Front End Developer Jobs in Sunnyvale, CA

Lead development of Moveworks' fullstack web applications and AI-powered agent builder experiences. Design scalable UI frameworks, web technology stacks, authentication, event tracking, design systems, and APIs. Collaborate with product, machine learning, and engineering teams to improve user experience and customer adoption while delivering reliable, modular solutions for global enterprise customers.

Leads the design and development of scalable full-stack software using Node.js, TypeScript, React, and AWS. Builds offline-first progressive web applications, REST and GraphQL APIs, event-driven services, distributed synchronization systems, and reliable data persistence solutions. Ensures data integrity, scalability, testing, and regulatory alignment while collaborating with product, design, security, and compliance teams. Provides technical mentorship and promotes engineering best practices.

The Senior Fullstack/Frontend Engineer will architect and implement scalable frontend systems for AV mapping applications, collaborating with cross-functional teams to enhance user experience and performance in autonomous driving technologies.

Verify RISC-V CPU front-end units, including instruction fetch, branch prediction, caches, TLBs, and fetch control structures. Build UVM testbenches, constrained-random and directed stimulus, checkers, transactors, predictors, scoreboards, and C++ reference models. Execute verification plans, track functional and code coverage, and resolve microarchitectural edge cases with RTL, performance modeling, and software teams using simulation and emulation workflows.

Design, build, and maintain web interfaces and core services for Clover Gift Cards across POS, web, and consumer portals. Own features end-to-end, write automated tests, troubleshoot production issues, collaborate cross-functionally, and participate in on-call rotation to ensure platform reliability and high availability.

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

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.

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.

Architect, design and implement features for RISC-V CPU core generators using Chisel, with responsibilities in verification and performance modeling, collaborating with teams.

Design and implement CPU microarchitecture features and ISA extensions using Chisel; integrate into Chisel/FIRRTL framework; perform sandbox verification and collaborate with verification, physical implementation, and performance teams to meet frequency, area, power, and performance goals. Produce documentation and participate in collaborative design.

Develop scalable front-end systems for complex web applications, ensuring security and performance while collaborating with teams.

Maintain and enhance the FortiSwitch web GUI by locating and fixing bugs, proposing and implementing new features, writing i18n/a11y-compliant HTML/JS/CSS (TypeScript/SCSS), interfacing with backend C code, drafting functional specs, and improving performance and codebase maintainability.

Lead verification strategy and execution for CPU frontend in high-performance out-of-order cores. Define test plans, checkers, assertions, coverage, and stimulus for branch prediction, instruction fetch, redirects, recovery, and MMU/ITLB interactions. Partner with architects, RTL, performance, and verification teams, apply simulation, formal, and emulation methods, drive block- and core-level signoff, mentor engineers, and build reusable DV infrastructure and methodology.

Own and build complex frontend user experiences for an AI-native cybersecurity platform. Design performant interfaces, visualizations, and dashboards for security analysts, define frontend architecture and standards, collaborate with product/backend/AI teams, and integrate AI to improve investigation and response workflows while ensuring scalability and maintainability.

Lead development of AI-powered enterprise platforms, focusing on full-stack web development, UI/UX design, and data visualization.

The Sr. Front-end Engineer will work on search and category pages, requiring strong JavaScript and React.JS skills with 3-4 years of experience.

Work with ASIC Infrastructure to enhance design productivity, deploy AI toolsets at scale, and improve CI systems while solving complex issues.

Join Ema as a Software Engineer to design and develop user interfaces for web applications, collaborating with product managers and UX designers, and integrating APIs.

Develop user-facing features and create frontend infrastructure using React.js and TypeScript, collaborating with product designers and backend engineers.

Build, maintain, and automate front-end compilation, synthesis, and emulation flows. Debug and triage compilation/synthesis regressions, collaborate with RTL designers and EDA vendors, improve performance, reliability, and observability, and apply AI techniques to automate failure classification and root-cause analysis.

Build and architect user-facing products and reusable UI component libraries using React, TypeScript, and Next.js. Design frontend systems, solve complex technical problems, and take on full-stack responsibilities at an early-stage, hybrid Palo Alto team.

Develop and modify custom Jive templates for Jive 6.0 using Soy and Freemarker. Translate requirements and wireframes into front-end code (JavaScript), ensuring attention to detail and clear communication.

Design and implement responsive front-end interfaces using HTML, CSS, and JavaScript. Build UIs with JS libraries (jQuery, Backbone), integrate with web services, apply automation and test-driven development, and deliver excellent UX with strong communication.

Develop and maintain responsive, fluid UI using Angular.js, Node.js, advanced CSS and HTML5. Work independently on front-end features, delivering high-quality, production-ready interfaces. Must be hands-on and available to work through December holidays. Contract role requiring extensive UI experience.