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209 javascript typescript jobs at 121 companies in Massachusetts

1w
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Software Engineer (TypeScript/JavaScript)
Boston or Salt Lake City or San Francisco or New York City
RemoteFull Time
Databento
Databento: Provides a pay-as-you-go financial market data platform.
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
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3mo
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Javascript - Senior Developers - AI Training - Boston, USA
Boston or United States
$50/hr RemoteContract
Prolific
Prolific: Platform connecting researchers and AI developers with verified participants.
BS/MS/PhD in CS or related; professional experience building scalable web apps with JavaScript/TypeScript; strong algorithmic problem-solving (LeetCode Medium–Hard); deep JS internals knowledge and clean ES6+ code practices.
JavaScript (ES6+), TypeScript, React, Node.js, Vue, Angular, Jest, Cypress, Webpack, Vite, GraphQL, RESTful APIs, LeetCode
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2mo
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Senior Front End Engineer (Angular, JavaScript)
Boston, Massachusetts, United States
$97k-$185k/yr OnsiteFull Time
Fidelity Investments
Fidelity Investments: Provides investment management, retirement planning, and brokerage services.
5+ YOESenior Front End Engineer with Angular, JavaScript, TypeScript, RxJS, HTML/CSS; experience with NgRx/Redux; REST APIs; CI/CD; AWS/Docker; 5 years in software engineering; bachelor’s degree preferred.
Angular, JavaScript, TypeScript, RxJS, HTML, CSS/SCSS, NgRx, Redux, Playwright, Cypress, REST APIs, AWS, Docker, CI/CD
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2mo
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Senior Front End Software Developer (AI, React, JavaScript) - Remote US
Waltham or United States
$130k-$158k/yr RemoteFull Time
Revvity
RevvityNYSE: RVTY: Sells laboratory equipment and diagnostic tests for healthcare research.
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
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2mo
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Software Development Engineer in Test
Boston, Massachusetts, United States
$95k-$105k/yr HybridFull Time
SS&C Technologies
SS&C TechnologiesNasdaq: SSNC: Provides software and technology for financial and healthcare sectors.
SDET with programming experience in JavaScript/TypeScript, Python, C#, or Go; understanding of core testing concepts; strong communication.
JavaScript, TypeScript, Python, C#, Go, Cypress, Playwright, Jest, Postman, Docker, AWS, GitHub Actions, Jenkins, Grafana, SQL, Slack, PagerDuty, AWS Lambda
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2mo
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Manager I, Engineering - Data Visualization Explorations
Boston or New York
$187k-$240k/yr HybridFull Time
Datadog
DatadogNASDAQ: DDOG: Observability and security platform for cloud applications and infrastructure.
2+ Mgmt2+ years people management in software, strong TypeScript/JavaScript, React, excellent communication, customer-focused, ownership mindset
TypeScript, JavaScript, React
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6d
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Senior Full Stack Engineer
Somerville, Massachusetts, United States
$120k-$165k/yr OnsiteFull Time
AgZen
AgZen: AI-powered precision agriculture technology for optimized crop spraying.
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
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1w
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Associate Software Engineer
Concord or Cambridge
$95k-$105k/yr HybridFull Time
KAYAK
KAYAK: Global travel search engine for flights, hotels, and rentals.
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
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2mo
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Senior Front End Engineer
Cambridge, Massachusetts, United States
$150k-$185k/yr OnsiteFull Time
Blitzy
Blitzy: Autonomous AI platform for enterprise software development.
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
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1mo
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Software Engineering Lead
North Andover, Massachusetts, United States
$115k-$192k/yr OnsiteFull Time
RELX
RELXLondon Stock Exchange: REL: Provides information-based analytics and decision tools for professional customers.
Experience leading engineers; proficient in Python, Java, C#, .NET, JavaScript or TypeScript; strong AWS, Docker, Kubernetes; CI/CD; DevOps; Agile; excellent communication.
AWS, Docker, Kubernetes, CI/CD, DevOps, Python, Java, C#, .NET, JavaScript, TypeScript
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3w
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Software Engineer, DevSecOps
Cambridge, Massachusetts, United States
$109k-$175k/yr HybridFull Time
Moderna
ModernaNasdaq: MRNA: Develops and manufactures messenger RNA medicines and vaccines.
5+ YOE5+ years in software/platform/DevOps; strong TypeScript/JavaScript or Python; AWS experience; CI/CD pipeline creation; developer tooling and platform engineering experience.
Python, TypeScript, JavaScript, GitHub Actions, Pulumi, Docker, AWS, JFrog, JFrog Artifactory, Nexus, GitHub Packages
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1mo
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Software Engineering Lead
North Andover, Massachusetts, United States
OnsiteFull Time
Elsevier
ElsevierLondon Stock Exchange: REL: Provides scientific, technical, and medical research information and analytics.
Extensive software engineering experience with leadership; proficiency in Python, Java, C#, JavaScript/TypeScript; AWS; Docker & Kubernetes; CI/CD; DevOps; Agile; strong communication.
AWS, Docker, Kubernetes, CI/CD, Python, Java, C#, JavaScript, TypeScript, .NET, APIs, DevOps, Infrastructure Automation
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3w
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Frontend Engineer (Civil Aviation)
Boston, Massachusetts, United States
OnsiteFull Time
Air Space Intelligence
Air Space Intelligence: Provides predictive AI software for aviation and defense operations.
Proficiency in JavaScript/TypeScript, React, Redux, CSS; experience building map-based web applications (Mapbox/Maplibre/Google Maps); familiarity with WebGL/WebGPU/ThreeJS and WebAssembly (WASM).
React, Redux, Mapbox, TypeScript, JavaScript, CSS, Maplibre, Google Maps, WebGL, WebGPU, ThreeJS, WebAssembly (WASM)
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2w
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Front End Development Engineer, Automation Integration Technologies
Austin or Bellevue or Arlington or North Reading
$144k-$194k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
2+ YOE2+ years professional front-end/web/mobile development using JavaScript, HTML, CSS; CS fundamentals; experience with Angular or React; familiarity with TypeScript/Node and AWS preferred.
JavaScript, HTML, CSS, Angular, React, TypeScript, Node, AWS
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2w
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Product Engineer (AI) - Operations
Arizona or Colorado or Florida or Idaho or Georgia or Illinois or New Hampshire or Kansas or Massachusetts or Michigan or Minnesota or North Carolina or New York or Ohio or Oregon or Pennsylvania or South Carolina or Tennessee or Texas or Utah or Virginia or Washington or Wisconsin
$150k-$160k/yr RemoteFull Time
MedBridge
MedBridge: Provides healthcare education and patient engagement software solutions.
2+ YOE2+ years software engineering experience, hands-on delivery of AI-powered production applications, LLM integration experience, proficiency with Python/TypeScript/JavaScript, strong product instincts and communication.
Claude, Cursor, Codex, OpenAI, Anthropic, Python, TypeScript, JavaScript, Docker, Kubernetes, AWS, Azure, GCP
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1d
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Software Developer in Test
Boston, Massachusetts, United States
$110k-$135k/yr HybridFull Time
CivilGrid
CivilGrid: SaaS mapping platform for underground utility and site intelligence.
4+ YOE4+ years QA or software testing for web and mobile, proficiency with JavaScript/TypeScript, experience building automated end-to-end and regression suites, strong communication and test-writing skills.
JavaScript, TypeScript, Playwright, Cypress, Appium, CI/CD
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1mo
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Engineer III, Software (Hyderabad, IN)
Hyderabad or Boston
RemoteFull Time
Syniti
SynitiEuronext Paris: CAP: Enterprise software for data migration, quality, and governance.
3+ YOE3+ years full-stack experience; proficiency with Go or C#, AWS, React, TypeScript/JavaScript, SQL/NoSQL/graph databases; familiarity with CI/CD and DevOps; mentoring experience.
Go, C#, AWS, React, TypeScript, JavaScript, SQL, NoSQL, graph databases, CI/CD, DevOps
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1mo
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Software Engineer
Waltham, Massachusetts, United States
$100k-$120k/yr HybridFull Time
Allego
Allego: Provide a modern revenue enablement platform for sales teams
3+ YOE3+ years experience; strong web development skills with JavaScript/React/TypeScript and Java/J2EE; experience debugging with browser dev-tools; Agile collaboration and BS degree preferred.
JavaScript, jQuery, React, TypeScript, Chakra UI, Emotion, Java, J2EE, Browser dev-tools, TanStack Table, Axios, React Hook Form, Yup, Jotai, Immer, Git, Struts 2, JSP, Spring MVC, Webpack, Vite, React Testing Library, WebdriverIO, ESLint, Stylelint, SCSS, OAuth, OIDC, SAML, AWS SDK
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1d
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Principal Software Engineer, Cloud
Cambridge, Massachusetts, United States
$168k-$210k/yr OnsiteFull Time
Cambridge Mobile Telematics
Cambridge Mobile Telematics: Providing telematics and behavioral analytics for safer driving and insurance.
7+ YOE7+ years web application experience, proficiency in HTML/CSS, jQuery, Python, JavaScript/TypeScript, strong database and API experience, bachelors or equivalent, strong communication and leadership skills.
HTML/CSS, jQuery, Python, JavaScript, TypeScript, React, Angular, AWS
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1mo
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UI Engineer
Boston or New York City
HybridFull Time
OnCorps
OnCorps: Automating financial fund operations with domain-specific AI agents.
5+ YOE5+ years frontend experience; strong JavaScript/TypeScript, HTML5, and modern CSS; experience with React or Angular, Storybook.js, RESTful/GraphQL APIs, design systems, accessible and scalable UI architecture.
React, Angular, JavaScript, TypeScript, HTML5, CSS, Storybook.js, RESTful APIs, GraphQL
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