Top Front End Developer Jobs in Milwaukee, WI

Build and ship polished, accessible, high-performance front-end features for Deepgram's Console and Playground. Partner with product and design to translate ideas into incremental releases, improve internal tools, and uphold front-end engineering standards through code reviews and design discussions.

Build and own end-to-end full-stack systems for AI-powered agentic trading across web and React Native mobile. Implement real-time, low-latency UIs and Go backend services, integrate streaming AI/ML features and market data, drive architecture and code quality, and collaborate with AI/ML, design, and product teams to ship production-ready features used by millions.

Lead frontend-leaning full-stack implementation work for carrier and enterprise integrations: architect reusable UI and API layers, author RFCs, guide technical delivery, enforce testing and security best practices, and partner with cross-functional teams to scope and ship production integrations.

This role involves leading web platform initiatives, mentoring senior engineers, architecting web applications, and implementing technical strategies for improved performance.

Architect and build a high-performance, low-latency trading web platform. Integrate real-time market data and execution workflows, collaborate cross-functionally on large initiatives, and deliver scalable, performant, user-focused frontend applications with strong attention to API design, tooling, and developer experience.

Lead front-end technical strategy for Coinbase Advanced trading platform: define and execute a scalable roadmap, deliver a low-latency interface across web and mobile, mentor engineers, anchor complex projects, and ensure high standards for code quality and system design.

Build and own end-to-end frontend experiences for Coinbase card products across web and mobile. Ship high-scale consumer features, improve payment flow performance and SLOs, reduce latency and CX contacts, mentor engineers, and collaborate with product, design, and backend teams to deliver reliable, user-focused card functionality.

Build and own complex frontend features using Vue 3 and TypeScript while developing the Python services and APIs that power them. Improve performance, accessibility, testing, CI/CD, and observability; collaborate with product and design; mentor engineers and apply AI-assisted development tools responsibly to accelerate productivity and maintain quality and security.

Own end-to-end frontend development for core crypto payment flows across web and mobile. Improve latency, availability, and SLOs; build user-facing features (contacts, real-time transaction status); identify and fix performance bottlenecks; partner with product/design/backend; mentor junior engineers to reduce customer friction at scale.

Lead architecture and delivery of large-scale React and React Native frontends. Define frontend strategy and best practices, build shared component libraries and design systems, optimize performance and accessibility, collaborate with product/design/backend teams, mentor junior engineers, and resolve complex frontend and cross-stack issues.

Design and develop Java/J2EE applications and frontend UI using Angular or React. Build SOAP/REST web services, RESTful APIs with Node.js or Spring Boot, use Struts/Spring/Hibernate and JMS, work with SQL and document databases, configure application servers (WebSphere), and lead client-facing, insurance-domain projects.

Develop and maintain Java/J2EE applications using Struts, Spring, Hibernate and JMS; build SOAP/REST web services and RESTful APIs with Node.js or Spring Boot; implement front-end UIs with Angular or React and Bootstrap/Foundation; work with SQL and document databases; configure WebSphere and application servers; collaborate with clients and stakeholders in the insurance domain.

Lead the frontend of a large healthcare application using TypeScript and React. Guide architecture, conduct code reviews, enforce test-first practices, and embed WCAG/Section 508 accessibility. Integrate AI coding assistants, collaborate on RESTful API integration with backend teams, mentor engineers, and participate in Agile planning and release readiness for a customer-facing product serving millions.

Volunteer Principal Front End Developer to build React/React Native web and mobile features, mentor engineers, implement scalable full‑stack solutions, ensure cross‑browser compatibility and testing, work with Node/MongoDB/AWS, attend weekly standups, and support a fundraising launch. Minimum 4 hours/week commitment.

Own and evolve Roo's frontend platform and design system, building tooling, developer workflows, AI-assisted integrations, and migration paths to modern libraries (web and mobile). Partner with Product and Design, improve developer experience, and remove friction so teams can ship high-quality, consistent features rapidly.

The Frontend Engineer role involves developing scalable web applications using Angular, ensuring high-quality user experiences, optimizing performance, and collaborating with backend teams. Responsibilities include code reviews, testing, and supporting deployment processes.

Lead frontend technical direction for the Trellis design system: design and build a production component library, define accessibility and theming models, create tooling and migration pipelines (codemods, refactoring automation), leverage AI coding agents, mentor senior engineers, and partner with PM/UX to drive frontend architecture and adoption across product teams.

Develop and maintain user interfaces and digital marketing tools, build reusable scalable front-end code, collaborate with back-end and cross-functional teams, troubleshoot and optimize site interaction and UX, lead projects, and stay current with web best practices and new technologies.

Lead frontend architecture and technical strategy for a collaborative work platform. Build scalable React/TypeScript applications, design systems, real-time collaboration (sync, offline, serialization), optimize performance and observability, mentor engineers, and collaborate with Product, Design, and Backend teams to deliver high-quality, maintainable user experiences.

Build and maintain Plane's local-first browser client surfaces: large, virtualized workspaces, collaborative editor, offline/caching layers, and shared design-system components. Work cross-functionally with designers and backend engineers, extend sync and conflict-resolution behavior, optimize rendering performance, and triage cross-browser and self-hosted issues.

Build and maintain a React + TypeScript customer-facing analytics application, creating dashboards, interactive visualizations, and accessible interfaces. Collaborate with product, design, and backend to shape APIs, frontend architecture, and shared component libraries while owning performance and code quality.

3-month contract Frontend Engineer to build client-facing UIs and integrations for cybersecurity use cases. Collaborate with product, design, and engineering to deliver secure, performant, scalable features, maintain component libraries and automated tests. Remote (GMT+8) role focused on TypeScript and modern web tooling.

Lead frontend platform architecture across web and mobile: design and evolve design systems, component libraries, build tooling, accessibility, internationalization, and developer experience. Partner with backend teams on GraphQL/Python, maintain security and compliance, mentor engineers, drive cross-team initiatives, and deliver scalable, high-quality frontend foundations used by multiple product teams.

Lead technical direction and contribute to the frontend codebase, building user-facing tools and mentoring team engineers to enhance user experiences.

Build, test, and optimize responsive web applications using Next.js and React. Collaborate with designers and back-end developers, implement UI/UX designs, write clean maintainable code, and debug front-end issues to ensure high performance across devices and browsers.