Senior Software Engineer - Quality Engineering

Senior Software Engineer - Quality Engineering Job Description

CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index, CoStar Group is on a mission to digitize the world’s real estate, empowering all people to discover properties, insights and connections that improve their businesses and lives.

We have been living and breathing the world of real estate information and online marketplaces for over 35 years, giving us the perspective to create truly unique and valuable offerings to our customers. We’ve continually refined, transformed and perfected our approach to our business, creating a language that has become standard in our industry, for our customers, and even our competitors.

We continue that effort today and are always working to improve and drive innovation. This is how we deliver for our customers, our employees, and investors. By equipping the brightest minds with the best resources available, we provide an invaluable edge in real estate.

We’re looking for a Senior Software Engineer who can level up how our team uses AI to build, scale, and maintain modern software systems, with a strong emphasis on automation frameworks and quality engineering. This person will bring strong hands‑on experience with AI‑enabled tools (e.g., Copilot, Claude, or similar) and apply them across software development, test design, failure analysis, and automation strategy.

You should be comfortable operating independently, creating repeatable processes, and driving adoption across the team, helping others understand not just the tools, but how to use them effectively to improve quality, speed, and coverage. This is a high‑impact role for someone who combines deep QA fundamentals with a forward‑thinking, AI‑first mindset.

This position is in Richmond, VA and is onsite Monday through Thursday and work from home Friday.

• Ensures that products conform to business requirements/company policies, software quality standards, and established procedures
• Confirms that testable systems are specified, designed and implemented
• Ensures testing practices and documentation support SOX (Sarbanes‑Oxley) compliance requirements
• Designs, documents, and implements testing procedures and techniques aligned with departmental SQA Methodology, evaluating software and business risk, accuracy, completeness, internal integrity, testability, and overall quality across business systems and SDLC processes
• Creates and maintains SQA deliverables including test plans, test cases, test data, project test progress and release reports, application turnover documents and test schedules
• Recommends and assists in corrective actions taken at all stages of product life cycle
• Submits and tracks issues throughout the SDLC, including production (maintenance) and release issues, in their respective systems
• Develops functional automated tests and curates automated regression test suites
• Supports release management by validating release readiness and coordinating go/no‑go testing decisions
• Leverages agentic engineering and AI‑assisted tools to accelerate test design, automation, and defect triage across the SDLC

• Bachelor’s degree in information systems, computer science, or related field, from an accredited, in‑person, not for profit university or college
• A track record of commitment to prior employers
• Experience with agentic engineering and AI‑assisted development tools (e.g., Claude Code, Git Hub Copilot) to accelerate test automation and quality workflows
• Demonstrated ability to apply AI copilots or agentic workflows to test case generation, code review, and root‑cause analysis
• S…