421 javascript developer jobs at 226 companies in Stoneham, MA
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Javascript - Senior Developers - AI Training - Boston, USA
Boston or United States
$50/hrRemoteContract
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.
Boston or Salt Lake City or San Francisco or New York City
RemoteFull Time
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.
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.
3+ YOE3+ years professional development experience; proficiency in JavaScript/Node.js or C#, SQL, cloud services (Azure), authentication frameworks, Git/CI-CD, and AI-assisted development; bachelor’s degree or equivalent experience.
Bright HorizonsNYSE: BFAM: Provides child care, early education, and workforce education services.
3+ YOE3+ years in .NET web development and/or Microsoft Dynamics development (Plugins, Power Automate, JavaScript). Bachelor's degree in CS or related field; strong communication and collaboration skills.
VencoraTSX: CSU: Acquires and operates vertical market software businesses for financial services.
3+ YOE3+ years professional development experience in JavaScript/Node.js, C#, or equivalent; SQL and cloud service experience; mentoring ability; bachelor’s degree or equivalent preferred.
ITWNYSE: ITW: Global manufacturer of specialized industrial equipment and consumables.
5+ YOE5+ years WordPress development experience; strong PHP, JavaScript, HTML5, CSS3, MySQL skills; WP Engine, Bitbucket/Git, HubSpot, Cloudflare, SEO, analytics, and vendor/project management experience.
WordPress, WP Engine, Bitbucket, Git, CI/CD, PHP, JavaScript, HTML5, CSS3, MySQL, HubSpot, Salesforce, Cloudflare, Confluence, Google Analytics, Google Analytics 4, Google Tag Manager
Nanobiosym: Portable nanotechnology platforms for rapid, real-time disease detection.
Bachelor's degree in CS or related; strong HTML, CSS, JavaScript; experience with Vue, React or Angular; CMS knowledge (WordPress/Joomla); UI/UX and graphic design skills; REST API development; Agile and test-driven practices.
Leader Bank: Community bank providing personal and commercial banking and mortgage services.
1+ YOEBachelor’s degree or equivalent, 1+ years software development experience, proficiency with JavaScript/Vue.js, Python, RESTful APIs, relational databases, Git, and AWS services.
RapDev: Specializes in ServiceNow implementations and Datadog engineering services.
3+ YOEMaster's in CS or related + 3 years ServiceNow developer experience; proficiency with Scoped Applications, Flow Designer, IntegrationHub, Workflow Editor, AngularJS, JavaScript, GlideAjax, APIs, and debugging; strong communication skills.
Covenir: Provides business process outsourcing services for the insurance industry.
3+ YOE3+ years professional development experience with JavaScript/Node.js or C#, strong SQL and relational database skills, cloud (Azure) experience, Git/GitHub and CI/CD, knowledge of Auth0 and insurance BPO processes; bachelor’s or equivalent.
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.
5+ YOE5+ years front-end development with JavaScript/TypeScript and React/Angular, NodeJS experience, RESTful API and SQL knowledge, automated UI testing, EM, mentoring and strong communication skills.
Aras: Develops low-code software for industrial product lifecycle management.
3+ YOEMid-level software engineer with strong problem-solving, experience with C#, JavaScript, SQL, web application development; able to collect requirements, develop, test, and customize product for customers.
Leader Bank: Provides personal and business banking services and mortgage lending.
1+ YOEBachelor's or equivalent experience,1–2 years professional software development,experience with JavaScript,Vue.js,Python,RESTful APIs,relational databases,AWS,Git,CI/CD,and applied AI concepts.
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.
Mitsubishi Electric Iconics Digital Solutions: Provides industrial automation, SCADA, and IoT software solutions.
2+ YOEMaster's degree required, 2+ years professional software development experience, proficiency with at least one language (Python, JavaScript, C#, Java), Git, cloud/containerization concepts, and strong communication and problem-solving skills.