Top .NET Developer Jobs in Denver & Boulder, CO

Develop, maintain, and evolve sports trading desktop applications and backend services using .NET and SQL Server. Deliver scalable, low-latency solutions, support production systems, mentor team members, and contribute to architecture and estimates.

Develop, migrate, and maintain .NET applications using Agile/DevOps practices; implement Okta authentication replacing ADFS, perform testing, create migration/implementation/testing documentation, and collaborate with stakeholders to deliver projects on time and budget.

Design and implement cross-platform features for KeeperChat (desktop, mobile, web). Build and maintain .NET/C# MAUI clients and React web UI, optimize performance and reliability, participate in code reviews, collaborate with product/design/backend teams, and mentor junior engineers while upholding security and code quality.

As a Senior Software Engineer, you will develop microservices, optimize data pipelines, and collaborate on engineering solutions aligned with business needs. You will mentor team members while maintaining robust security protocols and promoting best coding practices.

Lead design and implementation of scalable .NET Core + Angular applications. Communicate with stakeholders, estimate work, drive agile delivery, ensure code quality, mentor engineers, and collaborate across product, QA, and design to deliver client-facing solutions.

Senior Software Engineer II designs, develops, tests, and deploys scalable .NET-based features and ERP integrations. Responsibilities include technical design, code reviews, CI/CD pipeline management, troubleshooting, mentoring peers, and ensuring reliability, performance, and security across cloud-native Azure services.

Seeking a Senior Full Stack .NET Developer to work on a social good project, with strong skills in C#, AngularJS, design, and UX. Requires 5+ years of experience.

The role involves developing and maintaining applications using .NET Core and Microservices architecture, with a focus on both front-end and back-end technologies.

As a Principal .NET Software Engineer at Versapay, you will modernize payments infrastructure, improve scalability, design distributed services, and take ownership of payment workflows while collaborating with various teams to enhance customer experience.

Seeking a Senior Software Developer for developing high-performance distributed systems for media workflows, including video transcoding and content delivery.

The Senior .NET Software Engineer will drive development of .NET software products, focusing on back-end engineering, code reviews, and collaborating with cross-functional teams.

The Staff Engineer will leverage 5+ years of experience in C#, JavaScript, and frameworks to lead and innovate solutions in a collaborative environment.

As a Senior Software Engineer, you'll develop and maintain C# applications, lead projects, mentor juniors, and contribute to community initiatives, ensuring high-quality delivery and design.

Develop and maintain web applications using .NET technologies. Collaborate on design patterns, web services, and front-end development with a focus on security and performance.

Design and develop scalable services/APIs using C#/.NET/.NET Core, collaborate during SDLC, mentor junior engineers, and ensure code quality.

The Integration Developer supports and maintains Rhapsody and .NET applications, automates workflows, and modernizes legacy systems for public health data exchange.

The role involves full-stack software development, adhering to Agile practices, and collaborating across teams. Responsibilities include coding, testing, and maintaining software systems while mentoring team members.

Develop and maintain full stack components and features for software products. Collaborate with team members to ensure solutions meet business needs.

The Senior Software Engineer will design, build, and maintain scalable communication systems using a modern .NET stack, mentor junior engineers, and collaborate with teams.

The Senior Backend Engineer will develop backend solutions using .NET/C# and modern architecture, focusing on cloud services and databases, while managing client projects.

As a Senior Software Developer, you'll design, build, deploy, and support web applications using the .NET stack and Azure, while collaborating with a team.

Seeking a Senior Software Developer to design, build, deploy, and support web applications using the .NET stack and other technologies in a collaborative team environment.

Develop full stack enterprise-level applications, create responsive websites, and manage databases (MS SQL & MongoDB) as a .Net Developer.

As a Senior Software Engineer, you'll design and deliver high-quality solutions, collaborate across teams, mentor junior engineers, and implement scalable software systems.