Top Front End Developer Jobs in San Francisco Bay Area, CA

Build and maintain user-friendly web interfaces for expense and procurement products using React and TypeScript. Implement micro frontend patterns, integrate with backend services via Apollo/GraphQL, collaborate with designers and PMs on shared UI components and design systems, participate in code reviews, triage bugs, and improve frontend engineering standards and observability.

Build scalable, high-performance frontend solutions for growth funnels, landing pages, and marketing campaigns using React and TypeScript. Drive experimentation and A/B testing, collaborate with product, design, marketing and data teams to optimize user journeys, prototype ideas rapidly, and uphold frontend best practices, security, and compliance to improve acquisition and engagement.

As a Staff Frontend Engineer, you'll architect scalable frontend components, lead technical direction, and enhance developer workflows while integrating AI tools at GlossGenius.

Mochi Health seeks a Senior Front-End Engineer to build and own complex healthcare interfaces, ensuring a seamless user experience and managing client-side architecture. Responsibilities include collaborating with mobile teams, maintaining frontend reliability, and integrating AI into products.

Build and maintain high-performance connected-device (Roku) frontend applications. Contribute to shared client architecture, reusable frameworks, and tooling. Optimize startup, memory, responsiveness, and playback. Collaborate with product, design, QA, and engineers; participate in code reviews, troubleshooting, documentation, and mentoring to improve code quality and cross-platform consistency.

As a Front-End Software Engineer, you will build AI-powered interfaces, tackle complex design problems, and collaborate across teams to enhance user experiences. Responsibilities include mentoring, implementing responsive UI, and engaging with AI technologies.

Build and ship polished, accessible, high-performance front-end features for Deepgram's Console and Playground. Partner with product and design to translate ideas into incremental releases, improve internal tools, and uphold front-end engineering standards through code reviews and design discussions.

Build and own end-to-end full-stack systems for AI-powered agentic trading across web and React Native mobile. Implement real-time, low-latency UIs and Go backend services, integrate streaming AI/ML features and market data, drive architecture and code quality, and collaborate with AI/ML, design, and product teams to ship production-ready features used by millions.

Build, maintain, and optimize scalable front-end systems and web experiences. Translate Figma designs into reusable components, support large-scale site migrations, improve performance, accessibility, and SEO, and work with cross-functional teams using modern workflows and AI-assisted tools.

Lead frontend-leaning full-stack implementation work for carrier and enterprise integrations: architect reusable UI and API layers, author RFCs, guide technical delivery, enforce testing and security best practices, and partner with cross-functional teams to scope and ship production integrations.

Design and develop frontend interfaces using React and Next.js, lead projects, and enhance user experiences through collaboration with founding team and users.

This role involves leading web platform initiatives, mentoring senior engineers, architecting web applications, and implementing technical strategies for improved performance.

Architect and build a high-performance, low-latency trading web platform. Integrate real-time market data and execution workflows, collaborate cross-functionally on large initiatives, and deliver scalable, performant, user-focused frontend applications with strong attention to API design, tooling, and developer experience.

Lead front-end technical strategy for Coinbase Advanced trading platform: define and execute a scalable roadmap, deliver a low-latency interface across web and mobile, mentor engineers, anchor complex projects, and ensure high standards for code quality and system design.

Build and own end-to-end frontend experiences for Coinbase card products across web and mobile. Ship high-scale consumer features, improve payment flow performance and SLOs, reduce latency and CX contacts, mentor engineers, and collaborate with product, design, and backend teams to deliver reliable, user-focused card functionality.

Lead frontend and full‑stack projects across Marimo's open-source ecosystem. Design simple, powerful editor experiences, build performant data visualizations and editor extensions, engage with the community, triage issues, and balance community needs with product roadmap.

Lead the design and development of user interfaces for AI interactions, collaborating with engineers and researchers to create seamless user experiences.

Design, build, and own front-end features across the full lifecycle. Deliver high-quality, tested UI experiences, collaborate with product and UX, drive cross-component changes, mentor peers, and participate in hiring while working in distributed systems.

As a Software Engineer, you will lead frontend projects, enhance user experience, and collaborate on innovative AI-driven products.

Build and maintain responsive, accessible frontend interfaces using React and TypeScript. Collaborate with product, design, and backend teams to launch performant, scalable UIs, create reusable component libraries, define APIs, mentor engineers, and drive frontend best practices.

Build polished, performant frontend interfaces for audio-data products. Ship production-grade UI features, surface LLM/DSP-driven insights, iterate with researchers and operations, and scale interfaces for thousands of users.

Develop and enhance user-facing features for an LLM observability platform using React and TypeScript. Build reusable components and front-end libraries, translate designs into performant UI code, optimize cross-device/browser performance, and collaborate with backend engineers and designers to improve usability.

Convert designs into a user-friendly, responsive single-page SaaS portal. Maintain and add front-end features, ensure cross-browser/platform compatibility, and collaborate with the development team to deliver clean, accessible UI.

Build intuitive, responsive, and performant web applications for a real-estate decarbonization platform. Translate designs into accessible UIs, handle errors gracefully, write automated tests, collaborate with product and design, and improve frontend code quality and maintainability.

Build and own complex frontend features using Vue 3 and TypeScript while developing the Python services and APIs that power them. Improve performance, accessibility, testing, CI/CD, and observability; collaborate with product and design; mentor engineers and apply AI-assisted development tools responsibly to accelerate productivity and maintain quality and security.