Top Front End Developer Jobs in Denver & Boulder, CO

As a Staff Frontend Engineer, you'll drive frontend architecture decisions, implement UI systems, and collaborate closely with design and product teams to enhance user experiences using AI tooling.

Design and implement frontend components for the Solidity compiler, optimize performance, develop integration layers, and collaborate with researchers to enhance security features.

The Frontend Developer will design, build, and enhance user interfaces, collaborate with project teams, maintain responsive designs, debug issues, and ensure high performance.

Lead architecture and development of a high-performance, responsive trading web app using React/Next.js/TypeScript. Own features, optimize performance (mobile-focused), integrate real-time data/WebSockets, maintain clean code, and collaborate with founders and cross-functional teams to drive product decisions.

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

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

The Frontend Engineer will design and maintain backend systems for growth initiatives, focusing on A/B testing frameworks, microservices, and performance metrics, while collaborating cross-functionally.

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.

The Frontend Engineer role involves developing scalable web applications using Angular, ensuring high-quality user experiences, optimizing performance, and collaborating with backend teams. Responsibilities include code reviews, testing, and supporting deployment processes.

The Front-End Engineer will develop and optimize production React applications, collaborating with cross-functional teams to deliver high-quality UIs and maintain component libraries.

The Staff Frontend Engineer will develop shared frontend libraries, enhance performance, and manage a design system to improve user experiences.

Build front-end features for Backpack Exchange, optimize performance, and manage projects from start to finish with a focus on React.

You will drive the product's frontend look and feel, build UIs for complex data, ensure consistent designs, and enhance development velocity. This role requires strong React/TypeScript skills, a builder's mindset, and a focus on performance and design sensibility.

Develop user-facing features using Vue.js, collaborate with back-end engineers, optimize performance, maintain code quality, and stay updated on blockchain trends.

The Front-End Developer will create user interfaces using Vue.js, optimize application performance, collaborate with teams, and maintain code quality through testing and reviews.

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

The Frontend Engineer will build user-facing interfaces for AI software development, utilizing technologies like TypeScript and React, while ensuring code quality and user experience.

The Frontend Engineer will develop user interfaces utilizing React and other technologies to enhance community knowledge organization and data interaction.

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.

The Frontend Engineer will implement UI features, automate UI testing, and oversee production releases while focusing on user experience in the blockchain space.

We are seeking a Senior Frontend Software Engineer to build advanced web applications using JavaScript and ReactJS, collaborating with a team to enhance user experiences.

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 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 Staff Front End Engineer, you will lead the front end vision, drive architecture decisions, and mentor engineers while developing high-impact web applications in a collaborative environment.