Our comprehensive platform empowers clinician entrepreneurs, providing them with the tools needed to effectively launch, manage, and grow their private practices. By integrating advanced AI and automation, we enable healthcare providers to reclaim their time, enhance their business operations, and deliver superior outcomes for their communities. We are proud to have secured over $200 million in funding from prestigious investors such as Founders Fund, General Catalyst, Softbank, and 8VC.Your Role as a Frontend EngineerWe are on the lookout for a talented Frontend Engineer who is passionate about crafting intuitive, high-performance user interfaces that resonate with our providers. The ideal candidate will possess extensive knowledge in modern frontend development frameworks, particularly React and TypeScript, coupled with a keen eye for design and user interaction. You will thrive in an environment that values clean, modular code and collaboration with design and product teams to create elegant user experiences. Experience in a startup or as a founding engineer is a plus, showcasing a proactive approach to ownership, speed, and continuous improvement.In this dynamic role, you will influence frontend architecture decisions and work collaboratively across engineering, design, and product teams to enhance our AI-first platform's user experience.

About the Role HeartFlow, Inc. is looking for a Senior Frontend Software Engineer in San Francisco, California. This role focuses on designing and building user interfaces for advanced cardiovascular imaging products. The work centers on creating intuitive, reliable experiences for clinicians and patients. What You Will Do Design and implement frontend features for cardiovascular imaging solutions Collaborate with product, design, and backend teams to deliver high-quality user interfaces Contribute expertise to improve usability and performance Collaboration This position works closely with cross-functional teams to ensure that user needs and technical requirements align throughout the development process.

About the RoleJoin us as a pivotal member of our frontend engineering team, where you will spearhead the development of exciting new features that enhance our user experience.Your Responsibilities:Design and develop the foundational frontend architecture for innovative products from inception to launch.Quickly prototype and refine features to test ideas and improve user interactions.Set and uphold best practices for code quality, testing, performance, and maintainability.Work in close collaboration with design, product, and backend teams to create a seamless user journey.Play an active role in crucial technical and product decisions as part of our founding engineering team.Guide and mentor upcoming engineers, helping to foster a high-performing frontend team culture.

About The Company:At Scribd Inc. (pronounced “scribbed”), we are dedicated to igniting human curiosity. Join our innovative team as we craft a universe filled with stories and knowledge, democratizing the flow of ideas and information while empowering collective expertise through our diverse suite of products: Everand, Scribd, Slideshare, and Fable.This position is officially approved and open within our organization.We foster a culture where our employees can express their true selves and take bold actions; where we engage in healthy debates and commitments as we navigate through challenges; and where every team member is empowered to prioritize the customer experience.In terms of workplace structure, we emphasize a blend of personal flexibility and community connection. Our flexible work benefit, Scribd Flex, allows employees to collaborate with their managers to select the work style that suits their individual needs best. A key aspect of Scribd Flex is our commitment to fostering intentional in-person interactions to enhance collaboration, culture, and connection. Therefore, occasional in-person attendance is required for all Scribd Inc. employees, regardless of their location.What qualities are we seeking in our new team members? We hire based on the principle of “GRIT”. This concept embodies the convergence of passion and perseverance toward long-term goals. At Scribd Inc., we believe in the immense potential this can unlock and encourage each employee to adopt a GRIT-focused approach in their work. In practical terms, GRIT serves as an acronym representing the standards we uphold: we seek candidates who can set and achieve Goals, deliver Results in their responsibilities, generate Innovative ideas and solutions, and positively impact the broader Team through collaboration and a positive attitude.About Our TeamThe Signup & Activation team at Scribd is tasked with creating crucial first experiences that transform visitors into engaged users across our brands: Scribd, Everand, and SlideShare. We manage the entire user journey from initial discovery through signup, onboarding, and early activation.As part of the Growth Engineering organization, we focus on crafting high-converting, high-performance, and enjoyable web experiences that enhance user acquisition and retention. Our work is driven by experimentation, utilizing A/B testing, personalization, and data-driven design to continually optimize conversion rates.

At Sift, we're revolutionizing the way modern machines are constructed, tested, and managed. Our innovative platform provides engineers with real-time insights into high-frequency telemetry, effectively removing bottlenecks and facilitating quicker, more reliable development processes.Sift originated from our work at SpaceX, where we tackled projects like Dragon, Falcon, Starlink, and Starship. The need for scalable telemetry, efficient debugging of flight systems, and guaranteed mission reliability pushed us to create new infrastructure. Founded by a team of experts from SpaceX, Google, and Palantir, Sift is designed for mission-critical applications where accuracy and scalability are paramount.As an early engineer at Sift, your role extends beyond merely coding; you will define the architecture, shape the product, and influence the company's culture focused on addressing significant engineering challenges. If you seek complex technical problems and the chance to build foundational systems for sophisticated machinery from the ground up, we want to connect with you.

Why Choose Brex?Brex stands as a pioneering finance platform designed to empower companies to spend wisely and act swiftly across over 200 markets. By seamlessly integrating global corporate cards with innovative banking, spend management, bill pay, and travel software, we enable founders and finance professionals to streamline operations, gain real-time insights, and effortlessly manage expenditures. Our AI-driven automation and exceptional service alleviate the burden of manual expense and accounting tasks, allowing clients to concentrate on their core objectives. Renowned companies such as DoorDash, Coinbase, Robinhood, Zoom, Plaid, Reddit, and SeatGeek trust Brex to handle their financial needs.Joining Brex means pushing boundaries, challenging conventions, and collaborating with some of the industry’s brightest minds. We are dedicated to fostering a diverse team and an inclusive culture, believing that your potential should only be constrained by the size of your dreams. We empower you with the tools, resources, and support to advance your career.Engineering at BrexOur engineering teams are committed to building scalable systems with intention and speed. Spanning Software, Data, Security, and IT, we operate with high autonomy and strong collaboration. We tackle complex technical challenges, take ownership of our outcomes, and pursue excellence in every aspect—from architecture to deployment. At Brex, engineering is a craft, and those who build are poised to become leaders.Your RoleAs a Senior Frontend Engineer, you will engage with the entire Brex technology stack to create and enhance products and features, as well as develop tools to facilitate Brex's scalability. You will have the chance to innovate and push the boundaries of the financial software experience, enabling companies to thrive. Your data-driven and creative thinking will be essential as we prepare to enter new markets. We seek individuals who are not only passionate about product development but also eager to lead multifaceted projects with numerous components. In this role, you will directly influence business outcomes and help define our long-term technical vision while maintaining high standards of quality.Work EnvironmentThis position is located in our San Francisco office, where we promote a hybrid work model that combines the dynamic nature of in-office work with the flexibility of remote work. We currently require a minimum of three coordinated in-office days each week—Mondays, Wednesdays, and Thursdays. Additionally, we offer up to four weeks of fully remote work per year!

OverviewIn today's fast-evolving technological landscape, the educational experiences of both students and teachers are undergoing significant transformations. At Kira Learning, we are committed to leveraging innovative AI technologies to make top-tier teaching and learning accessible to all. As a Senior Software Engineer at Kira, you will spearhead groundbreaking projects, shaping products that enhance educational experiences globally.Kira is a dynamic startup backed by prestigious Venture Capital partners such as New Enterprise Associates (NEA), Andrew Ng’s AI Fund, and Primavera.This full-time role requires flexibility in work hours and availability outside of typical business times. Our offices are located in San Francisco, CA, and New York City, NY, and we expect employees to work in-person four days a week from one of these locations.

Join the Ranks of Ivo's Innovative Engineering Team! About Us: At Ivo, we pride ourselves on being pioneers in legal technology. Our engineers are the architects of the future, creating groundbreaking solutions to enhance the efficiency of legal work. Our recent innovations include:An AI agent that seamlessly integrates with MS Word to assist with document editing (2023)Revolutionizing document retrieval with agentic RAG embedding techniques (2023)Utilizing large-scale LLMs for precise legal fact extraction (2024)Developing a legal assistant capable of searching extensive contract databases with unmatched accuracy (2024)Facilitating the clustering of legal documents based on familial relationships (2025)Implementing automatic deviation analysis to uncover hidden risks within extensive contract repositories (2025)Creating composite contracts by merging original documents with their amendments, bringing tears of joy to our clients (2025) Your Role: As a Senior Frontend Software Engineer, you will be at the forefront of crafting intuitive and collaborative AI-enabled user interfaces that enhance user experience. Your responsibilities will include:Developing real-time collaborative applications that leverage AI technologyWriting high-performance user interface codeIntegrating frontend components with LLM-powered agentsCollaborating with designers, legal experts, and fellow engineers to transform the legal landscape in the AI era Our Mission: At Ivo, we recognize the demands placed on in-house legal teams. The typical 80-hour workweek and the relentless deadlines often lead to burnout. We believe technology can alleviate these burdens. With the power of LLMs, we are dedicated to giving lawyers their lives back by automating tedious tasks. Our AI-native platform is designed to reduce legal drudgery, and with a remarkable 85% trial win rate, we are making a real difference in people's lives.

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 SimSim is at the forefront of creating the premier platform for AI agents, empowering developers and enterprises to visually design, deploy, and oversee high-performing agents that streamline workflows globally. Our vision is clear: AI agents will revolutionize how the world operates, and Sim is the key to making that a reality. With backing from renowned investors such as Standard Capital, Paul Graham, Perplexity, SV Angel, and Y Combinator, we have embraced open-source principles from our inception.Based in San Francisco, we are a dynamic, agile team that collaborates in person daily. With over 70,000 developers leveraging Sim, your contributions reach real users quickly and significantly. We value ownership, excellence, and the ambition of our builders as they shape the future from the ground up.Role OverviewAs a Frontend Software Engineer at Sim, you will be pivotal in developing our agent-building canvas and frontend platform. You will design intuitive user experiences, create robust and high-performance UI components, and help shape how thousands of developers utilize Sim. Collaborating with engineering, product, and design teams, you will take features from concept to production, directly influencing our product’s design, performance, and developer experience.Your ResponsibilitiesDesign and develop essential frontend systems focusing on visual, interactive experiences that enable users to create and manage AI agents.Lead the rollout of new features, UI components, and real-time interactions within a Next.js monorepo.Ensure the frontend experience is efficient, refined, and enjoyable at scale.Establish standards for front-end code, UI architecture, and design systems.Work closely with engineering, design, and product teams to create seamless developer workflows.Enhance our custom component library and expand our existing design system.Rapidly prototype and iterate, delivering impactful improvements daily.What We SeekExtensive experience with React and TypeScript.Strong understanding of UI/UX design principles and developer experience.Demonstrated capability to build sophisticated, interactive frontend applications (e.g., canvas editors, visual builders, collaborative tools).Knowledge of frontend performance, animations, and real-time systems (e.g., WebSockets, CRDTs).A proactive approach to problem-solving and a passion for technology.

Role Overview Sigma Computing builds a platform focused on making data accessible and understandable for users at every level. As the team grows in San Francisco, the company is looking for a Senior Frontend Software Engineer with a strong interest in solving complex problems and shaping core product features. What You Will Do Design and build responsive user interfaces, taking features from concept through deployment. Work closely with product managers, UX designers, and backend engineers to deliver features that improve the experience for users, including those without technical backgrounds. Create visualizations for structured and unstructured data, and develop new ways to boost application performance and interactivity. Work with modern front-end tools and frameworks, including React, GraphQL, TypeScript, and Node.js. Location This role is based in San Francisco, CA.

About Ivo Inc. Ivo Inc. builds legal technology for the future of contract work. The engineering team has delivered several firsts in the industry, including: An AI agent that integrates with MS Word for streamlined document editing (2023) Migration from traditional embedding models to agentic RAG systems (2023) Large-scale legal fact extraction using large language models (2024) A legal assistant that searches extensive contract databases with accuracy (2024) Clustering related legal documents to improve workflow efficiency (2025) Automated deviation analysis to identify hidden risks in large contract sets (2025) Tools for merging contracts and amendments into composite contracts, changing how legal professionals work (2025) Role Overview: Senior Frontend Software Engineer This role focuses on building user experiences that legal professionals rely on every day. As a Senior Frontend Software Engineer, the work centers on creating interfaces that are both intuitive and powerful. What You Will Do Design a dynamic, real-time interface powered by AI Write efficient, high-performance UI code Develop frontend components that connect seamlessly with LLM-powered agents Work closely with designers, legal experts, and engineers to shape the future of legal technology Our Mission Legal teams often face long hours and repetitive contract reviews, with little help from traditional technology. Ivo aims to change that by building an AI-native platform that automates routine legal tasks. The platform is trusted by users and holds an 85% trial win rate, the highest in the market. The team is committed to making a real difference for legal professionals. Who Thrives Here Engineers who care deeply about code quality and want their work to matter Location San Francisco

Join the Engineering Crew at IvoAt Ivo, our engineers are the architects of innovation. As pioneers in the legal tech sphere, we have introduced:• An AI agent that seamlessly integrates with MS Word for effortless editing [2023]• Revolutionary embedding models that enhance agentic retrieval-augmented generation [2023]• Cutting-edge large-scale legal fact extraction tools powered by LLMs [2024]• An intuitive legal assistant for precise contract database searches [2024]• Innovative clustering techniques for legal documents [2025]• Advanced deviation analysis to uncover hidden risks in contracts [2025]• Merging contracts with amendments for seamless time series tracking [2025]Your RoleAs a Senior/Staff Frontend Software Engineer, you will create delightful user experiences through your expertise in frontend technologies.Your responsibilities will include:• Designing real-time, collaborative interfaces infused with AI capabilities• Writing high-performance UI code that stands out• Crafting frontend components that work harmoniously with LLM-powered agents• Collaborating with a diverse team, including designers and lawyers, to transform legal workflows in the age of AIOur MissionEvery major business has a legal team, and these lawyers are often overwhelmed by 80-hour work weeks and tight deadlines. Until recently, technology has offered little relief.At Ivo, we harness the potential of LLMs to restore balance to the lives of these legal professionals. Our goal is to develop an AI-native platform that alleviates legal burdens. Users love our software – with an impressive 85% trial win rate, we are making a tangible difference in the industry, and we are just beginning.

Join Our Team as a Senior Frontend Software EngineerAt Daydream, we are dedicated to revolutionizing the dental industry by ensuring that dentists get compensated for their hard work. Operating within a $165 billion market, our innovative platform streamlines the tedious processes of insurance verification, claim submissions, denial appeals, patient billing, and maintaining accurate financial records. Unfortunately, the complexity of these tasks can lead to significant revenue losses for dentists, often totaling between 10-20%.This inefficiency contributes to many of the frustrations patients face in the American healthcare system, including its high costs and confusing procedures. Dentists want to focus on what they do best: treating patients and making them smile. Our mission is to enhance revenue cycle management through automation, fostering greater financial transparency for patients and providers alike, while supporting small business dentists across the nation.The RoleWe are on the lookout for a skilled Senior Frontend Software Engineer to join our dynamic team.