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

The Senior Full Stack Engineer will design, build, and manage authentication systems, ensuring secure access and a great user experience. This role requires collaboration with security and mission teams, shaping the direction of the API and user management workflows while mentoring junior engineers.

As a Senior Software Engineer, you'll design scalable applications, mentor engineers, and modernize web applications while collaborating with UX and product teams.

The Full Stack Engineer will develop scalable products to enhance healthcare navigation, collaborate with product managers, and contribute to technical decision-making.

The Senior Full Stack Engineer will develop geospatial applications, implement algorithms, and mentor peers while collaborating in a cross-functional team.

As a Senior Full Stack Developer, you will work in an Agile Scrum team to develop and enhance the Applied Epic software leveraging C#, .NET, React, and SQL Server, while also mentoring junior developers.

As an Intermediate Fullstack Engineer at GitLab, you'll design and implement A/B tests and features, focusing heavily on backend development with Ruby on Rails while analyzing user engagement and optimizing onboarding flows.

The Full Stack C# Software Engineer is responsible for developing user-facing features for spacecraft operation software using C#, React, and TypeScript. The role involves translating designs into code, building reusable components, developing APIs, engineering algorithms, writing unit tests, and collaborating with cross-functional teams for feature design.

Seeking a Senior Full-Stack Engineer with 10+ years experience to optimize AI PaaS platforms, specializing in frontend and cloud systems, database design, and scalable infrastructures.

The Senior Full Stack Engineer will design and implement scalable product features, collaborate with teams, and improve client care access through technology.

Lead technical initiatives, develop cloud-native solutions, engage in design discussions, and enhance engineering excellence for Capital One's software offerings.

The Full Stack Engineer will develop end-to-end solutions, focusing on user experiences with HTML5, CSS3, JavaScript, and PHP. Responsibilities include UI development, API development, coding best practices, and collaboration in an Agile environment.

As a Senior Full Stack Engineer at Kustomer, you will design, develop, and deploy scalable web applications using Node.js and React, collaborate with cross-functional teams, manage real-time systems, and optimize application performance. You'll mentor junior developers and implement best practices.

The Full Stack Engineer will design and develop scalable NoSQL and messaging systems, write high-quality code with comprehensive documentation, troubleshoot operational issues, and collaborate in agile team settings. This role involves working on large-scale distributed systems and managing globally distributed production systems.

As a Full Stack Engineer, you will develop and maintain web applications for fraud analysis, collaborating with cross-functional teams to enhance products and drive agile delivery.

The Senior Software Engineer at Hiya will develop services for mobile applications, focusing on feature enhancement for voice calls. Responsibilities include collaborating with teams, improving processes, and experimenting with voice-related technology. Experience in Node.js and cloud services is required, along with knowledge of front-end frameworks and startup environments.

Designs and maintains enterprise application systems, aligns application design with strategic direction, creates architectural designs, and supports business systems applications.

As a Senior Full-Stack Software Engineer, you'll build and maintain Synthflow's platform using JavaScript and Python, and collaborate with teams to deliver high-quality solutions.