Top Front End Developer Jobs in Denver & Boulder, CO

The Staff Frontend Engineer will lead frontend architecture, build high-performance React applications, mentor junior engineers, and collaborate closely with product teams to enhance user experiences.

As a Staff Frontend Engineer, you will lead frontend architecture, drive design system evolution, and oversee the migration from legacy to modern frontend while mentoring engineers and delivering AI-native product experiences.

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.

Develop innovative UI and web systems, managing project priorities and deadlines while working within a collaborative team environment.

Develop and optimize frontend systems for the Purchasing Integrations team using JavaScript frameworks, while ensuring performance and integration within diverse merchant environments.

Lead the frontend platform's evolution, architect complex UIs, mentor engineers, and drive performance and testing excellence while collaborating with cross-functional teams.

The Principal Software Engineer leads the development of high-performance React applications, mentors teams, and drives engineering excellence through innovative practices and technical direction.

The Principal Frontend Engineer will lead frontend design efforts, mentor engineers, and ensure quality solutions that meet product requirements, while collaborating with cross-functional teams.

As a Front End Engineer, you will build polished front-end experiences for Decile Hub, using a Rails codebase and ensuring UI consistency and quality. You will work closely with product and design teams to implement functional and aesthetically pleasing user interfaces while utilizing AI tools to enhance your workflow.

Seeking a Senior Software Engineer to develop consumer-facing applications using React and React Native, influence technical strategy, and mentor engineers.

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

Develop and maintain WordPress websites, create custom themes and plugins, ensure cross-browser compatibility, and optimize for SEO. Provide guidance on user experience and explore new technologies.

As a Senior Frontend Engineer, you will develop and maintain the Chess.com platform, troubleshoot issues, and work with design and development teams to enhance user experience.

The Frontend Engineer will enhance software delivery through observability products, drive end-to-end feature development, mentor teammates, and advance engineering standards, leveraging expertise in frontend technologies and collaboration with cross-functional teams.

Contribute to the development of web-based frontend space ground system software, collaborating with teams and ensuring code quality through testing and reviews.

Lead frontend architecture for menu management workflows, developing scalable UI, collaborating with teams, and mentoring engineers while ensuring system reliability.

Lead frontend architecture for menu management, design scalable UI patterns, collaborate with teams for UI solutions, and mentor peer engineers.

Build and ship geospatial web applications as a Senior Front-End Engineer, focusing on interactive UI features in a TypeScript/React environment.

Lead technical direction for a TypeScript/React application, set standards, design UI patterns, mentor engineers, and drive execution in a mission-sensitive environment.

As a Front-End Developer, you'll deliver user-friendly applications by developing responsive front-end applications, collaborating with teams, and ensuring code quality through testing and best practices.

As a Frontend Developer, you'll work on core applications and microservices, shaping features and optimizing user experience, while collaborating with the team to improve code quality and reduce technical debt.

As a Frontend Engineer at UpDoc, you will develop and maintain patient and provider applications using SvelteKit and TypeScript, ensuring reliable data flows and user accessibility.

As a Frontend Engineer at Files.com, you'll develop robust features using React and TypeScript, architect scalable systems, and collaborate across teams to improve usability for enterprise customers.

Lead the frontend technical direction for spacecraft modeling and simulation software, driving strategic initiatives, mentoring engineers, and shaping product direction.

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