1w
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Front-End Software Engineer (React/Typescript)
Boston or New York City
HybridFull Time
8+ YOE8+ years front-end experience with React and Typescript, experience building data-rich apps, GraphQL familiarity, strong product/UX focus, and debugging/performance skills.
React, Typescript, GraphQL
1w
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Software Engineer (TypeScript/JavaScript)
Boston or Salt Lake City or San Francisco or New York City
RemoteFull Time
5+ YOEMid/senior engineer experienced with TypeScript/JavaScript, building/maintaining JS client libraries, React/Redux front-ends, native integrations (N-API/node-addon-api/Wasm), and backend work in Python or Rust.
TypeScript, JavaScript, N-API, node-addon-api, Wasm, React, Redux, Vite, Web Workers, WebSockets, Python, Rust, REST API, Storybook, Figma, CI/CD, npm
3w
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Full Stack Engineer (React Native)
Boston, Massachusetts, United States
HybridFull Time
Extensive TypeScript experience across React Native and React, backend proficiency in Java/Scala, SQL, strong architecture, UI craft, testing/CI/CD, and scalability skills.
TypeScript, React Native, React, Java, Scala, SQL, Docker, Kubernetes, Grafana
1mo
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Senior Full Stack Engineer(React, Node.JS)
Boston, Massachusetts, United States
$155k-$175k/yr RemoteFull Time
5+ YOE5+ years software engineering experience with expertise in React and Node.js, 3+ years building RESTful services, strong JS/TypeScript tooling experience, frontend performance optimization, and excellent communication.
React, Node.js, JavaScript, TypeScript, Webpack, Vite, Babel, ESLint, Jest, Cypress, Playwright, React Native, iOS, Swift, D3, Victory, Recharts, Temporal, Aurora Postgres, Java
2mo
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Senior Front End Software Developer (AI, React, JavaScript) - Remote US
Waltham or United States
$130k-$158k/yr RemoteFull Time
3+ YOE3-4+ years frontend JavaScript/React experience; UI/UX, Agile; experience with React/TypeScript and AI tooling; remote-friendly, collaborative.
JavaScript, TypeScript, React, AI tools
3mo
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Principal Software Engineer - Frontend, Developer Experience
San Francisco or Phoenix or Denver or Austin or Jacksonville or Bridgeport or Boston or New York City or Atlanta
RemoteFull Time
5+ YOEDevelop frontend UIs with TypeScript/React; collaborate with product/design; contribute to architecture and testing; mentor colleagues.
TypeScript, React, GraphQL, Node.js
3mo
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Software Engineer II
Denver or Lexington or Waltham
$78k-$120k/yr HybridFull Time
4+ YOE4+ years frontend development with React/TypeScript; AWS experience; marketplace product exposure; strong leadership and communication.
React, TypeScript, AWS
3w
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Software Engineer (Fullstack)
New York City or Boston
$185k-$225k/yr HybridFull Time
2+ YOE2+ years professional experience; proficiency with React, TypeScript, Next.js, React Native, Postgres/Supabase, HTML/CSS (Tailwind), and AWS; experience building consumer-facing products and enterprise integrations.
React, TypeScript, Next.js, React Native, Postgres, Supabase, HTML, CSS, Tailwind, AWS
1mo
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Mobile Engineer (SF)
San Francisco or Cambridge
HybridFull Time
3+ YOE3+ years building mobile apps with production React Native experience; comfortable with Swift or Kotlin; experience with Expo, TypeScript, React, and Next.js; familiarity with backend tech (Ruby on Rails, Postgres) is a plus.
React Native, Swift, Kotlin, Expo, TypeScript, React, Next.js, Ruby on Rails, Postgres, SQL, HealthKit, EHR
2mo
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Manager I, Engineering - Data Visualization Explorations
Boston or New York
$187k-$240k/yr HybridFull Time
2+ Mgmt2+ years people management in software, strong TypeScript/JavaScript, React, excellent communication, customer-focused, ownership mindset
TypeScript, JavaScript, React
3mo
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Senior Software Engineer (Frontend, Growth)
Boston, Massachusetts, United States
$150k-$215k/yr OnsiteFull Time
5+ YOE5+ years frontend experience with TypeScript/React; Next.js; web performance; Stripe; APIs; mentorship; on-call; async collaboration.
TypeScript, React, Next.js, Cloudflare Workers, Stripe, CommerceTools, Datadog, Sentry, Amplitude
5d
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Senior Full Stack Engineer
Somerville, Massachusetts, United States
$120k-$165k/yr OnsiteFull Time
5+ YOEBachelor's or equivalent,5+ years engineering experience,proficiency in JavaScript/TypeScript and React,Python or Go preferred,experience with SQL/ORMs.
JavaScript, TypeScript, React, Python, Go, SQL, ORMs
1w
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Staff Front End Engineer
Boston or Las Vegas or Pittsburgh or United States
$172k-$229k/yr HybridFull Time
Experienced frontend engineer with strong proficiency in React, TypeScript, and Vue; expertise in frontend architecture, UX, cross-team collaboration, and mentoring.
React, TypeScript, Vue, Node, Python
2mo
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Principle Software Engineer, AI Observability & Evals Platform
Boston or San Francisco or New York City
$230k-$270k/yr OnsiteFull Time
10+ YOE10+ years backend or full-stack engineering; strong Python/Go; TypeScript/React; architectural decisions; reliable, scalable systems; mentoring.
Python, Go, TypeScript, React
2mo
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Senior Software Engineer
Boston, Massachusetts, United States
OnsiteFull Time
3+ YOE3-6 years software engineering; React, TypeScript, Python; experience with LLMs and agentic workflows; product-minded; shipping production systems.
React, TypeScript, Python, LLMs, APIs, CI/CD
1mo
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Senior Software Engineer, Mobile
Bethesda or Waltham
$140k-$220k/yr HybridFull Time
6+ YOE6+ years mobile development experience with React Native, strong JavaScript/TypeScript skills, state management (Redux/MobX), testing (Jest, React Native Testing Library), cross-platform iOS/Android production experience, and mentoring ability.
React Native, JavaScript, TypeScript, Redux, MobX, Jest, React Native Testing Library, RESTful APIs, GraphQL, Node.js, CI/CD
1w
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Associate Software Engineer
Concord or Cambridge
$95k-$105k/yr HybridFull Time
Foundational proficiency in HTML,CSS,JavaScript; experience with React and exposure to TypeScript; familiarity with Git; degree or equivalent practical experience; strong communication and collaborative skills.
React, TypeScript, Git, Claude Code, HTML, CSS, JavaScript
1mo
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Software Engineer | Frontend
Lisbon or San Francisco or Sunnyvale or Raleigh or Seattle or Boston or London or Bangalore or Dublin or Kyiv or Portugal
OnsiteFull Time
2+ YOEFrontend engineer with 2+ years on a SaaS product; strong experience with React and TypeScript, browser application architecture, and familiarity with backend languages (Golang, Python, Rust) is a plus.
React, TypeScript, Golang, Python, Rust, SQL
2mo
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Senior Front End Engineer
Cambridge, Massachusetts, United States
$150k-$185k/yr OnsiteFull Time
10+ YOE10+ years frontend experience; expert in JavaScript/TypeScript; deep React knowledge; strong state management; build tooling; leadership and mentorship; frontend performance and accessibility.
JavaScript, TypeScript, React, Redux, MobX, Zustand, Webpack, Vite, esbuild, Jest, React Testing Library, Playwright, Cypress, GraphQL, WebSockets, Framer Motion, Accessibility (WCAG), CI/CD, Testing
2mo
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Senior Software Engineer
Boston, Massachusetts, United States
$140k-$160k/yr HybridFull Time
5+ YOE5–8+ years full-stack engineering; C#/.NET or Java; React/TypeScript; APIs; SQL; Git; CI/CD; Azure; Agile; secure coding.
C#, Java, React, TypeScript, SQL, Git, CI/CD, Azure, Cloud