Top Senior Front-End Engineer Jobs in San Francisco, CA

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 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.

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, 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.

Own and build clinician-facing mobile and web frontends: improve UX, robustness, and performance. Architect scalable, offline-first interfaces; implement real-time voice/audio and deep device integrations; collaborate with Product Design; establish testing, monitoring, and best practices. Ship production mobile apps and modern web dashboards used in unreliable connectivity environments.

As a Senior Frontend Engineer, you'll design user interfaces, collaborate with teams, architect scalable solutions, and drive frontend best practices.

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.

Design and build responsive, high-performance front-end interfaces for AI-driven finance workflows. Translate complex data into clear visualizations, balance automation with human control, collaborate with backend and AI teams, and own frontend architecture and design system standards.

As a Senior Frontend Engineer, you'll lead technical direction for products, maintain design systems, collaborate across teams, and mentor engineers.

Seeking a Senior Frontend Engineer with 5-7 years of experience to lead development, design systems, and build user-friendly interfaces.

Design, build, and optimize responsive, high-performance front-end interfaces for a Web3 DEX using modern JavaScript frameworks and TypeScript. Collaborate with designers, product, and back-end teams to integrate blockchain APIs and smart contracts, mentor junior developers, troubleshoot issues, and contribute to mobile-first/PWA development while ensuring scalability and maintainability.

Build the realtime, HIPAA-compliant messaging and collaboration frontend ('Pulse') that makes an AI colleague feel human. Implement complex interactive data visualizations, micro-interactions, and high-performance accessible interfaces. Work embedded with product and design, own UI quality, iterate on AI-driven specs, and deliver production frontend experiences clinicians will trust.

Design and build performant, accessible frontend solutions across web apps, email campaigns, kiosks, and interactive experiences. Collaborate with UX and backend teams, write maintainable tested code, drive test automation and performance optimization, maintain codebases, and mentor junior engineers.

Lead the design and implementation of a flagship product, define technology best-practices, and mentor the product team while working with rich datasets from Fortune 500 clients.

Build and own responsive, high-performance React + TypeScript web applications. Design frontend architecture, reusable components, state management, and data-fetching. Collaborate with product and backend teams, optimize performance and accessibility, and improve developer tooling and workflows. Contribute across the stack when needed.

Build and ship a collaborative document platform: design and implement a rich, real-time multiplayer editor using TypeScript and React, partner with Product and Design, drive technical direction, ensure high-quality, well-tested frontend code, and iterate based on customer feedback.

Own and architect the frontend foundation for Handshake AI Enterprise: establish component system, design tokens, engineering patterns, shared libraries, and ship production-grade UIs while collaborating with AI and platform teams to ensure scalable, maintainable, high-performance enterprise deployments.

The Senior Frontend Engineer will develop and enhance the Navigator platform using Vue.js, improve user experience, maintain CI/CD workflows, and collaborate with cross-functional teams.

As the first dedicated frontend engineer, drive frontend architecture, build reusable design systems, ship React interfaces, and mentor engineers. Collaborate across teams to simplify workflows and define UI standards in a high-performance web application environment.

The Senior Frontend Engineer will develop mobile web products using React Native and TypeScript, collaborate with designers, write clean code, and integrate UI components with backend services.

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.

Build and scale high-performance, data-driven React web applications and visualization-heavy, map-based interfaces. Integrate with REST/GraphQL APIs, optimize rendering for real-time large datasets, contribute to frontend architecture, reusable UI systems, testing, and cross-functional collaboration to support mission-critical workflows.

Lead architecture and implementation of Aragorn AI's frontend: build scalable React/TypeScript applications, evolve micro-frontend architecture, develop and maintain a reusable design system, optimize performance, collaborate with design and backend teams, own CI/CD for frontend, and drive frontend technical standards and documentation.