Senior Software Engineer (.NET)

CoStar Group, a leading provider of real estate information and analytics, is seeking a Senior Software Engineer to join their Platform team. This role focuses on building backend services that power major brands like Apartments.com, Homes.com, and CoStar. Working primarily with .NET on AWS, you'll develop solutions that impact thousands of users. The position offers a hybrid work arrangement with 4 days onsite in Arlington, VA.

The ideal candidate will have 5+ years of .NET development experience and strong expertise in database design and T-SQL programming. You'll be responsible for building distributed, API-driven systems that serve tens of thousands of users, using technologies like C#, .NET Framework, JSON, SQL Server, and AWS. The role requires strong understanding of software design patterns, performance testing, and HTTP concepts.

CoStar Group offers a comprehensive benefits package including healthcare coverage, 401(k) matching, stock purchase plans, and professional development opportunities. The company's culture emphasizes collaboration and innovation, working alongside talented professionals to empower customers and drive success in the real estate information industry.

This is an excellent opportunity for a senior engineer looking to make a significant impact in a publicly traded company (NASDAQ: CSGP) that's part of both the S&P 500 and NASDAQ 100 indexes. The role combines technical challenges of scale with the opportunity to work on products that are transforming the real estate industry.