Senior Software Developer Jobs in Chesterfield, VA

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 have 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.

Our team is responsible for building software in support of CoStar Group’s sales teams. We think big, building innovative CRM features that empower our sales teams’ success. We are a collaborative group with a mix of native mobile, data, API / platform, and front-end skills, and we are working to drive our company's future with our proprietary CRM system. We are actively hiring a Senior Software Engineer to join our Sales Development team and contribute to our AI initiatives within our CRM platform. This position is located in Richmond, VA and offers a schedule of Monday to Thursday in office and the option to work from home on Friday.

• Building customer-facing web applications using React and TypeScript.
• Build microservices and RESTful APIs with C# and .NET Core.
• Drive and lead software design, developing standards and performing code reviews, resulting in robust codebases that are efficient and maintainable.
• Continually evaluate emerging technologies to identify opportunities, trends, and best practices that can be leveraged to strengthen CoStar’s technology platform and develop best practices.
• Develop comprehensive application testing procedures to ensure high-quality applications for tens of thousands of users.

• Bachelor’s Degree required from an accredited, not-for-profit, in-person college or university.
• 6+ years of software development experience with OOP languages.
• Demonstrated experience in architecting, designing and building large scale distributed, service-oriented systems and web applications in an agile environment.
• Experience building RESTful APIs using C#.
• Proficient understanding of code versioning tools such as Git.
• Understanding AI technologies and has hands‑on experience in AI adoption and development.
• Familiarity with CI/CD deployment processes.
• A track record of commitment to prior employers.

• Experience with SQL.
• Familiarity with AWS services and tools, including but not limited to Bedrock.
• Experience with Elasticsearch or OpenSearch.
• Strong communication skills (to both business and technical partners).
• Data modeling experience from conceptual, logical and physical designs.

When you join CoStar Group, you’ll experience a collaborative and innovative culture working alongside the best and brightest to empower our people and customers to succeed.

• Comprehensive healthcare coverage: Medical / Vision / Dental / Prescription Drug.
• Life, legal, and supplementary insurance.
• 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.
• Paid time off.
• Tuition reimbursement.
• On‑site fitness center and/or reimbursed fitness center membership costs (location dependent).
• Access to CoStar Group’s Employee Resource Groups.
• Complimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks.

Base Compensation: $130,000 - $170,000 annually

We welcome all qualified candidates who are currently eligible to work full‑time in the United States to apply. However, please note that CoStar Group is not able to provide visa sponsorship for this position.

CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug‑free workplace and perform pre‑employment substance abuse testing.