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

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.

Own and deliver major consumer-facing web and mobile features from technical design through experimentation and launch. Drive frontend architecture, performance, accessibility, testing, observability, and design-system standards. Build conversion-critical discovery, seat-selection, and checkout experiences, interpret A/B tests, mentor engineers, and collaborate with product, design, backend, mobile, and platform teams.

Build and improve Kikoff’s flagship credit-building product as a senior frontend engineer. Develop features that increase retention, engagement, and revenue while collaborating closely with product managers, designers, and data scientists. Explore and scope new opportunities, analyze data for business decisions, solve problems beyond your expertise, and deliver measurable customer impact using SolidJS or React.

Develop and support interactive enterprise planning, reporting, and analytics web applications using SAP Analytics Cloud and front-end technologies. Responsibilities include building UI/UX components, reviewing requirements and designs, consuming REST APIs, optimizing performance and scalability, debugging, documenting changes, participating in code reviews, and collaborating with technical teams. The role supports a federal customer remotely and requires Public Trust clearance and U.S. citizenship.

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 maintain customer-facing frontend experiences across vehicle configuration, trade-in, financing, leasing, and delivery. Develop accessible, performant, well-tested React and TypeScript applications; integrate APIs and third-party services; optimize Core Web Vitals; contribute to component libraries and design systems; and own features from technical design through production. Collaborate with product, design, and backend teams while participating in reviews and applying AI-assisted development practices.

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 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.

Build and own high-performance, customer-facing frontend applications using React, Redux, and TypeScript. Integrate AI-powered features, establish AI development guardrails, optimize scalability and reliability, and maintain design systems, testing standards, and continuous delivery practices. Collaborate with product, design, and backend teams while mentoring engineers and driving features from concept through production.

Build and scale data-dense frontend interfaces that help compensation teams benchmark roles, price jobs, and make pay decisions. The role owns technical strategy and delivery outcomes, emphasizing performance, accessibility, interaction quality, reusable systems, and thoughtful prioritization. It also involves mentoring engineers, clarifying ambiguous problems, and contributing effectively in a fast-paced environment.

Own frontend domains end to end, including architecture, implementation, testing, production quality, performance, accessibility, and security. Set technical direction, design reusable component systems, establish testing strategies, diagnose complex browser and production issues, and partner with Product, Design, QA, and engineering teams. Mentor engineers, review consequential changes, and use AI-first development practices while maintaining accountability for shipped software.

Own frontend architecture for React and TypeScript applications supporting complex research and analytics workflows. Build performant, accessible interfaces; establish standards for performance, testing, accessibility, and CI quality gates; evolve shared component libraries and design systems; partner on API contracts; address technical debt; contribute to Django services; and mentor engineers while leading department-wide technical initiatives.

Lead frontend architecture and development for an AI-powered voice platform. Build responsive dashboards and reusable components, integrate real-time WebSocket and WebRTC voice capabilities, consume AI backend APIs, manage complex application state, and optimize performance, accessibility, and reliability. Mentor frontend developers, establish coding standards, collaborate with designers and backend teams, and develop prototypes, testing strategies, and production-ready interfaces.

Leads the design and development of complex frontend systems and product features using Angular and React. Architects scalable frontend patterns, improves performance and engineering velocity, drives testing and code-quality practices, and leads major technical initiatives. Partners cross-functionally with backend, product, design, integrations, and QA; makes technical decisions, mentors engineers, and advances frontend architecture and collaboration across teams.

Build and improve ClickUp’s core product experiences using Angular and React. Responsibilities include architecting reusable frontend code, collaborating with product, design, backend, integrations, and QA teams, improving performance and usability, maintaining unit and integration tests, resolving complex bugs, following state-management patterns, and mentoring teammates in a fast-paced environment.

Design and build high-performance, responsive frontend web and desktop applications (React/TypeScript/Electron). Drive frontend architecture and implementation decisions, integrate real-time bidirectional data (WebSockets), optimize for speed/security/scale, collaborate with UI/UX and backend teams, and mentor engineers to improve frontend engineering practices.

Founding front-end engineer to design and build Flick's editor UI (canvas, timeline, node graph, playback). Lead architecture, prototype creative workflows, optimize complex UX interactions, establish code quality and performance practices, collaborate with design/product/AI backend, and drive key technical and product decisions.

Lead frontend development for Sift Agents, building high-performance, agentic AI user experiences. Own product area from customer discovery through shipping, design interaction patterns for streaming and long-running agent tasks, render agent findings alongside large telemetry datasets, optimize browser performance (Web Workers, OPFS, WebAssembly), contribute to component library, and collaborate with backend engineers on API design.

Develop hybrid mobile applications with strong knowledge of AngularJS, HTML, and CSS. Requires at least 8 years of experience and current work on mobile apps.

As a Frontend Software Engineer, you'll own the frontend experience, lead design systems, collaborate with design teams, maintain UI components, and ensure high performance, accessibility, and code quality, while also integrating with backend services.

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.

The Staff Frontend Software Engineer will design and build critical infrastructure for a secure AI platform, lead development of enterprise features, and ensure system reliability for legal applications.

The role involves designing and developing software solutions, unit testing, and collaborating with various teams to improve customer experience using rich data sets.

The Front End Java engineer will design and develop software using Java and JavaScript, with expertise in MVC frameworks like Backbone.js, focusing on the Unified project's Browse front end pages.