Top Front End Developer Jobs in Denver & Boulder, CO

Youtopia Marketplace seeks a Senior Front-End Engineer to develop high-performance UIs using Angular and Ionic for a 6-month contract, focusing on user experience and mobile application engineering.

Build and ship performant, accessible subscription and billing UIs. Implement plan selection, checkout, and billing management features using React/TypeScript, ensuring maintainable, tested, and high-quality front-end code. Collaborate with product, design, and cross-functional teams to improve monetization, conversion, and retention.

Lead architecture and build high-performance React 19 applications using TypeScript and modern patterns. Define design-system-driven components, optimize front-end performance, mentor teams, drive technical direction, and collaborate across product, design, and customers to deliver scalable enterprise UIs.

Develop and implement advanced UI applications for defense intelligence using TypeScript and React, mentoring junior engineers and collaborating with cross-functional teams.

The Senior Front-End Engineer will architect financial products, lead design discussions, mentor team members, and ensure high-quality application delivery.

Develop and integrate front-end components for online GIS applications, ensuring effective user experiences while collaborating with cross-functional teams to meet national security needs.

Lead architecture and development of front-end features for the Risk Cloud platform using Angular and TypeScript. Write and review tests and code, collaborate with product, design, QA, and engineering teams using Agile practices, and optimize the front-end for speed, reliability, and scalability while promoting testing-first and iterative delivery.

Lead architecture and implementation of a new frontend platform, define org-wide frontend best practices, mentor engineers, collaborate with product/design/backend, operationalize tools and CI/CD, drive cross-team initiatives, and ensure high-performance, maintainable, and accessible frontend systems.

The Senior Frontend Engineer will architect and develop core services using Angular, collaborating on design and maintenance of web applications, ensuring quality and security standards are met.

The Sr. Software Engineer, Front End will develop 2D and 3D frontend features, drive architectural direction, mentor junior engineers, and address technical debt under high accountability in a complex simulation environment.

Lead front-end development on a cross-functional team building user-focused UI features. Architect scalable, accessible component-based interfaces, ensure testing and quality, mentor engineers, and own features from inception through delivery.

As a Frontend Software Engineer at Coinbase, you'll enhance user identity experiences, collaborate with teams, and build reliable, scalable applications using React and TypeScript.

As a Front-End Engineer, you will create scalable and accessible UIs using React and TypeScript while collaborating with cross-functional teams to enhance the product's performance and quality.

As a Front End Engineer, you'll build and improve web applications using modern technologies, collaborate on UI design, and utilize AI-driven tools for efficient development.

Develop and maintain mobile infrastructure, enhance developer tools, collaborate on features, implement app release automation, and mentor team members.

Design and enhance frontend systems for user identity interactions at Coinbase, focusing on performance and reliability while collaborating across teams.

As a Frontend Engineer, you will develop mobile-first UIs in VueJS, enhance performance, mentor team members, and participate in code reviews and team ceremonies.

Develop and maintain engaging web and mobile applications using Ionic and Angular. Collaborate on front-end requirements and ensure high-quality, maintainable code while mentoring junior engineers.

Develop and maintain responsive web and mobile applications using Ionic and Angular. Collaborate with teams, integrate APIs, and optimize UI components.

The role involves leading the frontend platform's evolution, architecting user interfaces, partnering with backend developers, and overseeing testing standards and CI/CD infrastructure.

Lead the evolution of the frontend platform, design complex user interfaces, provide technical leadership, and optimize CI/CD infrastructure for a scalable experience.

As a Frontend Software Engineer II, you'll develop scalable UI experiences using React and Remix, optimize GraphQL infrastructure, implement tests, and collaborate closely with cross-functional teams.

The Senior Software Engineer will design and implement web applications using React and Typescript, ensuring security and scalability while participating in Agile processes.

The Lead Front End Engineer will enhance website development, lead teams, write code, and ensure high performance and scalable systems using modern frameworks.

The Front-End Developer will translate designs into responsive UI, build reusable components, optimize performance, and collaborate with cross-functional teams.