Top Front End Developer Jobs in Philadelphia, PA

Build and ship performant, polished frontend features using React/TypeScript. Refactor code incrementally, implement smooth animations, contribute to backend Node.js APIs when needed, use AI-assisted tools, own production deployments, and collaborate directly with CTO/CPO on product and design.

As a Senior Design Engineer, you will build and evolve the design system and frontend components, collaborate with teams, ensure code quality, and improve developer experience.

As a Senior Design Engineer at Benepass, you will build and evolve the design system, collaborate with Design and Product teams, and drive high-quality frontend development while improving developer experience.

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, you'll build the frontend Graph Semantic Layer with React and TypeScript, developing complex data visualizations and collaborating closely with design and product leadership.

As a Senior Frontend Engineer, you'll build and maintain a fraud prevention platform UI using ReactJS, collaborating with backend teams and ensuring code quality through tests and CI/CD processes.

Design, implement, and maintain frontend applications and internal tools. Own delivery of high-visibility features, collaborate with cross-functional teams, mentor peers, and ensure performant, accessible, polished user interfaces integrated with backend systems.

Design, implement, and maintain frontend and mobile applications for Trading API customers. Own high-visibility features end-to-end, ensure performance, responsiveness, accessibility, and mentor peers while collaborating with cross-functional teams.

Design and develop software for medical devices, collaborate with product and UI/UX teams, and ensure project adherence to quality standards.

Develop and maintain user interface elements, utilize Vaadin, and train team members on front-end development while focusing on customer experience solutions.

The Senior Software Engineer will develop features for Phantom's web platforms, lead new product initiatives, interface with users, and contribute to team culture.

The role involves building robust software solutions, mentoring engineers, analyzing business problems, and contributing to technical strategy in a collaborative environment.

As a Senior Frontend Developer, you will own major features, translate mockups to Vue 3 components, and collaborate with the product team to enhance user experience, ensuring high performance and accessibility.

As a Senior ASIC Front-End Design Engineer, you will oversee digital SoC design, collaborating to create automotive communication semiconductors, ensuring target performance and area goals are met.

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.

The Senior Frontend Software Engineer will design, develop, and enhance frontend capabilities on the Graykey platform, ensuring quality code and collaboration with design and QA teams.

Design and develop web applications, mentor teammates, shape architectural decisions, write clean code, conduct testing, and troubleshoot issues.

Looking for a Senior Front-End Developer with extensive Vue.js experience to enhance the Jibble 2.0 platform, collaborating closely with product teams.

The Senior Front-end Engineer will design and deliver scalable, user-friendly interfaces using React and Node.js, collaborating with cross-functional teams to enhance user experience and optimize performance.

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

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

As a Senior Frontend Software Engineer, you'll design and develop high-performance, data-intensive applications, optimizing user experiences while collaborating with team members to enhance application quality and performance.

As a Senior Front End Engineer, you will create custom UI components, develop marketing funnels, integrate payment gateways, and optimize performance using React.

The Frontend Platform Engineer III will build foundational frontend infrastructure, contribute to the development of shared packages, ensure reliability, and collaborate across teams to improve architecture and performance.