Top Senior Front End Developer Jobs

Own frontend domains end to end, including architecture, implementation, testing, production quality, performance, accessibility, and security. Set technical direction, design reusable component systems, establish testing strategies, diagnose complex browser and production issues, and partner with Product, Design, QA, and engineering teams. Mentor engineers, review consequential changes, and use AI-first development practices while maintaining accountability for shipped software.

Develops and maintains SharePoint solutions across legacy and modern environments. Designs frontend interfaces with HTML, CSS, JavaScript, jQuery, and React; creates workflows and REST API integrations; supports migrations, permissions, content management, testing, troubleshooting, and performance optimization. Collaborates with stakeholders to translate requirements into technical solutions and trains users on SharePoint best practices.

Leads frontend architecture and technical strategy for Scout Motors’ customer vehicle purchase journey. Builds performant, accessible React and TypeScript experiences spanning configuration, trade-in, financing, leasing, and delivery. Owns frontend performance, reliability, component libraries, design systems, architectural reviews, and engineering standards. Partners with product and design, mentors senior engineers, drives cross-team initiatives, and champions inclusive design and pragmatic AI-assisted development.

Build and maintain customer-facing frontend experiences across vehicle configuration, trade-in, financing, leasing, and delivery. Develop accessible, performant, well-tested React and TypeScript applications; integrate APIs and third-party services; optimize Core Web Vitals; contribute to component libraries and design systems; and own features from technical design through production. Collaborate with product, design, and backend teams while participating in reviews and applying AI-assisted development practices.

Designs, develops, modernizes, integrates, tests, and deploys front-end and full-stack software for RF SIGINT collection, processing, visualization, and mission systems. Builds real-time dashboards and interfaces, integrates back-end services and signal-processing pipelines, optimizes distributed systems, supports multiple operating environments, and maintains technical documentation. Provides technical leadership, mentors development teams, supports deployed-system validation, and ensures secure, high-reliability software meets mission performance and accreditation requirements.

Own frontend architecture, design systems, scalable components, UX-focused features, testing, deployment tooling, and observability. Partner with product and design to deliver customer-facing functionality, improve engineering workflows, support on-call operations, adopt LLM-assisted development, and mentor engineers. The role requires establishing frontend standards and patterns for a rapidly growing early-stage healthcare technology product.

Own frontend architecture for React and TypeScript applications supporting complex research and analytics workflows. Build performant, accessible interfaces; establish standards for performance, testing, accessibility, and CI quality gates; evolve shared component libraries and design systems; partner on API contracts; address technical debt; contribute to Django services; and mentor engineers while leading department-wide technical initiatives.

Develop and maintain scalable, responsive web applications for scientific instrumentation using ReactJS and TypeScript. Responsibilities include UI development, data analysis and instrument control software, reusable component libraries, performance optimization, testing, accessibility, troubleshooting, code reviews, architecture contributions, and cross-functional collaboration with UX, backend, product, and test automation teams.

Build and maintain user-friendly web interfaces for expense and procurement products using React and TypeScript. Implement micro frontend patterns, integrate with backend services via Apollo/GraphQL, collaborate with designers and PMs on shared UI components and design systems, participate in code reviews, triage bugs, and improve frontend engineering standards and observability.

Build scalable, high-performance frontend solutions for growth funnels, landing pages, and marketing campaigns using React and TypeScript. Drive experimentation and A/B testing, collaborate with product, design, marketing and data teams to optimize user journeys, prototype ideas rapidly, and uphold frontend best practices, security, and compliance to improve acquisition and engagement.

Lead frontend architecture and implementation for patient and provider web experiences at scale. Build accessible, performant realtime UIs, own end-to-end delivery, improve observability and reliability, contribute to technical roadmap, collaborate with PMs and designers, participate in on-call rotations, and drive engineering best practices.

Build, enhance, and maintain frontend web applications for data lake and warehouse products. Develop JavaScript, HTML, and CSS; use web frameworks, REST APIs, Git, and Unix tools; collaborate with designers, backend engineers, and data scientists; troubleshoot customer issues; provide application support; and write unit tests and perform quality assurance testing in a hybrid environment.

Build Farther’s conversational AI and generative UI experiences, including the frontend framework, validated interface renderer, agent-to-UI wire contracts, and developer APIs. Deliver production-ready assistant functionality, design for model uncertainty and failures, mentor engineers, document systems, and maintain quality through testing and code review.

Lead design and delivery of large, ambiguous frontend and platform initiatives. Shape frontend architecture, standards, and shared patterns; build shared foundations and customer-facing surfaces; improve developer experience, reliability, and performance; partner with design and product; and apply AI-enabled workflows to boost engineering leverage and quality.

Build and maintain the analyst-facing frontend for Kepler's AI research platform: high-performance, data-dense interfaces (spreadsheets, tables, streaming views) that surface cited, auditable values and verification workflows. Ship end-to-end features, optimize browser performance, implement real-time streaming UX, and ensure traceability from UI cells back to original sources.

Leads the design and development of complex frontend systems and product features using Angular and React. Architects scalable frontend patterns, improves performance and engineering velocity, drives testing and code-quality practices, and leads major technical initiatives. Partners cross-functionally with backend, product, design, integrations, and QA; makes technical decisions, mentors engineers, and advances frontend architecture and collaboration across teams.

Build and improve ClickUp’s core product experiences using Angular and React. Responsibilities include architecting reusable frontend code, collaborating with product, design, backend, integrations, and QA teams, improving performance and usability, maintaining unit and integration tests, resolving complex bugs, following state-management patterns, and mentoring teammates in a fast-paced environment.

Build and maintain frontend components for Ether.fi’s consumer DeFi products. Collaborate with designers to translate Figma designs into polished user experiences, develop client-side transaction and fund-management integrations, ship high-quality code, uphold frontend security practices, and contribute to refactoring and engineering excellence.

Lead development of an enterprise Sales Command Center web application using React and TypeScript. Build reusable frontend architecture, role-based workspaces, secure authentication, accessible and performant user experiences, API integrations, telemetry, analytics, and automated testing. Collaborate with iOS engineers on shared patterns and contracts, integrate with Microsoft Entra ID and backend services, and participate in client-facing engineering discussions.

Build and scale data-dense frontend interfaces that help compensation teams benchmark roles, price jobs, and make pay decisions. The role owns technical strategy and delivery outcomes, emphasizing performance, accessibility, interaction quality, reusable systems, and thoughtful prioritization. It also involves mentoring engineers, clarifying ambiguous problems, and contributing effectively in a fast-paced environment.

Lead ownership of Belfry's React Native/Expo mobile app and React web platform; establish frontend best practices, design systems, observability, and performance standards; contribute across the full stack (APIs, backend, integrations); deploy and scale production systems; mentor engineers and promote AI-assisted development workflows.

Design and implement frontend features for patient and provider web experiences at scale. Build realtime, accessible, high-performance interfaces, own application reliability and monitoring, contribute to architecture and technical roadmap, drive testing and observability best practices, collaborate cross-functionally, and participate in on-call rotations.

Build and scale high-performance React web applications and React Native mobile apps for real-time logistics operations. Lead frontend architecture, technical design, end-to-end project delivery, reliability and performance improvements, incident response, and debugging. Collaborate with backend and operations teams, make architectural decisions, improve scalability, and mentor engineers.

Design, build, and maintain provider- and care-team-facing web interfaces for clinical and operational workflows. Own features end-to-end, drive frontend architecture, optimize client-side performance and accessibility, collaborate with product/design/data/clinical teams, instrument metrics, and participate in on-call rotations to ensure reliable production systems.

Design, build, and maintain provider-facing web interfaces for clinical workflows. Own end-to-end frontend architecture, performance, accessibility, testing, observability, and reliability. Collaborate with product, design, data, and clinical teams, contribute to technical roadmap, and participate in on-call rotations to ensure production reliability.