Top Front End Developer Jobs in Denver & Boulder, CO

The Frontend Engineer II will design and implement front-end experiences for eCommerce applications, collaborate with product management, and write tests to ensure code quality.

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

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.

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

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

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.

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

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.

As a Staff Engineer in the Prime UI Platform Team, you'll design core systems for frontend experiences, focusing on reliability and performance. You'll lead architecture decisions, develop APIs, optimize data streams, and enhance developer tools while collaborating with frontend engineers and product teams.

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.

The role involves designing and developing user-friendly, robust React Native applications for a cloud-based platform, focusing on performance and team collaboration.

As a Principal Frontend Engineer at ClickUp, you'll lead the design and technical vision of scalable front-end systems using Angular, collaborating across teams and mentoring engineers to enhance performance and coding standards.

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.

The Front-End Software Engineer will develop and deliver software solutions, focusing on web-based command-and-control systems and training capabilities for defense applications.

The Product Frontend Engineer will design and build AI-driven applications, collaborate with teams, and ensure code quality and performance.

The Senior AEM Front-End Developer designs and builds scalable front-end solutions within Adobe Experience Manager, focusing on reusable UI components and collaborating with various teams to ensure high-quality user interfaces.

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

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

As a Senior Frontend Engineer at Zapier, you'll design and develop complex UIs, lead feature delivery, and integrate AI into products while collaborating with cross-functional teams.

As a Front-End Developer Intern, you will design and build web applications, collaborate with teams, participate in code reviews, and maintain code quality.