Top Senior Front End Developer Jobs

As a Senior Frontend Engineer, you'll build high-performance applications, collaborate with teams on user experience, and ensure coding security.

The Senior Frontend Engineer will own feature development, enhance CircleIn's frontend products, build efficient systems, and mentor team members.

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.

Design and implement user interfaces for autonomous surface vehicles, mentor teammates, and improve software engineering practices within the team.

Design, develop, and modernize front-end web and offline-capable mobile applications; migrate legacy JavaScript to modern frameworks; build CI/test tooling and synchronization for offline data; estimate and deliver projects; troubleshoot and mentor peers; communicate with technical and non-technical stakeholders.

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.

Own and architect the frontend foundation for Handshake AI Enterprise: establish component system, design tokens, engineering patterns, shared libraries, and ship production-grade UIs while collaborating with AI and platform teams to ensure scalable, maintainable, high-performance enterprise deployments.

Design and build responsive, accessible, high-performance web interfaces. Collaborate with designers and back-end developers, write clean code, test/debug for cross-browser compatibility, and meet project deadlines.

Lead frontend development: turn wireframes and designs into standards-compliant, responsive code; optimize performance; ensure cross-browser compatibility; implement A/B testing and analytics; collaborate with small dev team and maintain version control.

Senior front-end developer responsible for building performant, accessible, responsive web UIs using AngularJS and related client-side frameworks, consuming APIs, writing unit tests, and following Agile practices. Collaborate on architecture, ensure cross-browser compatibility, and deliver scalable solutions on Tomcat/UNIX-Linux-Windows platforms.

Senior front-end/UI developer responsible for building responsive, standards-compliant client-side applications using AngularJS and other MVC/templating frameworks, consuming JSON/REST/SOAP APIs, ensuring performance, accessibility, cross-browser support, unit testing, and working with version control in Agile teams.

The Senior Frontend Engineer will develop and enhance the Navigator platform using Vue.js, improve user experience, maintain CI/CD workflows, and collaborate with cross-functional teams.

Lead full‑stack engineering projects to scale document ingestion, design multi‑jurisdiction data collection, and build government‑grade security. Deliver AI‑native features across web, desktop, mobile, editors, and APIs. Ship full‑stack solutions using React/TypeScript frontend and Python/Postgres backend while ensuring scalable, extensible architectures that delight enterprise customers.

As the first dedicated frontend engineer, drive frontend architecture, build reusable design systems, ship React interfaces, and mentor engineers. Collaborate across teams to simplify workflows and define UI standards in a high-performance web application environment.

Build and architect React/TypeScript web applications powering internal engineering tools (simulation, fleet tracking). Collaborate with simulation, analytics, and ops teams to integrate systems, shape APIs, and deliver performant, reliable UIs that enable diagnostics, scenario mining, and fleet configuration.

The Senior Frontend Engineer will develop mobile web products using React Native and TypeScript, collaborate with designers, write clean code, and integrate UI components with backend services.

Design, develop, and optimize responsive React web applications. Collaborate with product and backend teams to integrate APIs, write unit tests, perform code reviews, and deliver scalable, high-quality front-end solutions from concept to deployment.

Build scalable React/TypeScript frontends to visualize and interact with large-scale, real-time telemetry. Define data models and workflows, optimize rendering and performance, collaborate with product, design, and backend teams, and turn ambiguous requirements into intuitive, mission-critical interfaces for technical users.

As a Senior Software Engineer I, you'll develop scalable frontend applications using React and TypeScript, lead engineering reviews, mentor team members, and collaborate on technical roadmaps for mission-critical software.

Lead frontend architecture and design for high-availability cloud services, drive AI-first engineering practices, mentor engineers, integrate AI-assisted tools, and optimize web performance, observability, and operational efficiency while collaborating with Product and Design.

Design and implement accessible interactions in the Canva Editor: focus management, keyboard navigation, live regions, and ARIA roles. Use screen readers daily to test and debug, collaborate across teams to review designs and PRs, identify systemic accessibility gaps, and build architectural solutions to improve accessibility across complex frontend systems.

Design, develop, test, and maintain front-end applications for mission management systems. Implement responsive UIs from mockups, build reusable components, integrate with REST/GraphQL backends, apply accessibility and performance best practices, participate in code reviews and testing, collaborate with designers/product/backend/QA, and meet program milestones. Role may be staffed at Software Engineer or Principal level and requires operating in a fast-paced, collaborative, on-site defense R&D environment.

Develop and maintain Ubegos frontend products: mobile/web quest experiences, user and creator dashboards, admin panel, marketing features, and third-party integrations. Work in one-week Scrum sprints, perform code reviews, contribute to software architecture, and use modern frontend frameworks, relational databases, and AI-assisted coding tools.

Develop responsive, user-facing web application components for a centralized AI/ML annotation and model repository. Translate UI/UX designs to interfaces, integrate with backend services via REST/GraphQL, implement performance and security best practices, and author frontend tests and automation. Participate in Agile development and collaborate with end users and designers while maintaining operational systems.

The Senior Software Engineer will design scalable Node.js and TypeScript systems, mentor junior engineers, and improve architectural patterns for resilience in a fast-paced environment.