Top Senior Front End Developer Jobs

Build and refine front-end experiences for web and mobile: onboarding, checkout, gallery features, design system and enterprise dashboard. Collaborate closely with designers and PMs, ship fast, maintain aesthetic quality, and iterate with user feedback using React, Next.js and TypeScript.

Build and refine customer-facing React features and internal dashboards, implement TypeScript-based UIs in strict mode, integrate frontend with backend APIs, and contribute to product and design decisions for an AI-driven scheduling assistant.

Leads Slack frontend infrastructure initiatives focused on performance, scalability, resiliency, reliability, and developer productivity. Designs and evolves core systems including WebSocket infrastructure, boot processes, React and Redux layers, logging, and alerting. Drives architectural decisions, large-scale modernization efforts, cross-team alignment, technical strategy, mentoring, and knowledge sharing.

Build and scale React applications for healthcare claims auditing and operations workflows. Own frontend architecture, state management, component design, performance, accessibility, testing, build tooling, and CI/CD. Collaborate with backend, product, and design teams on API integration and user experiences. Resolve complex frontend issues, contribute to code reviews, and establish scalable engineering best practices. Preferred experience includes B2B SaaS, healthcare or regulated industries, design systems, data-dense applications, and AI-powered frontend features.

Hands-on Senior Front-End Developer building scalable React + TypeScript applications. Responsibilities include feature development, reusable accessible component libraries, complex forms, API integration, performance optimization, frontend architecture, observability, testing, and improving developer experience across the TanStack ecosystem.

Design, build, and optimize scalable front-end features for global ticketing platforms. Provide technical leadership, write RFCs, mentor developers, perform code reviews, ensure performance and security, support releases and incidents, and collaborate cross-functionally to deliver high-performance B2B and customer-facing applications.

Design, build, and optimize front-end features for global ticketing platforms. Provide technical guidance, write RFCs, support releases and incidents, mentor developers, perform code reviews, and integrate third-party systems while focusing on performance and scalability.

Build responsive enterprise web applications for digital banking using React, TypeScript, JavaScript, and GraphQL. Develop reusable UI components, integrate Apollo Client, implement state management, optimize accessibility and performance, troubleshoot production issues, and collaborate with backend engineers, product owners, designers, and QA in an Agile environment.

Build and maintain Microsoft Ads front-end UI for campaign management. Collaborate with PMs and designers to design, implement, and operate features, build metrics, and integrate AI-powered capabilities to improve product and engineering productivity.

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.

The Front End Developer will create responsive designs, work with web standards, and collaborate with teams using technologies like HTML, CSS, JavaScript, and .NET.

Build and own frontend features for an AI-native automated testing platform using TypeScript and React. Solve ambiguous product and technical problems, ship high-quality code, collaborate with a small founding team, and work in-person in San Francisco.

The Frontend Software Engineer will develop and maintain web applications, ensuring high-performance, accessible UI components using Angular and TypeScript while collaborating within Agile frameworks.

The Software Systems Engineer will design, develop, and optimize web applications using Java, UI frameworks, and performance tuning techniques in an Agile environment.

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.

The role involves leading front end development using Java and AngularJS, discussing solutions with clients, and ensuring high usability standards in UI development across projects.

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 role involves developing interactive and scalable visualizations for complex infrastructure data, ensuring high performance and collaborating with engineering teams.

The Sr. Front-End Full-Stack Developer will design, implement and maintain features for a commercial software platform, collaborating closely with teams and ensuring high quality through testing and operations.

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.

Build AI-powered frontend applications and design systems to support GTM and marketing workflows, collaborate with design and growth teams to increase qualified leads, and improve engineering processes and UX.

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.

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.

Design, develop, and maintain high-performance, responsive front-end web applications in an AWS GovCloud environment. Collaborate with UX and back-end teams to implement mockups, ensure accessibility, optimize performance, maintain cross-browser compatibility, and uphold code quality and security/compliance standards.