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

As a Senior Software Engineer, you will design and maintain payment processing systems, ensuring secure and efficient client transactions, while mentoring other engineers and improving processes within the Payments & Blockchain team.

As a Frontend Engineer on the Growth Insights team, you'll drive analytics tracking and attribution models, optimize data flows, and collaborate across teams for robust data governance and marketing insights.

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

The Senior Front End Engineer will design, develop, and deploy web experiences, mentor junior engineers, and advocate for user-friendly solutions while engaging with cross-functional teams and ensuring high code quality.

As a Senior Frontend Engineer, you will lead frontend architecture, collaborate across teams, ensure quality, and mentor contributing engineers while integrating AI features.

The Senior Front-end Engineer will design and deliver scalable, user-friendly interfaces using React and Node.js, collaborating with cross-functional teams to enhance user experience and optimize performance.

The Senior Front-End Developer will build scalable React applications, lead UI architecture decisions, mentor team members, and optimize front-end performance using AI tools.

The role involves developing high-quality front-end software for freight logistics, mentoring junior engineers, and collaborating on customer experience projects using advanced frameworks.

Lead technical direction and contribute to the frontend codebase, building user-facing tools and mentoring team engineers to enhance user experiences.

Owner of the asset discovery experience across tokens, perpetuals, and prediction markets. Design, build, and scale features for web, mobile, and browser extension platforms. Lead initiatives to add blockchain support and new products, interface with users and developers for feedback, and help grow and hire a high-performing Discovery team.

Lead development of interactive React front-ends with Chakra UI and Mapbox, build data visualizations (Plotly/ApexCharts), optimize performance for large and real-time datasets, enforce front-end best practices, mentor engineers, and collaborate with product, design, and backend teams to deliver accessible, responsive interfaces.

The Senior Frontend Engineer will lead product development for a hotel marketplace, focusing on creating efficient tools for hotel partners and enhancing guest experiences. Responsibilities include ownership of product quality, roadmap execution, and supporting business-critical outages.

Lead frontend delivery for ticketing across React web and React Native mobile: design and ship resilient purchase, redemption, and event-day features, improve observability, testing, reliability, and mentor engineers while collaborating with product, design, and backend teams.

Lead frontend development and design-system creation, bridge design and code, maintain Storybook components, introduce AI-powered workflows, mentor teams, and deliver scalable B2B SaaS UI solutions.

Design, build, and maintain scalable React/TypeScript web applications for Keeper's Admin Console. Integrate with backend REST APIs, implement enterprise UI workflows (RBAC, policy config, audit views), ensure secure, well-tested frontend code, participate in architecture and code reviews, troubleshoot performance and usability, and maintain documentation.

Develop and maintain front-end applications using React and Next.js while integrating with eCommerce platforms like Adobe Commerce and Shopware. Collaborate with cross-functional teams to deliver high-performance user interfaces and optimize applications for scalability and accessibility.

As a Senior Frontend Engineer, you'll build and enhance LiveKit's dashboard for voice AI applications, focusing on user experience, performance, and collaboration with cross-functional teams.

As a Senior Software Engineer, you'll develop Hudl's front-end platform, build infrastructure using AWS and Terraform, and serve as a consultant for front-end work.

The Senior Frontend Engineer will implement and launch features for Slush Wallet, update frontend architecture, and collaborate with design and product teams.

Design and implement frontend systems using React and TypeScript, collaborate with product and design teams, mentor engineers, and contribute to backend services in Go.

The role requires developing scalable frontend components for a new application, ensuring high-quality releases while collaborating with engineering and QA teams.

Lead development of complex React applications, maintain reusable component libraries, optimize frontend performance and accessibility, translate Figma designs into responsive UI, collaborate on API design (Node/Python), use analytics to improve user journeys, and champion AI-augmented development workflows.

As a Senior Frontend Engineer, you will lead frontend development, mentor team members, design scalable architecture, and enhance UI quality using AI tools.

As a Senior Front-End Developer, you'll build responsive React/TypeScript interfaces, contribute to shared design systems, and collaborate with teams to enhance user interaction in healthcare technology.

Design and implement software front end applications, mentor developers, participate in planning and reviews, and ensure quality work on Clinical Solutions products.