Top Senior Javascript Jobs

Design, develop, test, debug, troubleshoot, and implement software components for intermediate-complexity systems. Participate in incident resolution, impact analysis, monitoring/alerting, and collaborate with the team to deliver steady, incremental releases.

Design, develop, and maintain front-end (React/HTML/CSS) and back-end (Django/Python) web applications. Architect platforms, perform code/design reviews, interface with stakeholders, write documentation and tests, support deployments and system performance improvements, and build monitoring/automation tools.

Design, develop, configure, test, and deploy front-end web applications using TypeScript/JavaScript and frameworks like Angular or React. Collaborate with analysts, PMs, and clients, participate in code/design reviews, write documentation and runbooks, build monitoring/automation tools, and support application infrastructure, deployments, and performance improvements.

Senior full‑stack engineer responsible for building backend services (Node.js/TypeScript) and integrating with frontends (React/Vue). Ship production APIs, collaborate cross‑functionally, own delivery, mentor peers, and develop modular, testable, performant systems across diverse greenfield projects.

Lead full-stack development using Next.js and NestJS, build Node.js backend services with PostgreSQL, implement real-time messaging, apply prompt engineering and model training, develop embeddings/chunking and RAG features, write TypeScript code, mentor juniors, and participate in code reviews.

The Senior Full Stack JavaScript Developer will build and maintain user interfaces using React and Next.js, integrate with Node.js backends, and guide other developers. Responsibilities include ensuring accessibility, performance, and reliability of features, engaging in code reviews, and collaborating closely with product teams.

The Senior Front End Software Developer will create secure, performant, cross-platform applications, collaborate on feature implementations, and ensure code usability and testing, with a focus on design and structure.

Senior-level remote Fullstack JavaScript developer responsible for building and owning frontend and backend features using JavaScript/TypeScript, Node.js, and React. Develop RESTful APIs, work with relational or NoSQL databases, use cloud services (AWS), mentor teammates, and potentially grow into technical leadership. Requires strong English and availability to overlap time zones.

Develop and sustain a high-performance geospatial collaboration reporting tool. Enhance and redevelop the frontend to meet Section 508 accessibility requirements, troubleshoot interfaces between applications, and implement feature improvements and maintenance for the reporting tool suite.

Develop and sustain a mission-critical reporting and geospatial collaboration frontend. Redevelop and enhance the UI for Section 508 accessibility, maintain interfaces between applications, troubleshoot issues, and support ongoing feature enhancements and testing for intelligence community reporting tools.

Senior front-end engineer responsible for building complex, interactive web applications using advanced JavaScript, HTML5 and CSS3. Collaborate with UX and product owners, design reusable components, enforce client-side business logic, and lead unit test and automation efforts while working in Agile teams.

Senior front-end developer building complex, interactive web applications using advanced JavaScript, HTML5 and CSS3. Collaborate with UX, product, and backend engineers to design reusable components, enforce client-side business logic, write and automate tests, and continuously improve product and processes.

Join a team building a strategic reference data platform for client, account and instrument data. Deliver horizontally scalable, high-performance JavaScript applications, collaborate with senior business and technical partners, and maintain/extend mission-critical software. Requires strong problem-solving, independence, and ability to learn new technologies quickly.

Front-end developer to build and maintain a customer-facing solar-usage portal. Requires strong JavaScript and HTML/CSS skills, unit-test experience (Karma/Mocha/Chai), and familiarity with Angular/AngularJS. Collaborate in an Agile team, communicate clearly, and work on a 6-month contract with optional remote work.

Develop cross-browser, event-driven web UIs using JavaScript and Ext JS. Integrate with RESTful services via AJAX/JSON, work with JSP, XML, CSS and DOM. Follow MVC patterns and build secure front-end applications.

Full-stack developer focused on front-end and mid-tier work. Build and modify web applications using JavaScript/HTML5/CSS3 and C#, implement database logic (SQL/Stored Procedures), follow SDLC, write unit tests, perform code reviews, produce technical documentation, provide production support, and mentor junior developers.

Develop and maintain rich Java-based and JavaScript-based user interfaces using modern UI frameworks. Implement component-based designs, integrate with middleware and RESTful services, work with WebSphere Portal/JSR286 and J2EE platforms. Collaborate across global teams in the insurance domain, perform technical design and programming, and apply analytical skills to deliver enterprise UI solutions.

The Front-End Software Engineer will design and develop software products, optimize application performance, and collaborate with team members while providing ongoing maintenance and support.

The role involves developing scalable web-based UIs and trading tools, collaborating with traders and developers to implement trading and reporting tools.

Build and maintain Supabase JS/TS SDKs used across runtimes. Author libraries, manage public repos, triage issues, review PRs, keep CI/release automation healthy, own type experience, support realtime/WebSocket semantics, ensure cross-runtime compatibility, write RFCs, docs, and migration guides, and improve SDKs for AI coding agents.

Lead front-end development using JavaScript frameworks and Handlebars. Provide technical oversight, code reviews, and implement responsive, mobile-first UI integrated with REST services. Deliver high-quality software using TDD (Mocha), build/test automation, and Agile/Scrum practices.

As a Senior Software Engineer at Sentry, you'll innovate in JavaScript SDKs, push coding boundaries, and engage with the open-source community, ensuring impactful developer tools.

As a Senior Software Engineer, you will develop and innovate JavaScript SDKs for various server runtimes, ensuring high-quality code and engaging with the open-source community.

Develop front-end web applications using JavaScript, HTML5, and CSS in an Agile environment. Implement UIs with frameworks (Angular, React, Vue), use CSS preprocessors, version control, unit testing, and automation tools. Apply security-by-design, collaborate with teams, and solve complex problems.

As a JavaScript Developer, you will design, implement, and maintain web applications, collaborate with cross-functional teams, innovate solutions, and ensure high performance and availability of systems.