Top Javascript Jobs in Boston, MA

As a Full-Stack Software Engineer II, you will develop AI-centric web applications using TypeScript, collaborating on product and technical decisions while managing project priorities and deliverables.

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.

As a Senior Full-Stack Software Engineer, you will build AI-centric web applications in TypeScript, manage project priorities, and make technology decisions while collaborating with Product and Design teams.

Join Customizo as a Junior JavaScript Developer to begin your training as a ServiceNow Developer. You will learn through certification courses, mentorship, and project collaboration, while developing and optimizing solutions integrated with ServiceNow.

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.

Seeking a Full-Stack JavaScript Developer to build web applications, test software systems, and ensure software quality in a collaborative remote environment.

Build full-stack TypeScript applications, collaborate on product and technical decisions, manage project priorities, and optimize for learning.

As a Senior Full-Stack Software Engineer, you will develop AI-centric web applications, participate in architectural decisions, and mentor team members while managing project priorities and deliverables.

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.

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.

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.

Design and develop responsive cross-platform mobile applications using React Native and JavaScript, collaborating with teams and ensuring high app performance.

Develop and maintain cross-platform mobile apps using React Native and JavaScript, ensuring high performance and usability through coding, collaboration, and testing.

As a Software Engineer, you'll design and develop web applications and APIs, focusing on both front-end and back-end solutions while collaborating with cross-functional teams in an agile environment.

Build and maintain cloud- and browser-based AI and automation applications (internal and customer-facing). Integrate with third-party APIs (QuickBooks, Microsoft Graph, CRM, Zoom), implement AI workflows (OpenAI), automate business processes (Zoho, PowerAutomate), and ensure security and maintainability while working closely with leadership and IT.

Support enterprise-scale applications in secure environments. Develop UI components, collaborate with teams, and assist with Agile delivery and testing.

The role involves leading the development of a high-performance Web SDK for fraud detection and risk management, implementing algorithms for device fingerprinting, and ensuring security and performance optimization.

Design and build web apps for creating and listening to music. Optimize performance, contribute to design decisions, and create libraries for audio experiences.

Seek a Senior React/JavaScript UI Developer for enterprise application support focusing on React, Vue, and secure coding principles within Agile.

Build end-to-end features in a JS/TS stack, designing scalable backend services and responsive real-time frontends. Improve observability, performance, and reliability, collaborate with product/design, and own full-stack implementation from APIs and data models to UI.

As a Senior Software Engineer at Flex, you'll design and maintain financial services architecture, mentor junior engineers, and ensure scalability and security for innovative financial products.

Build end-to-end features, design intuitive interfaces, manage asynchronous backend jobs, and contribute to open-source efforts, while leading project development from concept to monitoring.

Design and develop scalable backend systems for SaaS applications, mentor engineers, and lead projects while collaborating with cross-functional teams.

Seeking exceptional software engineers to build and maintain user-friendly backend systems primarily in Clojure and JavaScript, focusing on product complexities and user experience.