Top .NET Developer Jobs in Denver & Boulder, CO

Develop and maintain web applications using ASP.NET, C#, AngularJS and SQL Server. Produce design deliverables, perform reviews, unit test planning, independent testing and release sign-off. Work collaboratively with clients and global teams in the Audit/Advisory domain.

Design, develop, and optimize .NET web applications and services using C#, ASP.NET, WCF/WF, Web API and REST/SOAP. Implement client-side features (Angular, jQuery, MVC), ensure security, perform DB tuning on SQL Server, write unit/integration tests, and resolve threading/memory/performance issues for scalable distributed systems.

Design, develop, test, and deploy .NET solutions (APIs and web apps). Build and consume RESTful services, work with SQL and NoSQL databases, use cloud (Azure/AWS) and Docker, apply unit/integration/performance testing, participate in code reviews, define features via spikes, and architect scalable, high-performance systems. Support occasional after-hours and on-call rotation.

Maintain and modernize a stable .NET/SQL Server platform while leading migration from monoliths to cloud-native microservices. Design APIs and event-driven patterns, containerize deployments, optimize backend .NET apps and SQL performance, and build responsive frontends integrated with microservices. Collaborate across cross-functional teams to ensure scalable, highly available systems.

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, build, and maintain scalable web applications for payroll and accounting. Collaborate with engineers and product partners, write tested code, participate in code reviews, contribute to architecture, improve CI/CD and monitoring, support production (including on-call), and communicate progress while continuously learning.

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

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

Lead C#/.NET developer responsible for implementing front-end and back-end features using AngularJS, HTML5, jQuery, JavaScript and Web API. Work in Agile, customer-facing role; lead an offshore team of 4-5 and operate in an onshore/offshore delivery model.

Hands-on Full Stack .NET lead responsible for backend C#/.NET services and APIs, Angular front-end development, Web API, jQuery and WCF. Must currently be a lead managing a team of more than five members and provide strong hands-on technical leadership.