Top Senior Front End Developer Jobs in Denver & Boulder, CO

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.

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.

The Senior Frontend Engineer will enhance core libraries, improve developer experience, and collaborate across teams to deliver platform capabilities that enhance user experience.

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.

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 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.

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.

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.

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

Develop and maintain scalable web applications using React.js and Next.js, build UI components, collaborate with teams, optimize performance, and ensure code quality.

Develop and deliver high-quality front-end software for freight logistics. Lead design, mentor junior engineers, and enhance customer experiences using modern frameworks.

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

Build and optimize a responsive Vue.js frontend for a customer-service SaaS, collaborate with product and dev teams, handle production support, participate in Agile ceremonies, perform code reviews, and mentor junior developers.

The Senior Staff Frontend Engineer will lead major frontend initiatives, contributing to application architecture, performance, and user experience while collaborating with engineers across the stack.

Lead front-end technical strategy for Coinbase Advanced trading platform: define and execute a scalable roadmap, deliver a low-latency interface across web and mobile, mentor engineers, anchor complex projects, and ensure high standards for code quality and system design.

The Front End Developer will build web applications using React, work with RESTful services, and handle authentication using SAML or JWT while collaborating in an agile environment.

Design, build, and optimize high-performance TypeScript and React single-page applications, mentor team members, and advocate modern frontend practices while collaborating with cross-functional teams.

Lead the design, implementation, and maintenance of scalable frontend solutions, mentoring junior developers, and optimizing performance and reliability of platform components.

As a Staff Frontend Engineer at ClickUp, you will lead complex frontend implementations, influence technical direction, mentor engineers, and enhance application performance across teams.

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

The Full Stack Engineer Lead will define frontend standards and practices, write production code, and mentor engineers while ensuring high engineering quality and system scalability.

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.