.NET Developer (Mid-Level) Location: Onsite 5x days / week - Washington, DC Clearance Required: Active Secret Improvix Technologies is seeking a motivated .NET Developer to support a fast-paced federal program delivering high-visibility mission outcomes. This role is ideal for a mid-level developer who thrives in collaborative environments and contributes across development and operational support activities. You will work alongside senior developers and technical leads to maintain and enhance existing applications built on Microsoft technologies. While SharePoint remains part of the environment, the role is primarily focused on .NET development and application support. What You'll Do • Develop, enhance, and maintain .NET-based applications supporting a federal mission • Support and maintain legacy SharePoint-backed systems as part of ongoing modernization efforts • Perform operational support (O&M), bug fixes, and minor enhancements • Assist with deploying code changes and supporting frequent releases • Collaborate closely with technical leads and team members to meet delivery timelines • Troubleshoot, debug, and test applications to ensure stability and performance • Work onsite with the team to support rapid collaboration and delivery What You Bring • Bachelor's degree in Computer Science, Information Technology, or related field (or equivalent experience) • 3-6 years of experience in .NET development • Strong working knowledge of C#, ASP.NET MVC, and web application fundamentals • Familiarity with SharePoint 2013 or newer in a supporting or legacy capacity • Experience with MS SQL, Entity Framework, and REST APIs • Experience using Git or TFS for source control • Exposure to front-end frameworks such as React or Angular (preferred, not required) • Basic understanding of Active Directory and application security concepts • Ability to work onsite in a federal environment (occasional Saturday hours may be required for deployment activities) Our benefits include: • Competitive compensation and performance-based incentives • 401(k) with company match • Three weeks of paid annual leave that increases with tenure • Comprehensive medical, dental, and vision insurance • Life insurance and disability coverage • Transit and commuting benefits • Professional development and paid training opportunities At Improvix, you'll join a collaborative, mission-focused environment where your expertise drives meaningful impact.