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

Build and refine front-end experiences for web and mobile: onboarding, checkout, gallery features, design system and enterprise dashboard. Collaborate closely with designers and PMs, ship fast, maintain aesthetic quality, and iterate with user feedback using React, Next.js and TypeScript.

Build elegant, responsive frontend features and visualizations using modern frameworks. Own substantial product areas from design to launch, collaborate with product, UX, and backend teams, and optimize performance and interactivity for large-scale data applications.

Implement test-driven frontend features from visual designs using AngularJS/JavaScript. Integrate UI with RESTful backends, refactor modules, perform peer code reviews, and collaborate with backend, QA, and support teams in an Agile environment.

Design and build user-facing web interfaces from mockups using HTML, CSS, and JavaScript. Implement interactive features, ensure responsive and accessible cross-browser experiences, optimize performance, test and debug code, maintain existing applications, and collaborate with back-end developers for integration.

Lead end-to-end implementation of high-fidelity, performant, and accessible frontend features for a realtime collaborative visual canvas. Translate designs into polished interactions, optimize performance and accessibility, collaborate with PMs, designers, and backend engineers, and shape frontend best practices and design systems.

Build and implement user-facing web interfaces from designs using HTML, CSS, and JavaScript. Create interactive, responsive, and accessible features, optimize performance, ensure cross-browser compatibility, test and debug code, maintain existing applications, and collaborate with back-end developers for integration.

Own and build the JTX frontend across web and mobile: real-time order books, charts, order entry, positions, wallet/signing flows. Optimize for low-latency streaming data, performance, security, and cross-platform consistency while making long-term architectural decisions and shipping rapidly.

Lead design and implementation of scalable, performant frontend architectures and reusable UI components for consumer apps. Own core user journeys, optimize performance and accessibility, set frontend standards, mentor engineers, drive architectural decisions, and use AI-first tooling to ship features at scale.

As a Senior Software Engineer, you'll lead projects, enhance product quality, and collaborate on technical strategies while building user-facing features.

The Senior Software Engineer will lead frontend development, define architecture, own UX for workflows, mentor engineers, and collaborate with design and backend teams.

As a Senior Frontend Engineer, you'll architect and build payment experiences, maintain payment dashboards, and mentor engineers while driving frontend architecture decisions.

Lead development of interactive React front-ends with Chakra UI and Mapbox, build data visualizations (Plotly/ApexCharts), optimize performance for large and real-time datasets, enforce front-end best practices, mentor engineers, and collaborate with product, design, and backend teams to deliver accessible, responsive interfaces.

Design and develop web applications, mentor teammates, shape architectural decisions, write clean code, conduct testing, and troubleshoot issues.

Build and maintain a polished web portal for a premium banking and travel rewards platform using React. Collaborate with designers and engineers on feature scope and product direction, participate in code and design reviews, write well-architected code, tests, and documentation, establish frontend architecture standards, and mentor team members. The role also involves database and API integrations in a fully remote startup environment.

As a Senior Frontend Engineer, you'll lead the development of frontend applications, crafting seamless user experiences and driving project implementation alongside cross-functional teams.

Develop user interfaces for web applications, collaborate with teams, mentor engineers, and ensure code quality and performance in a fast-paced environment.

Lead frontend technical direction, mentor engineers, drive impact on company growth, and define scalable web applications using technologies like React and Next.js.

Build and optimize high-volume web applications using .NET, Node, React and AWS; maintain and improve existing systems; troubleshoot bugs; perform code reviews; mentor junior engineers; participate in on-call rotation; and improve scalability and performance.

Build high-performance data visualization interfaces and reusable component libraries for large real-time telemetry datasets. Collaborate on API design with backend teams, optimize web performance, write maintainable code, and participate in technical design discussions.

Lead frontend architecture and technical strategy for a collaborative work platform. Build scalable React/TypeScript applications, design systems, real-time collaboration (sync, offline, serialization), optimize performance and observability, mentor engineers, and collaborate with Product, Design, and Backend teams to deliver high-quality, maintainable user experiences.

The Senior / Staff Frontend Engineer will design and implement high-quality UI components for a web application, focusing on data visualization and collaboration with design and backend teams. Responsibilities include mentoring, shaping frontend strategy, and maintaining best development practices.

The Senior Software Engineer will enhance the platform through collaboration, technical leadership, and by developing high-quality frontend components, ensuring best practices and performance.

Develop and maintain web application user interfaces using Vaadin and front-end technologies. Apply UI fundamentals (including Fitts' law), refactor enterprise applications, collaborate with clients, and mentor/train other front-end developers.

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.

Build, sharpen, and scale real-time frontend features for an AI-native labor orchestration platform. Ship production React/TypeScript UIs, maintain component libraries, ensure testing, performance, accessibility, and cross-browser compatibility while working closely with core engineering and AI teams.