Top Senior Front-End Engineer Jobs in Boston, MA

Design, build, test, and maintain scalable, responsive front-end applications (React/TypeScript). Collaborate with cross-functional teams to implement AI-integrated UIs, optimize performance, and own frontend lifecycle including unit, integration, and end-to-end testing.

The Senior Front End Engineer will design, develop, and deploy web experiences, mentor junior engineers, and advocate for user-friendly solutions while engaging with cross-functional teams and ensuring high code quality.

As a Senior Frontend Engineer, you will lead frontend architecture, collaborate across teams, ensure quality, and mentor contributing engineers while integrating AI features.

The Senior Front-end Engineer will design and develop data-intensive applications using React, collaborating with multidisciplinary teams and mentoring junior engineers.

As a Senior Frontend Engineer, you will develop scalable front-end solutions for the HTS platform, ensuring optimal performance and usability in travel-related applications, and collaborating with cross-functional teams.

Lead development of interactive React front-ends with Chakra UI and Mapbox, build data visualizations (Plotly/ApexCharts), optimize performance for large and real-time datasets, enforce front-end best practices, mentor engineers, and collaborate with product, design, and backend teams to deliver accessible, responsive interfaces.

The Senior Frontend Engineer will lead product development for a hotel marketplace, focusing on creating efficient tools for hotel partners and enhancing guest experiences. Responsibilities include ownership of product quality, roadmap execution, and supporting business-critical outages.

Lead frontend development and design-system creation, bridge design and code, maintain Storybook components, introduce AI-powered workflows, mentor teams, and deliver scalable B2B SaaS UI solutions.

Develop and maintain front-end applications using React and Next.js while integrating with eCommerce platforms like Adobe Commerce and Shopware. Collaborate with cross-functional teams to deliver high-performance user interfaces and optimize applications for scalability and accessibility.

As a Senior Frontend Engineer, you'll build and enhance LiveKit's dashboard for voice AI applications, focusing on user experience, performance, and collaboration with cross-functional teams.

The Senior Frontend Engineer will implement and launch features for Slush Wallet, update frontend architecture, and collaborate with design and product teams.

We are seeking a Senior Frontend Software Engineer to build advanced web applications using JavaScript and ReactJS, collaborating with a team to enhance user experiences.

As a Senior Frontend Engineer, you will lead frontend development, mentor team members, design scalable architecture, and enhance UI quality using AI tools.

As a Senior Front-End Developer, you'll build responsive React/TypeScript interfaces, contribute to shared design systems, and collaborate with teams to enhance user interaction in healthcare technology.

As a Senior Frontend Engineer, you will optimize performance across the platform, analyze client traffic, and implement fixes for performance issues. You'll collaborate across teams, advocate for best practices, and ensure a high-quality user experience.

The Senior Front-End Software Engineer will architect and develop user-centric web applications integrating AI, ensuring security, performance, and a top-notch user experience while collaborating with cross-functional teams.

The role involves developing new user-facing features for LangSmith, optimizing components, and collaborating with developers and designers to enhance usability.

As a Senior Frontend Engineer, you will contribute to the development of Wormhole's SDK and frontend components while ensuring best practices in secure frontend development.

Develop user interfaces for web applications, collaborate with teams, mentor engineers, and ensure code quality and performance in a fast-paced environment.

As a Senior Frontend Engineer, you will enhance user experiences by building cross-platform solutions, collaborating with product teams, and improving infrastructure and tooling.

The Frontend Platform Engineer will build and maintain a component library for LangChain, focusing on reusable UI components, design system tooling, and improving workflows for accessibility and performance.

As a Senior Frontend Engineer, you will design and build web applications, owning major UI projects, collaborating with cross-functional teams, and optimizing performance for a seamless user experience.

Design, develop, and maintain web applications using modern technologies. Write tests, troubleshoot, participate in code reviews, and collaborate with designers. Requires 5+ years of experience with React.js and 3+ with TypeScript.

Build user-facing components for an AI-driven Forms Platform, creating responsive interfaces and collaborating on backend integrations while ensuring quality and performance.

Design and develop responsive frontend web applications, collaborate with UX and end users to gather requirements, ensure UI/UX feasibility and consistency, improve responsiveness, and support platform services used across engineering teams.