About this role
LoopNet - Senior Software Engineer at CoStar Group. Location: Irvine, California, United States. Role: building systems, mentoring engineers, designing architecture Requirements: Bachelor's degree, 7+ years production development with C#/.NET, AWS experience, AI coding tool familiarity (Claude Code/GitHub Copilot), strong testing, API/backend design, and mentoring experience. Category: Software Development Seniority: Senior Level Tools: C#, .NET, .NET Core, AWS, Claude Code, GitHub Copilot, Vue.js, React, TypeScript, MS SQL, MySQL, S3, SQS, DynamoDB, ElastiCache, Apache Kafka, Datadog, Docker, Kubernetes, Git, BigQuery, Databricks, Snowflake, Python Commitment: Full Time Workplace: Hybrid Languages: English