Software Engineer II, Data Management
Core
Build big, distributed, API-driven systems and data platforms supporting CoStar Group's real estate brands (CoStar Suite, LoopNet, Homes.com) for tens of thousands of users.
Role type
Senior IC software engineer (data management & distributed systems)
Builds
Large-scale distributed services and web applications for commercial and residential real estate marketplaces
Domain
Real estate information, analytics, and online marketplaces
Deliverable
production ML models | product features | infrastructure
Required skills
React JS, JavaScript, C#, .NET Framework, Web API 2.0, MS SQL Server, T-SQL, PostgreSQL, distributed system architecture, data modeling, AI tooling (Claude Code, GitHub Copilot, Cursor, Gemini, Grok)
Preferred skills
Azure or AWS cloud platforms, advanced SQL querying, RESTful web services, production ML technologies (Azure Machine Learning, AWS SageMaker), LLM technologies (Azure AI Foundry, AWS Bedrock)
Technologies
React JS, C#, .NET Framework, AWS (DynamoDB, S3, Lambda), SQL Server, Azure, GitHub Copilot, Cursor
Responsibilities
Build robust, efficient, and maintainable code; drive software design and development standards; conduct code reviews; evaluate emerging technologies to strengthen the technology platform
Seniority
Mid-level IC (4+ years experience)