110 ui developer jobs at 77 companies in Fairfax, CA
1mo
Save
Mark Applied
Hide
UI Developer
Mountain View or Walnut Creek
$49-$59/hr OnsiteFull Time
3+ YOE3+ years frontend experience with HTML5/CSS3/JavaScript and React; experience building responsive UIs, integrating REST/GraphQL APIs, using build/test tooling, and translating Figma designs to accessible components; TypeScript preferred.
HTML5, CSS3, JavaScript (ES6+), React.js, TypeScript, Flexbox, CSS Grid, Material UI, Tailwind CSS, RESTful, GraphQL, OAuth 2.0, JWT, Webpack, Vite, Jest, React Testing Library, Cypress, Git, Figma, WCAG 2.1, Core Web Vitals, Next.js, Redux
2mo
Save
Mark Applied
Hide
Software Engineer, UI
San Francisco, California, United States
$135k-$240k/yr OnsiteFull Time
Experience building polished UI with TypeScript, React, and CSS; portfolio demonstrating visual craft; experience with animation systems (Framer Motion, CSS transitions); startup/founding experience preferred.
TypeScript, React, CSS, Framer Motion, CSS transitions
1mo
Save
Mark Applied
Hide
UI Engineer
Salt Lake City or Seattle or San Francisco or New York City or London or Madrid or Singapore
$110k-$170k/yr HybridFull Time
3+ YOE3+ years building cloud applications; strong front-end experience with React, TypeScript, HTML/CSS/JavaScript; experience with design systems, component libraries, cloud storage and AWS; BS in CS or equivalent preferred; AI experience a plus.
HTML, CSS, JavaScript, TypeScript, React, NodeJS, Python, SQL, Blob, Document, Search, AWS, DataDog, GitHub CI/CD
2mo
Save
Mark Applied
Hide
UI Engineer
San Francisco, California, United States
$180k-$310k/yr HybridFull Time
3+ YOE3–5+ years frontend engineering with React, CSS mastery, design systems, accessibility, and performance focus.
React, CSS, Design Systems, Browser Debugging, Accessibility
2mo
Save
Mark Applied
Hide
Embedded UI Engineer - Alarms
San Mateo, California, United States
$130k-$280k/yr OnsiteFull Time
6+ YOE6+ years software engineering; strong Android embedded experience; shipped embedded UI products; optimize performance on constrained hardware.
Android, LVGL, Qt, Linux
1mo
Save
Mark Applied
Hide
UI Engineer - Full-Stack (React/TypeScript, Python)
San Francisco, California, United States
$140k-$320k/yr OnsiteFull Time
Strong production experience with React and TypeScript, comfortable working with Python backends, API design, frontend architecture, performance, testing, and collaborating with designers.
React, TypeScript, Python, Kubernetes, LLM, CLI
1mo
Save
Mark Applied
Hide
Member of Technical Staff - UX/UI
Palo Alto, California, United States
OnsiteFull Time
Expert React and TypeScript frontend skills with full-stack foundation (Node.js or Python), experience shipping scalable product UIs, AI fluency, product partnership, and mentoring ability.
React, TypeScript, Node.js, Python, D3
2mo
Save
Mark Applied
Hide
Product Engineer (UI-Focused) — Horizon
San Francisco or New York City or Washington or Boston or Los Angeles or Seattle or Denver or Chicago or Atlanta or United States
$172k-$242k/yr RemoteFull Time
5+ YOE5+ years full-stack engineering with front-end focus; strong proficiency in TypeScript and React; experience shipping user-facing products; familiarity with Model Context Protocol and AI/LLM tooling; on-call/incident participation.
Python, TypeScript, React, TanStack, Model Context Protocol (MCP), Claude Code, Codex
3mo
Save
Mark Applied
Hide
Design Engineer
San Francisco, California, United States
OnsiteFull Time
Design Engineer with frontend UI/UX ownership, shipping 0-to-1 products, and familiarity with AI tools.
UI/UX, Design Systems, AI tools
2w
Save
Mark Applied
Hide
Design Engineer
San Francisco, California, United States
OnsiteFull Time
Experienced front-end/design engineer with TypeScript, React, CSS and UI/component expertise; strong product taste, prototyping speed, systems thinking, and experience building complex visualizations or developer UIs.
TypeScript, React, CSS
3mo
Save
Mark Applied
Hide
Senior Software Engineer
Mountain View or Austin or Warren
$138k-$175k/yr HybridFull Time
5+ YOE5+ years embedded or system-level C++ software; ECU/CAN/LIN/Ethernet experience; strong UI/UX and performance emphasis; Bachelor’s in CS/EE or related field.
C++, RTOS, Android, Unreal Engine, CANoe, VehicleSpy, CAN, Ethernet, UI frameworks, 3D display rendering
1mo
Save
Mark Applied
Hide
Senior Software Engineer, Operator Tools
Byron, California, United States
$180k-$275k/yr RemoteFull Time
5+ YOE5+ years software development with strong C++ and/or Python, desktop (Qt/Electron) and web UI experience, telemetry/embedded integration, protocol parsing, and building UIs for operational use.
C++, Python, Qt, Electron, React, Git, GitHub, MAVLink, UDP, serial
2mo
Save
Mark Applied
Hide
Software Engineer
Dublin or Atlanta or Remote Location
$90k-$179k/yr HybridFull Time
2+ YOEBachelor’s degree in CS/Engineering or equivalent; 2+ years in full-stack development; Java/Python; UI frameworks (Angular/React); SDLC experience.
Java, Python, Angular, React, REST, gRPC, GraphQL, Oracle, MySQL, PostgreSQL, GitHub Copilot, Claude Code
2mo
Save
Mark Applied
Hide
Software Engineer, AI Workflows
San Francisco or New York
$213k-$250k/yr HybridFull Time
Experience building AI products with LLMs and embeddings; strong UI to data model understanding; relational databases; end-to-end product development.
React, TypeScript, Node.js, PostgreSQL
3mo
Save
Mark Applied
Hide
Staff iOS Engineer, Growth
Mountain View or San Francisco
$251k-$310k/yr HybridFull Time
6+ YOE6+ years in mobile app development, SwiftUI experience, BS/MS in CS or related field, strong UI focus, collaboration with product and robotics teams.
SwiftUI, UIKit, CoreAnimation, gRPC, Protobuf, Bluetooth, C++
3w
Save
Mark Applied
Hide
Staff Design Engineer
Bellevue or Menlo Park
$173k-$248k/yr HybridFull Time
10+ YOE10+ years building high-quality UIs; strong web development with React JS, CSS3, JS/Typescript, NodeJS; experience with design systems, accessibility, portfolio, and collaboration skills.
React JS, CSS3, JS, Typescript, NodeJS
3mo
Save
Mark Applied
Hide
Principal Engineer, Studio Builder Tools
San Mateo, California, United States
$345k-$399k/yr OnsiteFull Time
8+ YOE8+ years in developing and deploying user-facing applications; Bachelor's in Computer Science or related field; 3+ years in C++ or similar language; UI framework experience a plus; experience with developer/artist tools.
C++, React, Cocoa, WPF, 3D editors, design tools
2mo
Save
Mark Applied
Hide
Design Engineer
Redwood City, California, United States
$200k-$300k/yr OnsiteFull Time
Strong frontend, design systems, React + TypeScript, Figma, and UI component library experience.
React, TypeScript, HTML, CSS, Figma, Storybook
2d
Save
Mark Applied
Hide
Founding Engineer
San Francisco, California, United States
$200k-$300k/yr OnsiteFull Time
3+ YOERequires 3–7 years of full-stack software development, 0-to-1 startup product-building experience, frontend and backend proficiency, a CS degree from a top-20 university, product sense, and U.S. work authorization without sponsorship.
UI
1w
Save
Mark Applied
Hide
Sr Design Engineer, Spectrum Desktop
San Francisco or Seattle or San Jose
$139k-$258k/yr OnsiteFull Time
5+ YOE5+ years software engineering with strong C++ and systems-design experience; experience with UI frameworks, cross-platform Windows/macOS development, and strong communication and design sensibility.
C++, Objective-C, JavaScript/TypeScript, Python
Explore Jobs