Top Front End Developer Jobs in Portland, ME

The Senior Front End Engineer will develop features for the MONOPOLY GO! Chat app, collaborate with teams, ensure app quality, and utilize AI tools for engineering tasks.

Develop responsive, well-tested web applications and lead frontend engineering initiatives while fostering technical excellence and improving frontend practices.

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 Front-End Developer, you will develop and optimize a Shopify Headless storefront using React, ensuring high-quality, responsive web experiences and collaborating with design teams to create pixel-perfect interfaces.

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.

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

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

Design, develop, and maintain efficient user interfaces for OTT products; collaborate with designers and backend developers; optimize front-end performance.

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.

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.

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

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.

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.

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

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.

Owner of the asset discovery experience across tokens, perpetuals, and prediction markets. Design, build, and scale features for web, mobile, and browser extension platforms. Lead initiatives to add blockchain support and new products, interface with users and developers for feedback, and help grow and hire a high-performing Discovery team.

The role involves designing, building, and implementing new services, working closely with the product team, and taking ownership of projects from 0 to 1.

Design, build, and maintain scalable React/TypeScript web applications for Keeper's Admin Console. Integrate with backend REST APIs, implement enterprise UI workflows (RBAC, policy config, audit views), ensure secure, well-tested frontend code, participate in architecture and code reviews, troubleshoot performance and usability, and maintain documentation.

The Senior Frontend Engineer will implement and launch features for Slush Wallet, update frontend architecture, and collaborate with design and product teams.

Build intuitive interfaces for construction workflows using React and TypeScript, optimizing performance and creating data-rich dashboards.

As a Senior Frontend Engineer, you will lead frontend development, mentor team members, design scalable architecture, and enhance UI quality using AI tools.

As a Senior Frontend Engineer, you will optimize performance across the platform, analyze client traffic, and implement fixes for performance issues. You'll collaborate across teams, advocate for best practices, and ensure a high-quality user experience.

Responsible for leading the architecture and development of scalable web applications, optimizing performance, and mentoring junior developers.