CoStar Group, a leading provider of real estate information and analytics, is seeking a Senior .NET Software Engineer to join their Platform team in Nashville, TN. This role offers an exciting opportunity to work on backend services powering major brands like Apartments.com, Homes.com, and CoStar. The position involves building distributed systems that serve thousands of users, primarily using AWS components. The ideal candidate will have strong expertise in C# and .NET development, with experience in database design and performance tuning. The role offers a hybrid work arrangement with in-office work Monday through Thursday and remote work on Friday. CoStar Group provides comprehensive benefits including healthcare coverage, 401(k) matching, stock purchase plans, and various wellness amenities. The company's mission is to digitize the world's real estate, making it an exciting time to join their growing team of technology professionals.