Top Front End Developer Jobs in Boston, MA

Architect and build a high-performance trading platform for active traders. Develop responsive web interfaces integrating real-time market data, low-latency execution workflows, and advanced trading tools. Collaborate with cross-functional engineering teams on large-scale initiatives, emphasizing scalability, performance, API quality, maintainability, developer experience, and end-user usability.

Lead the evolution of Seeq’s frontend infrastructure, including React systems, component libraries, state management, styling architecture, and reusable application patterns. Drive large-scale refactors, improve developer experience, ensure accessibility and performance, evaluate open-source tools, and establish technical standards adopted across teams. Collaborate with designers, product teams, and engineers through architecture reviews, documentation, code reviews, mentoring, and cross-team delivery.

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.

Build and polish complex interactive video-editing features for Studio, including transitions, color grading, element libraries, presets, and customizable keyboard shortcuts. Own frontend-leaning full-stack work from proposal through launch, collaborate in a fast-moving startup environment, and contribute to product decisions and marketing efforts. Deep backend expertise is not required.

Lead frontend engineering for large-scale React web applications. Architect application patterns, structure, libraries, and coding standards; build React applications end to end; conduct code reviews; mentor engineers; promote performance, scalability, and maintainability; and collaborate with designers, product managers, and technical and non-technical stakeholders.

Lead front-end engineering for enterprise transportation applications using React, TypeScript, and Material UI. Responsibilities include front-end architecture, reusable component development, accessibility, responsive design, API integration, SQL troubleshooting, testing, CI/CD, code reviews, mentoring, Agile planning, modernization, and production support. The role independently leads features from requirements through deployment while collaborating with designers, product owners, analysts, engineers, testers, DevSecOps teams, and government stakeholders.

Build the realtime, HIPAA-compliant messaging and collaboration frontend ('Pulse') that makes an AI colleague feel human. Implement complex interactive data visualizations, micro-interactions, and high-performance accessible interfaces. Work embedded with product and design, own UI quality, iterate on AI-driven specs, and deliver production frontend experiences clinicians will trust.

Design, build, and deliver front-end features with strong UX focus. Own technical design, coding, testing, deployment, and monitoring in a continuous delivery, microservices environment. Collaborate with Product, implement automated QA practices, and contribute to production deployments while practicing robust testing methodologies.

Design, build, deploy, and maintain secure, scalable Java and Spring Boot services for a multi-tenant ecommerce SaaS platform. Develop REST APIs, optimize MySQL databases, operate AWS workloads, and support CI/CD, observability, testing, and production systems. Contribute to architecture and technical decisions, mentor engineers, troubleshoot issues, and participate in on-call support while ensuring PCI DSS compliance and responsible use of AI-assisted development tools.

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.

Build and scale a consumer healthcare web application using Next.js, React, and TypeScript. Own major product surfaces including search, scheduling, provider profiles, and checkout while ensuring strong performance, accessibility, UI quality, and cross-browser compatibility. Collaborate with design, operations, and clinical stakeholders; make frontend architecture decisions; work with Rails APIs and Postgres; write SQL, product requirements, tests, and QA; and deliver features across the stack.

Build polished, responsive front-end applications for Chiri Brain and client-specific AI solutions. Design user flows, prototypes, interfaces, reusable components, and design systems while integrating APIs, authentication, business data, agent workflows, and security controls. Work directly with customers and stakeholders to understand needs, rapidly prototype, gather feedback, and ship production-quality software. Help establish scalable front-end architecture and use AI-assisted development tools to accelerate delivery.

Senior Front End Software Engineer responsible for architecting, building, and maintaining high-performance applications across frontend, backend, cloud, and event-driven systems. The role leads complex technical initiatives, integrates AI and data pipelines, ensures software quality through testing and reviews, owns applications throughout their lifecycle, documents architecture, collaborates cross-functionally, and mentors engineers. Primary technologies include TypeScript, JavaScript, React, Node.js, AWS, and modern CI/CD and containerization practices.

Lead frontend engineering for the DataLab product, developing scalable React and TypeScript interfaces for enterprise financial applications. Guide frontend architecture, component design, accessibility, performance, developer experience, and testing practices. Collaborate with product managers and backend engineers, mentor teammates, make technical decisions, and promote AI-assisted coding tools while maintaining high standards for security, quality, and maintainability.

Leads frontend software development across strategic product domains, designing and building dashboards, notifications, reporting interfaces, and intelligent automation. Independently drives complex technical projects, integrates AI models and data pipelines, improves performance, writes automated tests, conducts code reviews, documents architectures, owns applications throughout their lifecycle, and mentors engineers. Collaborates with cross-functional stakeholders to deliver scalable tools for real estate agents.

Build and maintain React and TypeScript web applications for EEG analytics, clinical study management, and at-home patient diagnostics. Own user experience, performance, reliability, and observability while designing data-rich workflows and interactive visualizations. Collaborate asynchronously with product designers and cross-functional teams, contribute to roadmap direction, and develop scalable GraphQL consumers. The role involves supporting clinical operations, physician workflows, and diagnostic reporting.

Principal Frontend Engineer responsible for defining and governing large-scale frontend architecture across clinical applications. Leads modernization from fragmented systems to a React-based platform using JavaScript, TypeScript, Node.js, GraphQL, and shared component standards. Drives migration strategy, technical governance, performance improvements, AI-assisted development tooling, and cross-team alignment while mentoring engineers. Advises on CI/CD, AWS infrastructure, Oracle integrations, legacy Perl utilities, security, hiring, and long-term workforce planning.

Lead frontend architecture and delivery for React-based clinical applications. Mentor engineers, establish component libraries and coding standards, integrate GraphQL and REST APIs, support Node.js tooling and server-side rendering, lead migration to a unified architecture, and drive testing, performance, accessibility, deployment readiness, and cross-functional technical alignment.

Develop and maintain scalable React and TypeScript frontend applications for clinical healthcare workflows. Build reusable accessible components, integrate GraphQL and REST APIs, migrate legacy architectures, optimize performance, troubleshoot UI issues, and support testing, deployment, documentation, and engineering standards. Collaborate with product, design, and backend teams while using Node.js, AWS, and related tooling to deliver a unified frontend platform.

Build and lead customer-facing eCommerce booking features using React, Next.js, and TypeScript. Own checkout, payments, scheduling, and partner booking flows; improve conversion, accessibility, performance, observability, and reliability. Integrate commerce and third-party services, develop automated tests, support frontend architecture, instrument experiments and analytics, and monitor production outcomes. Collaborate across Product, Design, Marketing, and Backend teams while mentoring junior engineers and contributing to shared components and API contracts.

Build and maintain fast, intuitive frontend applications for blockchain and Web3 products. Collaborate with product, design, and engineering teams; develop reusable components and frontend architecture; integrate wallets and smart-contract interactions; improve performance, reliability, and accessibility; participate in technical planning and code reviews; mentor other developers and establish frontend best practices.

Design and build a scalable, responsive UI; lead frontend architecture and optimization; apply UI/UX best practices; integrate with backend APIs; ensure high web performance and deploy user-facing features.

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.