Senior Software Engineer - AI-Driven Cloud (C#/AWS)

CoStar Group’s LoopNet brand in Irvine, CA seeks a Senior Software Engineer with deep expertise in C#/.NET, AWS, and AI coding tools to build scalable backend systems across LoopNet.com and other brands. You will contribute to architecture decisions and mentor engineers while delivering high-quality software. This role is hybrid with four days onsite and one day remote. A Bachelor's degree and 6+ years of experience required; strong API design, testing, and backend knowledge.#J-18808-Ljbffr