Costar
Software Engineer II, Data Management
US-VA Richmond - CoStar Tower · Mid · Full-time
Work authorization required$108k-$140kDetected 5 days ago
JavaScriptC#React.NETGitSQLPostgreSQLAWSAzureCloud PlatformsRESTMachine LearningLLMsCommunication
About the role
- 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, insights and connections that improve their businesses and lives.
- 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.
Responsibilities
- Build big, distributed, API-driven systems for tens of thousands of users
- Drive and lead software design, development standards, code reviews.
- Continually evaluate emerging technologies to identify opportunities, trends, and best practices that can be leveraged to strength CoStar's technology platform and develop practices.
- CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug-free workplace and perform pre-employment substance abuse testing
Requirements
- Bachelor's Degree from an accredited, not for profit, in person university or college
- 4+ years of experience in React JS, JavaScript
- 4+ years of experience in C#,.NET Framework & Web API 2.0 Development
- 3+ years of experience in MS SQL Server OR Database Design in T-SQL or PostgreSQL programming/performance tuning
- Understanding of AI technologies and hands-on experience leveraging AI tooling in development (Claude Code, GitHub Copilot, Cursor, Gemini, Grok).
- Track record of commitment to prior employers
- Experience in architecting, designing and building large-scale distributed, services-oriented systems and web applications in an agile environment
- Data modeling experience
- Preferred Qualifications
- Strong communication skills (to both business and technical partners)
- Data modeling experience from conceptual, logical and physical designs
Nice to have
- Knowledge of cloud platforms (Azure or AWS)
- Advanced SQL Querying
- Experience with RESTful web services
- Experience implementing LLM technologies into production systems (Azure AI Foundry, AWS Bedrock, etc.)
- What's in it for you?
- Life, legal, and supplementary insurance
- Access to CoStar Group's Employee Resource Groups
- Complimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks
Compensation
- $108,000 - $140,000 annually
Benefits
- Virtual and in person mental health counseling services for individuals and family
- Commuter and parking benefits
- 401(K) retirement plan with matching contributions
- Employee stock purchase plan
- Tuition reimbursement
- On-site fitness center and/or reimbursed fitness center membership costs (location dependent)
Company info
- 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.
Visa & Work Authorization
- However, please note that CoStar Group is not able to provide visa sponsorship for this position.
This listing is sourced directly from Costar's careers page and normalized into a canonical job model.