Top Senior Front End Developer Jobs in Portland, ME

The Senior Software Engineer will lead frontend development using React for Afresh's AI grocery platform, mentoring engineers and collaborating across teams to enhance web solutions.

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 Frontend Engineer will build and enhance core product experiences using Angular 2+ and React, ensuring high-quality code and collaboration with other teams.

As a Senior Frontend Software Engineer, you'll lead the development of major features using React and TypeScript, ensuring performance and integration with backend systems. You'll also manage releases, improve team efficiency, and contribute to a customer-centric product experience.

Design and implement front-end features, build high-quality user interfaces, take ownership of product and architecture decisions, collaborate with engineering team, and deliver performant, user-focused solutions.

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.

Own and evolve the front-end architecture for a high-throughput, real-time trading app using Next.js, React, and TypeScript. Build pixel-accurate, accessible, responsive UIs under strict performance budgets; optimize rendering, state management, data flow, and bundle size for sub-second interactions. Integrate with REST and WebSocket APIs, lead end-to-end feature development, set engineering standards, mentor engineers, and contribute across the stack when needed.

The Senior Full Stack JavaScript Developer will build and maintain user interfaces using React and Next.js, integrate with Node.js backends, and guide other developers. Responsibilities include ensuring accessibility, performance, and reliability of features, engaging in code reviews, and collaborating closely with product teams.

The Senior Front-End Engineer will solve complex architecture problems, develop features using Vue, optimize performance, and collaborate with cross-functional teams.

As a Senior Frontend Engineer, you will design and build web applications, owning major UI projects, collaborating with cross-functional teams, and optimizing performance for a seamless user experience.

Design and implement scalable frontend solutions using JavaScript/TypeScript and React. Drive architecture discussions, ship features with minimal guidance, maintain code quality and styling standards, collaborate across agile teams, ensure performance and scalability, and manage end-to-end feature lifecycles in a fast-moving environment.

Lead the design and development of frontend architecture, prototype features, establish coding best practices, and mentor engineers. Collaborate with design and backend teams to enhance user experience.