CoStar Group
CoStar Group is seeking a Senior Software Engineer to design, build, and maintain scalable, cloud-native applications using C# and .NET on AWS. The role involves leveraging AI tools like Claude to accelerate development, improve code quality, and mentor engineering teams. This position requires strong expertise in backend services, cloud infrastructure, and modern software design principles.
Headquarters
Arlington, Virginia, United States
Company Size
5001-10000 employees
Founded
1987
CoStar Group is a leading provider of commercial real estate information, analytics, and marketing platforms. The company builds and maintains comprehensive, verified databases of properties, listings, transactions, and market trends, and offers software tools that help brokers, owners, investors, lenders, and occupiers find, analyze, and market space. CoStar’s portfolio includes well-known marketplaces and brands (such as CoStar, LoopNet, and Apartments.com) and is valued for its mapping, data-driven research, and industry insights across major markets.
Headquarters
San Francisco, CA
Company Size
201-500 employees
Founded
2018
Industry
Technology
Glassdoor Rating
4.2 / 5
Sarah Johnson
Chief Executive Officer
Michael Chen
Chief Technology Officer
Emily Williams
VP of Engineering
David Rodriguez
VP of Product
Jessica Thompson
Chief Financial Officer
Andrew Park
VP of Sales
View leadership team, funding history,
and employee contacts for CoStar Group.