Senior Software Engineer

Senior Software Engineer – CoStar Group – Richmond, VA

CoStar Group is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. We digitize the real estate industry and empower people to discover properties, insights, and connections that improve their businesses and lives.

We are seeking an accomplished Senior Full-Stack Software Engineer who excels at designing and architecting modern web applications. This engineer will support our Web Enterprise team in building the software tools that power our proprietary CRM platform and support our sales and research teams across , , , , and more.

Location:

Richmond, VA – Monday‑Thursday in‑office, Friday remote.

• Build large‑scale, distributed, API‑driven systems for critical internal applications
• Identify and resolve issues related to database performance and integrity
• Design, document, and implement efficient and scalable database structures
• Drive and lead software design, development standards, code reviews, and production releases
• Collaborate closely with other Software Engineers across the organization
• Continuously evaluate emerging technologies to identify opportunities, trends, and best practices that can strengthen CoStar’s technology platform and development practices
• Take an active role in mentoring other developers

• Bachelor’s Degree from an accredited university or college
• 5+ years of production development experience with .NET Core and the ability to integrate front‑end components into a scalable, secure, and maintainable backend architecture
• 3+ years of database design, T‑SQL programming, and performance tuning experience
• Production development experience using modern front‑end frameworks (React, Vue, Angular)
• Experience architecting, designing, and building event‑driven applications in an agile environment
• Excellent software development and engineering skills on large‑scale, mission‑critical applications
• Proficiency in unit and performance testing
• A track record of commitment to previous employers

• Experience with Document Data Systems (Dynamo, Open Search) is a plus
• Comfortable working across the stack with Node.js on the server‑side
• Experience with AWS S3, Lambda, SQS, Kafka, Redis is a plus
• Experience with Docker and container orchestration is a plus
• Experience working on a SOX compliant team is a plus

• 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), with yoga studio, Peloton, personal training, group exercise classes
• Access to CoStar Group’s Diversity, Equity, & Inclusion Employee Resource Groups
• Complimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks

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.