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Apiphany

Full-time|$150K/yr - $300K/yr|On-site|San Francisco

About ApiphanyApiphany stands at the forefront of foundational AI technology for physical product development. Our mission is to empower innovators in industries such as automotive, aerospace, medtech, and energy to convert vast amounts of unstructured technical data into real-time, actionable insights. Supported by prominent investors from Markforged, Datab…

Oct 23, 2025

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Staff Software Engineer - Frontend

Ivo Inc.

Full-time|On-site|San Francisco

About Ivo Inc. Ivo Inc. builds AI-powered tools for legal teams. The engineering group has launched projects such as: An AI agent that integrates with MS Word to improve document editing (2023) Shifting from traditional embedding models to agentic Retrieval-Augmented Generation (RAG) (2023) Applying large-scale language models for legal fact extraction (2024) Developing a legal assistant for searching extensive contract databases (2024) Clustering legal documents by lineage (2025) Automating deviation analysis to reveal hidden risks in contract databases (2025) Linking contracts and amendments to create composite timelines for clients (2025) Role Overview: Staff Software Engineer - Frontend This role shapes the user interface and overall experience for Ivo's AI-native legal platform. The Staff Frontend Engineer focuses on building fast, collaborative, and intuitive web applications that connect directly with LLM-powered agents. What You Will Do Develop a real-time, collaborative interface enhanced by AI features Write performant and maintainable frontend code Build components that interact with large language model agents Work closely with designers and legal professionals to improve the product for legal teams Our Mission Most businesses depend on in-house legal teams, where lawyers often face overwhelming workloads and tight deadlines. Historically, few tools have existed to help them. Ivo’s platform uses large language models to automate repetitive legal work, aiming to restore work-life balance for legal professionals. The company maintains an 85% trial win rate, even in a competitive market. The team is committed to making a real difference in the legal field. Location San Francisco

Apr 14, 2026

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Senior/Staff Frontend Software Engineer

Ivo

Full-time|On-site|San Francisco, California

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.

Mar 5, 2026

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Senior Software Engineer - Frontend

Hive

Full-time|On-site|San Francisco

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.

Nov 23, 2021

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Senior Frontend Software Engineer

Lassie

Full-time|On-site|San Francisco, CA

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

Dec 12, 2025

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Senior Frontend Software Engineer

Julius

Full-time|On-site|San Francisco, CA

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.

Jun 5, 2025

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Senior Frontend Software Engineer

WorkWhile

Full-time|Remote|Remote - San Francisco

About WorkWhileAt WorkWhile, we are dedicated to empowering workers to earn a better living and enhance their quality of life. With over 80 million Americans relying on hourly jobs that often come with unpredictable schedules, low wages, and limited benefits, financial stability is often out of reach.We are transforming the landscape of frontline work by fostering a more flexible and efficient labor market. Utilizing advanced AI technology, the WorkWhile platform enables businesses to swiftly access high-quality talent. Our workers enjoy same-day pay, complimentary telehealth services, opportunities for skill enhancement, and the freedom to select shifts that align with their expertise and schedules.With an ambitious goal to align incentives and rectify inefficiencies within the labor market, we are on a mission to disrupt the $650 billion staffing and recruiting industry. Supported by Khosla Ventures and recognized on the Inc. 5000 for 10x growth, WorkWhile is redefining the future of work.

Jan 27, 2026

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Staff Software Engineer, Frontend

Harvey

Full-Time|On-site|San Francisco

Why Join Harvey?At Harvey, we are revolutionizing the landscape of legal and professional services — not just incrementally, but through a comprehensive transformation. By harnessing cutting-edge agentic AI, a robust enterprise platform, and profound industry expertise, we are redefining how critical knowledge work is performed for generations to come.This is an exceptional opportunity to contribute to the creation of a transformative company at a pivotal moment. With over 1,000 customers across 58 countries, a solid product-market fit, and outstanding investor backing, we are rapidly scaling and pioneering a new category in real-time. The challenges are ambitious, the standards are high, and the potential for personal, professional, and financial growth is unparalleled.Our team consists of talented, driven, and passionate individuals dedicated to our mission. We work swiftly, with intensity, and take genuine ownership of the issues we face — from initial concepts to enduring outcomes. We maintain close connections with our customers — from leadership to engineers — collaborating to address real challenges with urgency and care. If you flourish in uncertainty, strive for excellence, and wish to shape the future of work alongside a team that elevates the standard, we encourage you to join us in building something great.At Harvey, we are crafting the future of professional services today — and we are just getting started.Role OverviewAs a Staff Software Engineer specializing in Frontend Development at Harvey, you will take the lead on engineering initiatives that shape the user experience across our diverse product suite: Assistant, Vault, Workflows, and our integrations with Microsoft Word and Outlook. You will also spearhead frontend engineering for innovative products currently in development at Harvey. Our team is composed of highly skilled, motivated, and empathetic engineers. We ensure that everything we create meets high standards — from design and architecture to code and communication. If this aligns with your ethos, this role could be an excellent fit for you.This position is based in San Francisco, CA, with a hybrid work model available, and we offer relocation assistance to new hires.What You'll DoDesign and develop new user interfaces for legal professionals and organizations to collaborate effectively with AI.Lead the development of comprehensive UI features for Assistant, Vault, Workflows, our Word/Outlook add-ins, and upcoming Harvey products — managing everything from project scoping and design reviews to implementation, launch, and continuous improvement.Create polished, high-performance interfaces using React and TypeScript, enhanced with TailwindCSS, ensuring seamless interactions, efficient state management, and robust error handling.Architect reusable components and design patterns to streamline development processes and enhance product quality.

Aug 22, 2025

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Senior Frontend Software Engineer

Filevine

Full-time|On-site|San Francisco

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.

Jan 20, 2026

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Senior Frontend Software Engineer

Hinge Health

Full-time|On-site|San Francisco-HQ

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.

Apr 16, 2026

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Senior Frontend Software Engineer

3Y Health

Full-time|On-site|San Francisco Office

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.

Sep 2, 2025

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Senior Frontend Software Engineer

HeartFlow, Inc.

Full-time|On-site|San Francisco, California

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.

Apr 15, 2026

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Senior Frontend Software Engineer

Comfy Organization

Full-time|On-site|San Francisco

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.

May 29, 2025

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Senior Frontend Software Engineer

prosper

Full-time|On-site|San Francisco, CA

Join our team at prosper as a Senior Frontend Software Engineer, where you will play a crucial role in crafting user-centric web applications that enhance our customer experience. You will collaborate with cross-functional teams to design, implement, and maintain high-quality software solutions. This is an exciting opportunity to leverage your expertise in frontend technologies while contributing to the growth and success of our innovative company.

May 1, 2026

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Senior Frontend Software Engineer - Signup & Activation

Scribd Inc.

Full-time|$120K/yr - $227.5K/yr|On-site|San Francisco

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.

Feb 20, 2026

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Senior Frontend Software Engineer

Siftstack

Full-time|$170K/yr - $220K/yr|On-site|San Francisco, CA

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.

Oct 27, 2025

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Senior Frontend Software Engineer

Brex

Full-time|$192K/yr - $240K/yr|Hybrid|San Francisco, California, United States

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!

Apr 9, 2026

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Staff Software Engineer - Frontend

Sigma Computing

Full-time|$200K/yr - $270K/yr|On-site|San Francisco, CA

Role Overview Sigma Computing builds a high-performance platform focused on modern data architecture. The engineering team is growing and looking for a Staff Software Engineer - Frontend in San Francisco, CA. This role centers on developing features that make data accessible and usable for a wide range of users. What You Will Do Design and build responsive user interfaces using current front-end technologies. Take ownership of major product components from early concept through launch. Work closely with product managers, UX designers, and backend engineers to introduce new features and technologies that improve the product and simplify the experience for users without technical backgrounds. Apply expertise in front-end development to create visualizations for structured and unstructured data. Develop methods to boost application performance and interactivity. Work with modern frontend frameworks, including React, GraphQL, TypeScript, and Node.js.

Apr 25, 2026

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Senior Software Engineer with Frontend Expertise

Kira

Full-time|$170K/yr - $230K/yr|On-site|San Francisco

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.

Feb 11, 2026

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Staff Software Engineer - Frontend at 3Y Health | San Francisco

3Y Health

Full-time|On-site|San Francisco Office

About UsAt 3Y Health, we are revolutionizing the healthcare landscape with our innovative AI-driven software designed to empower healthcare providers. Our mission is to streamline the staggering administrative complexities that consume 40% of the industry's revenue. Our comprehensive platform opens doors for clinician entrepreneurs, providing the tools they need to establish, manage, and expand their private practices. By integrating cutting-edge AI and automation, we help practitioners reclaim their valuable time, cultivate successful businesses, and enhance the quality of care in their communities. With over $200M in funding from prestigious investors such as Founders Fund, General Catalyst, Softbank, and 8VC, we are poised for significant growth.About the RoleWe are on the lookout for a talented Frontend Engineer to join our dynamic team, focused on crafting intuitive and high-performance user interfaces that resonate with our providers. The ideal candidate is a product-oriented engineer with extensive expertise in modern frontend technologies (React, TypeScript) and a keen eye for design and user interaction. You value clean, modular code and thrive in collaborative environments with design and product teams to bring sophisticated user experiences to fruition. Candidates with light full-stack capabilities who can tackle backend adjustments to facilitate team progress will be given special consideration. We are particularly interested in individuals who have experience as a founding engineer or entrepreneur, and who possess a strong inclination towards ownership, agility, and continuous improvement.As a Frontend Engineer, you will play a crucial role in shaping frontend architecture decisions and collaborating across engineering, design, and product teams. Your responsibilities will include delivering scalable, modular UI components, collaborating on product development, and enhancing the user experience of our AI-first platform.ResponsibilitiesDevelop and maintain reusable, performant, and accessible frontend components utilizing React and TypeScript.Work closely with designers to create stunning, user-centered experiences.Ensure high UX standards and continually seek improvements in usability.Collaborate with backend engineers to define API interfaces and implement backend logic when necessary.Guide frontend architectural decisions and advocate for best practices in code modularity and maintainability.Engage in code reviews, technical discussions, and team rituals.Adopt a founder’s mindset—proactive, product-focused, and ready to take ownership.

Aug 19, 2025

Staff Software Engineer - Frontend at 3Y Health | San Francisco

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