Top Front End Developer Jobs in Boston, MA

Lead end-to-end development of modern frontend initiatives using React and Electron. Design scalable architecture, improve performance and test coverage, resolve production issues, influence technical decisions, and collaborate with Product, Design, and Backend teams. The role includes mentoring engineers, maintaining code quality, supporting observability and incident response, and building secure, high-quality customer-facing payment and form workflows.

Lead front-end architecture and cross-team technical initiatives for the NodeZero platform. Build scalable React and TypeScript systems, reusable components, developer tooling, and shared frameworks while improving performance, reliability, accessibility, observability, and CI/CD workflows. Mentor engineers, establish engineering standards, guide technical strategy, reduce technical debt, and collaborate with Product, Design, Platform, Security, and engineering teams.

Build, deploy, and own scalable consumer applications and services for a digital lending platform, with a focus on React frontend development. Responsibilities include designing features, automated testing, full software development lifecycle participation, collaboration with cross-functional teams, system scalability and reliability, technical debt reduction, mentoring frontend engineers, and using AI-driven coding agents and agentic workflows.

Build and own user-facing frontend interfaces across AI agents, app-building tools, mobile PWA experiences, and marketing pages. Responsibilities include frontend architecture, system design, data modeling, API design, maintaining high-quality monorepo code, independently shipping customer features, and delivering polished UX/UI. The role requires strong TypeScript and React expertise, familiarity with AI coding workflows, and ideally experience with containers, Postgres, and Redis.

Build and ship frontend features for a financial marketplace using React and Next.js. Collaborate with product, design, and backend engineers; contribute to architecture, component design, code quality, tooling, and the shared component library. Own work from design through delivery, participate in pairing and code reviews, and use AI-assisted development tools thoughtfully.

Develop and enhance LangSmith frontend features using React and TypeScript. Build reusable components, translate designs into high-quality interfaces, optimize performance across browsers and devices, and collaborate with backend, full-stack, and UX/UI teams to improve usability and product quality.

3-month contract Frontend Engineer to build client-facing UIs and integrations for cybersecurity use cases. Collaborate with product, design, and engineering to deliver secure, performant, scalable features, maintain component libraries and automated tests. Remote (GMT+8) role focused on TypeScript and modern web tooling.

As a Frontend Software Engineer, design, develop, and deploy web applications, collaborate with UX engineers, and implement user-friendly interfaces.

Serves as a technical lead for Military OneSource and related websites, developing WordPress-based front-end experiences with HTML, CSS, and JavaScript. Responsibilities include accessibility compliance, UX implementation, API integration, troubleshooting, Agile collaboration, modernization initiatives, documentation, and developer mentorship. The role is fully remote and requires an active Secret clearance.

Develop, maintain, and optimize production-grade frontend code for enterprise client websites. Participate in code reviews, documentation, accessibility optimization, performance-focused animation, and agile collaboration with multidisciplinary teams. The role requires delivering polished, scalable web experiences for external clients on fixed deadlines while working independently in a remote environment.

Own end-to-end frontend development for core crypto payment flows across web and mobile. Improve latency, availability, and SLOs; build user-facing features (contacts, real-time transaction status); identify and fix performance bottlenecks; partner with product/design/backend; mentor junior engineers to reduce customer friction at scale.

Build performant, accessible front-end interfaces for AI agents, dashboards, conversational user interfaces, and visualization tools. Collaborate with designers, AI engineers, and backend developers to create scalable components, optimize cross-browser experiences, and iterate on UX using testing, feedback, and usage data.

Develop and maintain scalable frontend solutions using JavaScript, Angular, and React. Collaborate with cross-functional teams, contribute to architecture, conduct code reviews, uphold security and performance standards, and support cloud-based platforms. Diagnose technical issues, improve system reliability, mentor teammates, and promote DevOps, continuous delivery, design patterns, and software engineering best practices.

Design, build, and optimize responsive, high-performance front-end interfaces for a Web3 DEX using modern JavaScript frameworks and TypeScript. Collaborate with designers, product, and back-end teams to integrate blockchain APIs and smart contracts, mentor junior developers, troubleshoot issues, and contribute to mobile-first/PWA development while ensuring scalability and maintainability.

Build and maintain responsive, accessible React/NextJS web interfaces and support Chrome extension development (Manifest V3). Integrate with backend APIs or WebSockets, optimize performance, write tests, perform code reviews, monitor and document extension and web app behavior, and collaborate with cross-functional teams.

Lead frontend development for Coinbase identity experiences including login, signup, OAuth, account security, and multi-factor authentication. Own projects from design through deployment and monitoring, guide Native versus Webview architecture, author technical designs, resolve systemic technical debt, lead on-call and incident response, and mentor engineers.

Lead the architecture and delivery of large-scale React and React Native applications across web and mobile. Establish frontend standards for performance, accessibility, reliability, and maintainability; build shared component libraries and design systems; resolve complex frontend and cross-stack issues; partner with product, design, and backend teams; and mentor engineers while shaping technical strategy across multiple product areas.

Build, maintain, and enhance secure frontend applications using TypeScript and React.js. Responsibilities include analyzing requirements, documenting technical specifications, creating test plans, writing and reviewing code, debugging, releasing software, developing web-based replacements for legacy applications, integrating APIs, demonstrating features to stakeholders, and improving development tools and processes.

Build and maintain high-performance Vue.js interfaces controlling automated restaurant robotics. Develop real-time WebSocket communication, manage complex reactive state, translate Figma designs into intuitive tools, and optimize frontend performance under heavy data loads. Collaborate with software, hardware, product, and design teams while learning additional technologies such as Elixir and Phoenix.

Own and deliver major consumer-facing web and mobile features from technical design through experimentation and launch. Drive frontend architecture, performance, accessibility, testing, observability, and design-system standards. Build conversion-critical discovery, seat-selection, and checkout experiences, interpret A/B tests, mentor engineers, and collaborate with product, design, backend, mobile, and platform teams.

Own and deliver polished, accessible, high-performance frontend experiences using React and TypeScript. Set frontend technical standards, mentor engineers, use AI-assisted development tools, and contribute to product roadmaps. Build backend services and APIs in Go as needed, collaborate with stakeholders, document user-facing products, and help shape engineering culture and quality.

Develop and enhance interactive enterprise planning, reporting, and analytics web applications using SAP Analytics Cloud and JavaScript. Responsibilities include building UI/UX components, reviewing requirements and designs, consuming REST APIs, optimizing performance and scalability, debugging, documenting changes, participating in code reviews, and collaborating with team members. The role is remote, supports a federal customer, and requires Public Trust clearance and U.S. citizenship.

Architect and build high-performance frontend systems for real-time geospatial interfaces controlling autonomous systems. Responsibilities include telemetry ingestion, state management, rendering, connectivity resilience, browser performance optimization, geospatial visualization, scalability, technical architecture, design reviews, and mentoring. The role remains hands-on while influencing frontend strategy and solving complex performance and systems-design challenges.

Own frontend product experiences end-to-end, from problem definition and interaction design through implementation, launch, and iteration. Build polished, responsive interfaces with React and TypeScript, develop reusable components and design systems, and improve performance, accessibility, reliability, and cross-browser behavior. The role requires strong product and UX judgment, sophisticated animations, attention to detail, ownership, and comfort working on ambiguous problems in a fast-paced distributed startup environment.

Develop and support interactive enterprise planning, reporting, and analytics web applications using SAP Analytics Cloud and front-end technologies. Responsibilities include building UI/UX components, reviewing requirements and designs, consuming REST APIs, optimizing performance and scalability, debugging, documenting changes, participating in code reviews, and collaborating with technical teams. The role supports a federal customer remotely and requires Public Trust clearance and U.S. citizenship.