About this role
Senior Software Engineer (C#/.NET) at Costar. Location: Arlington, Virginia, United States. Role: building systems, designing solutions, integrating AI Requirements: 5+ years .NET (C#) development experience, AWS/cloud and distributed system experience, REST/ASP.NET MVC, data modeling, familiarity with LLMs and observability; Bachelor’s degree required. Category: Software Development Seniority: Senior Level Tools: C#, .NET Framework, SQL Server, AWS, Web API, ASP.NET MVC, Lambda, DynamoDB, SQS, large language models (LLMs) Commitment: Full Time Workplace: Hybrid Languages: English