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

Build and maintain web platforms for restaurant discovery, onboarding, and data quality. Collaborate with engineers, PMs, designers, and researchers; work full-stack when needed; ship impactful features; run experiments with guests and restaurants; champion development, deployment, and quality best practices.

You will own frontend systems, lead initiatives in UX and performance, uphold standards, and mentor engineers to enhance quality.

Drive front-end development for customer-facing web and mobile experiences. Lead feature delivery from concept to production using React, Next.js, TypeScript, Svelte, and Tailwind. Troubleshoot integrations, write unit and integration tests, produce technical documentation, collaborate with product/design/data, and use AI tooling (preferably Claude) to accelerate design and implementation.

Collaborate with UX and Game Design to define web features; write and test front-end code (JavaScript, HTML, CSS); evaluate and select web technologies with platform team; define and uphold web development practices, optimize performance, and ensure security standards.

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

Join Klarity as an AI Frontend Engineer to build production UI components, collaborating with senior engineers and designers, while learning about AI-powered workflows and modern frontend development.

The Staff AI Frontend Engineer will architect scalable front-end systems, own user-facing features, bridge AI capabilities with user experiences, and use AI tools to prototype design concepts.

The Senior AI Frontend Engineer will design and implement user interfaces using modern web technologies, ensuring intuitive and elegant user experiences while owning features end-to-end, collaborating across teams to bridge AI capabilities with frontend design.

Build and ship cross-platform front-end features for Box AI chat and agentic experiences using React and React Native. Integrate with backend APIs, contribute to CI/CD and deployment, run experiments (A/B tests/feature flags), and uphold accessibility, performance, and quality standards. Participate in on-call rotation and collaborate across teams to translate AI model capabilities into customer value.

Develop user-friendly interfaces and tools for B2B SaaS applications, focusing on user experience and best practices in frontend development.

The Principal Frontend Engineer will architect and implement Arena's web applications, lead initiatives, mentor engineers, and enhance performance and reliability of the platform.

As a Frontend Engineer, you'll build scalable interfaces, collaborate with the team, and influence the product's technical direction.

Build and enhance AI applications for enterprises, focusing on frontend development using modern technologies like Next.js and React. Collaborate with teams to create intuitive user experiences and optimize UI performance.

As a Front-End Developer Intern, you will design and build web applications, collaborate with teams, participate in code reviews, and maintain code quality.

Build and maintain React/TypeScript UI components, pages, and data visualizations for a security/compliance platform. Extend component library, optimize performance for large datasets, implement real-time updates, collaborate with designers, backend engineers, and customers to ship high-fidelity, production-ready interfaces.

Own and build frontend experiences across Air's web platform: translate product/design needs into high-quality UI, architect and ship features, improve component design and rendering performance, maintain a scalable design system, enforce accessibility and code quality, mentor engineers, and participate in reviews and hiring.

The Frontend Engineer will develop user interfaces utilizing React and other technologies to enhance community knowledge organization and data interaction.

Build responsive, scalable web applications using Angular, HTML5, CSS3, and JavaScript. Collaborate with designers and backend teams, integrate RESTful APIs, optimize performance, maintain reusable code, participate in Agile ceremonies, and recommend front-end improvements.

Design and implement high-performance Angular frontends for AI-driven interfaces: real-time SSE/WebSocket streaming, complex state with Signals/NgRx, Chain-of-Thought visualizations, human-in-the-loop controls, performance optimization, API schema collaboration, and testing.

Build and maintain responsive, accessible, high-performance frontend applications using modern frameworks. Contribute to greenfield and legacy modernization, follow code quality best practices, leverage AI-assisted tools and LLM prompting, collaborate with product, design, and backend teams, and ensure reusable components, cross-browser compatibility, and performance optimization.

Build high-performance, real-time Angular UIs for AI-driven agent workflows. Implement SSE/WebSocket streaming, complex state management (Signals/NgRx), observability dashboards, HITL controls, performance optimizations, and collaborate on API/JSON schema design with backend and AI engineers.

Senior Front End Developer who architects REST APIs (Java/Node.js) and builds Angular-based SPA configurations. Own end-to-end integration and onboarding flows, manage CI/CD with Jenkins and Sonar, implement QA automation, and monitor production with Datadog and Splunk. Lead troubleshooting, test matrices, and release management to ensure production readiness.

Build high-performance, real-time Angular frontends for AI-driven agent interfaces. Implement SSE/WebSockets streaming, complex state management with Signals/NgRx, visualizations of agent chain-of-thought, human-in-the-loop controls, performance optimizations, and collaborate with backend/AI engineers on API schemas.

Own frontend architecture and platform for a unified web console. Build identity-adjacent systems (auth, sessions, CORS/CSRF protections), shared infra and tooling, testing strategies, and enable other teams to ship reliable UIs. Collaborate across design, growth, and infrastructure; participate in on-call rotation.

Build and maintain responsive, high-performance web applications using React. Collaborate with designers and backend engineers to implement features, integrate REST/GraphQL APIs, optimize UI performance, and write clean, maintainable code using JavaScript/TypeScript and modern CSS frameworks.