Top Full-Stack Engineer Jobs in Denver & Boulder, CO

As a Full-Stack Engineer at Clerkie, you will develop and maintain a B2B CRM, optimizing performance across the tech stack and collaborating with various teams to ensure a seamless user experience.

As a Staff AI Software Engineer, you'll develop and optimize scalable AI applications, manage deployment pipelines, and collaborate with cross-functional teams to drive innovative solutions.

The Full Stack Engineer will develop features for a dynamic web application, collaborate with team members, enhance performance, and improve automated tests.

Join Comcast as a Full Stack Engineer to develop user interfaces and backend services. Collaborate with teams to build scalable API services and enhance user experiences using modern web technologies.

Design, build, deploy, and optimize scalable full-stack applications integrating databases, APIs, and AI/LLM workflows. Lead architecture, CI/CD (ArgoCD, GitLab), Airflow pipelines, and collaborate cross-functionally to deliver production-grade fintech solutions.

Responsible for leading a team of engineers, supporting product development, identifying technical issues, and ensuring high-quality code delivery in backend systems at scale.

The Senior Full-Stack Engineer will lead technical areas, develop AI application services, maintain APIs, collaborate on design, and ship product features.

As a Fullstack Engineer, you'll design, build, and operate web applications, collaborating with product teams and mentoring peers while ensuring best practices in coding and system architecture.

Lead and modernize core Laravel/PHP backend systems and high-performance React/TypeScript frontends. Architect integrations (MLS/RETS/RESO), improve video processing and media delivery, strengthen CI/CD and Docker deployments on AWS/Rackspace, introduce AI-driven automation, and provide senior technical leadership and mentorship.

The Salesforce CPQ Developer designs and develops scalable solutions on Salesforce, collaborates with cross-functional teams, and implements enhancements and projects for increased sales efficiency.

As a Senior Full-Stack and Platform Software Engineer at mabl, you will develop features for an AI-powered test automation platform, enhancing user experiences, designing APIs, and optimizing data pipelines while collaborating with cross-functional teams.

As a Software Engineer I, you'll contribute to the Home and Search Experience team at Affirm, collaborating on backend systems and APIs, ensuring quality code, and driving user engagement initiatives.

Develop and deploy software solutions in high-security environments, leading engineering teams and collaborating with customers to meet mission objectives.

As a Fullstack Software Engineer, you'll design, develop, and maintain scalable frontend and backend systems while collaborating across teams.

The Fullstack Engineer will develop and enhance a VA patient portal using Ruby and React, focusing on user experience, performance, and security, while collaborating with a cross-functional team in a remote setting.

The Full Stack Engineer will architect, implement, and maintain user-facing applications, improve UX, and design internal tools while collaborating with a team in a startup environment.

The Full Stack Engineer will build cloud-based applications, collaborate with teams, and utilize AWS technologies to deliver solutions.

Develop and maintain web applications using Angular and NestJS/PHP. Manage MySQL databases and contribute to API design. Engage in client interactions and project planning while ensuring code quality and adhering to best practices.

Design, build, and maintain resilient full-stack services for distributed financial SaaS systems. Lead end-to-end projects, optimize performance, ensure security and observability, mentor teams, and reduce technical debt.

As a Full Stack Engineer, you will design and maintain features using C# and .NET, enhance UIs with React JS, manage SQL Server databases, and support AWS cloud infrastructure.

Develop scalable applications for an AI-driven Talent Intelligence Platform, focusing on both front-end and back-end development, while integrating AI features.

You will own the delivery of AI features, design and build applications utilizing LLMs, and work across the tech stack with a focus on user experience.

As a Full Stack Engineer III at Calendly, you'll develop features, scale the platform, and mentor team members while using various technologies.

As a Staff Frontend Engineer, you will lead frontend development, mentor engineers, optimize performance, and collaborate on user experience and architecture.

The Full Stack Developer will create web applications, integrate APIs, manage databases, and troubleshoot software issues while collaborating with teams. Candidates should have extensive experience in software development and knowledge of best practices in web app design.