Top Front End Developer Jobs in Philadelphia, PA

Lead the design and implementation of core authentication infrastructure at Phantom, focusing on secure authentication systems, secrets management, and API integrations.

The Front-End Developer will design and maintain applications using Vue with TypeScript. Responsibilities include collaborating with teams, prototyping solutions, and ensuring application performance.

Develop and optimize front-end applications using React, collaborate with cross-functional teams, and implement best coding practices for UI components.

Develop and improve real-time drone tele-operations features, cloud-based products, and quickly prototype new front-end experiences while transitioning to a new tech stack.

The role involves leading software development efforts, mentoring team members, ensuring application quality, optimizing performance, and innovating new software solutions.

Design and build high-performance, data-intensive frontend applications for Loan Origination and Servicing platform. Collaborate with teams to deliver user experiences and optimize application performance.

The QA Engineer will ensure quality across web and frontend experiences, build automated test coverage, and improve release confidence through collaboration.

The Senior Frontend Engineer will develop user-friendly and scalable components for a data labeling platform, collaborating with teams and mentoring junior engineers.

Design and build the frontend experience for a social AI platform, including website redesign and web app development while focusing on UI/UX principles and user engagement.

The role involves developing large-scale applications using HTML, CSS, JavaScript, and React/WordPress, code reviews, and crafting UI components while ensuring high quality and accessibility.

The Senior Frontend/React Native Engineer will contribute to UI/UX improvements, ship key features, and refactor frontend architecture for Littlebird's applications.

You will architect, develop, and scale visualization of large AI datasets, produce maintainable code, and contribute to open source.

Seeking Senior Front-End Engineer for a 6-month contract to build high-performance UIs with Angular and Ionic, focusing on health technology and user experiences.

As a Senior Software Engineer, you will design, develop, and maintain high-quality applications using React, mentor engineers, and influence technical strategy.

Design, implement, and deliver high-quality, performant frontend interfaces. Collaborate with cross-functional teams, optimize for SEO and user experience, and mentor junior engineers.

The Senior Front End Engineer will architect scalable UI frameworks, set UI standards, mentor engineers, and ensure high-quality technical delivery for the Dragos OT Security Platform.

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.

The role involves developing and enhancing web applications using React, collaborating with teams, and ensuring code quality through testing and reviews.

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

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 and maintain a fraud prevention platform UI using ReactJS, collaborating with backend teams and ensuring code quality through tests and CI/CD processes.

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

Design and build media-rich web experiences for Zillow's 3D Home and Interactive Floor Plan products, optimizing for performance and accessibility while collaborating with cross-functional teams.

Lead Front End Software Engineer responsible for guiding technical direction in Angular development, collaborating with backend teams, and mentoring peers in a consulting environment.

As a Frontend Engineer on the Growth Insights team, you'll drive analytics tracking and attribution models, optimize data flows, and collaborate across teams for robust data governance and marketing insights.