Front End Developer Jobs in Sunnyvale, CA

Join an early-stage B2B enterprise AI startup as a frontend or frontend-leaning fullstack engineer. Build user-facing products and standalone UI component libraries using React, TypeScript, and Next.js. Design and architect frontend features from scratch, handle fullstack responsibilities as needed, solve challenging technical problems, and contribute as a core member of the growing team in a hybrid Palo Alto office.

Own and architect the frontend for Orkes' Conductor workflow builder and control-plane tools. Build high-performance, observable UI infrastructure (canvas/node-graph editors, dashboards), lead frontend strategy and design systems, shape product/UX, ensure testing/accessibility/performance standards, and collaborate on API/BFF and backend contracts. Mentor teams and raise engineering craft, with some backend/full-stack involvement as needed.

Lead development of performant, accessible, and elegant frontend experiences for AI-powered web apps. Own end-to-end implementation, frontend architecture, design-system evolution, performance optimization, analytics instrumentation, CI/CD, and integration of AI/LLM capabilities in collaboration with product, design, and research teams.

The Front End Developer will design UI frameworks and implement user experiences, converting UX requirements into high-quality HTML, JS, and CSS, while collaborating with designers and backend engineers.

The Front End Developer will design UI frameworks, collaborate with UX designers and backend engineers, and convert UX requirements into HTML, JavaScript, and CSS.

The role involves developing high-quality, low-latency user experiences for web applications, collaborating with various teams, and utilizing web technologies effectively.

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.

Build scalable, accessible frontend components and UX for an AI-native data platform using React and Next.js. Implement dashboards, agent interfaces, and multi-tenant admin panels; integrate real-time and streaming data, APIs, and visualize high-dimensional data. Contribute to component libraries, design systems, and ship production-ready, responsive features.

Senior front-end engineer responsible for developing products end-to-end, owning projects from concept through launch, and shaping company direction to drive growth across portfolio companies.

As a Senior Frontend Engineer, you'll develop UI features for the AI voice platform, working with React and TypeScript while collaborating on backend systems and leading projects from concept to launch.

Develop front-end applications utilizing WPF and web technologies. Require strong knowledge of HTML5, CSS3, and JavaScript with 5-7 years experience.

Seeking a Front-End Developer with 5-7 years of experience in development, proficient in WPF and front-end web technologies including HTML5 and CSS3.

Design and develop microarchitecture and RTL for wafer-scale AI chips. Lead functional specification, RTL development, synthesis and front-end integration. Collaborate with physical design, verification, DFT, software and systems teams to meet PPA goals. Debug silicon-level functional, timing, and power issues and manage third-party IP and vendor interactions to deliver production silicon.

The role involves building and redesigning web applications, focusing on client-side development, UI design, and implementing scalable frameworks.

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 and implement Cheiron's frontend: own architecture, component patterns, and design system; build production-quality React/TypeScript/Tailwind UIs; solve AI-specific UX challenges (streaming, citations, long-running tasks); perform design QA; review and mentor engineers; collaborate across Product and Design to deliver polished, performant interfaces.

Design and build high-performance React applications, lead technical design for features, improve frontend reliability, and mentor engineers.