Senior Software Engineer (C#/.NET/AWS)

CoStar Group, a leading provider of real estate information and analytics, is seeking a Senior Software Engineer to join their Product Data Services team. This role focuses on building backend services that power CoStar's suite of products, including Apartments.com, Homes.com, and CoStar. The position offers an opportunity to work on large-scale systems that impact thousands of users, primarily using C#, .NET Framework, and AWS technologies.

The role is based in La Jolla, San Diego, with a hybrid work arrangement (4 days onsite, 1 day remote). The successful candidate will be responsible for developing distributed, API-driven systems, writing robust and maintainable code, and leading software design initiatives. They seek someone with strong experience in .NET development, database design, and a solid understanding of software architecture principles.

CoStar Group, being part of both S&P 500 and NASDAQ 100, offers a comprehensive benefits package including healthcare coverage, 401(k) matching, stock purchase plans, and various wellness perks. The company maintains a strong focus on innovation and professional growth, providing opportunities for mentorship and continuous learning.

The ideal candidate will have 5+ years of .NET development experience, strong database skills, and a proven track record of building successful, scalable products. This is an excellent opportunity for a senior engineer looking to make a significant impact in the real estate technology sector while working with modern technologies and solving complex challenges at scale.