Top Senior Front End Developer Jobs in Boston, MA

Lead design and build of internal web visualization tooling for ML and AV teams. Architect scalable React/TypeScript/Vue frontends, collaborate cross-functionally, drive performance and UX best practices, mentor engineers, and deliver mission-critical data-heavy UI systems.

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.

Build and maintain TypeScript/React frontends and SDKs for the Nomina web3 platform, create user-facing dapps, improve developer documentation and DX, and collaborate with product and engineering to deliver high-quality, mobile-friendly features.

As a Senior Frontend Engineer at Cinch, you'll lead the modernization and performance optimization of React-based user interfaces, collaborate with cross-functional teams, and architect scalable UI systems with a focus on AI-driven experiences.

Own and build the JTX frontend across web and mobile: real-time order books, charts, order entry, positions, wallet/signing flows. Optimize for low-latency streaming data, performance, security, and cross-platform consistency while making long-term architectural decisions and shipping rapidly.

Lead frontend architecture and execution for high-traffic Search features using React and TypeScript. Build map-based visualizations, optimize client-side performance and state management, collaborate with product/design/backend, conduct code reviews, mentor peers, and ship production-grade web features.

Lead and own the frontend for a perpetuals exchange using TypeScript and React. Design order entry, positions, pricing displays, and charts, make trader-focused UX decisions, and operate autonomously on a small, fast-moving team.

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

Develop and enhance user-facing features for an LLM observability platform using React and TypeScript. Build reusable components and front-end libraries, translate designs into performant UI code, optimize cross-device/browser performance, and collaborate with backend engineers and designers to improve usability.

Lead frontend architecture and implementation for an AI-driven platform: build performant, responsive React/TypeScript applications, manage complex state and real-time updates, establish component libraries, testing, CI/CD, mentor junior engineers, and drive frontend best practices and scalability.

Own frontend features from concept through launch and iteration. Build web and mobile applications for a wallet-as-a-service platform, develop SDKs and integration tools, and create secure, intuitive fintech-grade user experiences. Collaborate with Product and Design, write documentation, review code, and maintain high standards for architecture, performance, and security.

Lead frontend development for a DeFi platform, owning React and TypeScript architecture, Solana integrations, transaction flows, real-time blockchain data, and high-performance user experiences. Collaborate with product, design, and backend teams to deliver features, establish engineering standards, review code, and mentor future frontend hires. The role requires production frontend expertise, deep Solana knowledge, and leadership of projects or 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.

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.

Develop and maintain WordPress websites, create custom themes and plugins, ensure cross-browser compatibility, and optimize for SEO. Provide guidance on user experience and explore new technologies.

Build, maintain, and optimize marketing websites, landing pages, microsites, and reusable front-end components. Manage WordPress themes/plugins and multi-environment deployments via GitHub. Use Astro and modern front-end tooling alongside AI-assisted development to improve performance, accessibility, SEO, and analytics integrations while collaborating with design, marketing, product, and engineering stakeholders.

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

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.

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 and maintain scalable, responsive, high-performing web applications using Angular, JavaScript, and TypeScript. Collaborate with product managers, UX designers, backend engineers, and QA teams to deliver quality digital experiences. Integrate REST APIs, implement reusable component and state-management patterns, troubleshoot issues, optimize performance, and support Agile/Scrum development while using monitoring, testing, and source-control tools.

Lead frontend architecture for Legion’s real-time Command & Control platform, enabling operators to plan and direct large swarms of heterogeneous aircraft. Build collaborative, resilient interfaces for telemetry, sensor data, scheduling, crew resources, and data-link management during intermittent communications. Establish frontend standards, mentor engineers, and deliver performance-sensitive applications with strong CI/CD, QA, and DevSecOps practices.

Build and lead scalable frontend products for Airbnb’s Community Support Engineering organization. Responsibilities include architecting web applications, developing reusable frontend components, designing supporting server-side APIs, implementing testing and experimentation, optimizing accessibility and performance, collaborating with product, design, machine learning, and generative AI teams, shaping technical direction, and mentoring junior engineers.

Build and maintain a polished web portal for a premium banking and travel rewards platform using React. Collaborate with designers and engineers on feature scope and product direction, participate in code and design reviews, write well-architected code, tests, and documentation, establish frontend architecture standards, and mentor team members. The role also involves database and API integrations in a fully remote startup environment.

Build and maintain intuitive frontend web applications for data upload, search, visualization, and interactive 2D/3D geospatial tools. Collaborate with scientists to design complex visualizations, modernize the frontend stack, mentor junior developers, and implement automated UI testing and deployment pipelines.

Develop and enhance interactive enterprise planning, reporting, and analytics web applications using SAP Analytics Cloud and front-end web technologies. Build UI/UX components, integrate REST APIs, optimize performance and scalability, review designs, document changes, participate in code reviews, and collaborate with technical teams. The remote role supports a Washington, DC-based federal customer and requires Public Trust clearance and U.S. citizenship.