Top Senior Front-End Engineer Jobs in Boston, MA

Build and maintain production-grade React+TypeScript web interfaces for data-intensive, real-time AI products. Own end-to-end frontend features, optimize UI performance for large datasets, collaborate with design and backend teams, establish frontend best practices, improve architecture and tooling, and resolve production issues across browsers and devices.

Design and implement pixel-perfect, high-performance web applications from wireframes to production. Collaborate with designers, PMs, and engineers, iterate on architecture and best practices, explore AI/ML integrations, and contribute to a collaborative engineering culture.

The Sr/Staff Frontend Engineer will develop new web applications, enhance UI experiences, architect solutions, and collaborate with various stakeholders to ensure a scalable and secure platform.

Join the frontend team to design and implement complex, real-time, data-driven web applications using Angular and observables. Collaborate with product and engineering to deliver scalable, reliable cloud-based features, handle asynchronous/streaming data, and contribute frontend business logic. Full-stack and Firebase experience is a plus.

Design and implement scalable frontend solutions using JavaScript/TypeScript and React. Drive architecture discussions, ship features with minimal guidance, maintain code quality and styling standards, collaborate across agile teams, ensure performance and scalability, and manage end-to-end feature lifecycles in a fast-moving environment.

Lead frontend design and implementation for patient and physician products, shape frontend architecture (design systems, state, testing, performance), integrate AI/LLM features with backend/ML teams, and deliver polished, accessible, high-performance interfaces in a hybrid NYC/Boston environment.

The Full-Stack Engineer will enhance backend functionality, collaborate with teams, and maintain platform performance and security, requiring expertise in Python.

Lead frontend and mobile rebuild of a healthcare scheduling platform using Vite + React 19 and Expo/React Native with a shared TypeScript layer. Own identity and access migration to a modern IAM, implement push notifications, build a component library/design system, instrument analytics and session replay, enforce WCAG 2.1 AA accessibility and performance standards, mentor mid-level engineers, and contribute to hiring.

The role involves designing and building user interfaces for industrial automation systems, improving frontend architecture, collaborating with backend engineers, and ensuring quality through testing and code reviews.

Expand and maintain Hudl's front-end platform to accelerate product teams: design and implement scalable, performant, accessible front-ends and tooling (Vite, Next.js), consult and review front-end work, support adoption of design systems, and mentor teams to improve developer experience.

Build full-stack vertical slices for a mission-critical government system with a frontend focus: React/TypeScript UIs, Node services, Prisma schemas, PostgreSQL, and AWS. Use agentic AI tools, lead design-system/accessibility, apply TDD and Playwright E2E testing, maintain CI/CD, and iterate continuously with stakeholder review.

Develop AI/ML-powered features in ClickHouse Cloud, focusing on frontend and API architecture, UI/UX, and integrations with AI systems.

Full-Stack Engineer responsible for developing and maintaining front-end and back-end components, collaborating on product solutions, and improving user interfaces.

Develop and maintain front-end and back-end components of AI-driven products, collaborating with teams to enhance user experience and build proof of concept products.

Develop and maintain Java backend services for enterprise blockchain applications, integrate APIs with React/Vue frontends, design scalable blockchain solutions, troubleshoot complex backend issues, and collaborate with the team to apply best practices and stay current with blockchain trends.

Lead the development of a scalable frontend web application for an AI photo platform, recommend technologies, and ensure performance optimization.

Lead frontend development for Cerbys Access Management platform, building scalable React/Next.js SaaS features (password vaults, auth/IdP integrations, graph RBAC). Drive security-first engineering, dependency governance, performance, accessibility, testing, observability, and AI-assisted workflows while mentoring engineers and collaborating cross-functionally.

Build and ship full-stack features for North, develop autonomous agents that access sensitive enterprise data, productionize state-of-the-art models, write minimal, secure low-resource code, and collaborate with researchers to deploy performant RAG/agentic applications while prioritizing security and user experience.

Lead technical direction and contribute to the frontend codebase, building user-facing tools and mentoring team engineers to enhance user experiences.

Build and ship performant, polished frontend features using React/TypeScript. Refactor code incrementally, implement smooth animations, contribute to backend Node.js APIs when needed, use AI-assisted tools, own production deployments, and collaborate directly with CTO/CPO on product and design.

The Software Engineer (Frontend) at Metabase will develop user-friendly data tools, leveraging React and CSS while ensuring optimal communication and coding practices.

As a Senior Frontend Software Engineer, you'll develop user-facing features using React and TypeScript, ensuring performance and cross-device compatibility while collaborating with teams to maintain a component library.

Design and develop web applications, mentor teammates, shape architectural decisions, write clean code, conduct testing, and troubleshoot issues.

As a Senior Software Engineer, you will lead frontend development, define architecture, optimize performance, and collaborate across teams to create user-friendly logistics applications.

The Senior Frontend Software Engineer will design, develop, and enhance frontend capabilities on the Graykey platform, ensuring quality code and collaboration with design and QA teams.