

Provides commercial real estate data, analytics, and marketing services.
17 hours ago
Junior (1-3 years), Expert & Leadership (13+ years), Experienced (8-12 years)
Full Time
Arlington, Virginia, United States | Richmond, Virginia, United States
Office Full-Time
Company Size
4,700 Employees
Service Specialisms
Sector Specialisms
The Lead Web App Pen Tester will secure the software and applications that power the worldwide real estate market. Working with over 1,000 software, QA, and operations engineers, the role involves threat modeling, white‑box analysis, and grey‑box penetration testing, and will partner with development, DevOps, and security teams to embed security throughout the SDLC. The position is based in Arlington, VA or Richmond, VA, with a hybrid schedule (on‑site Monday‑Thursday, remote Friday).
CoStar fosters a collaborative and innovative culture, offering generous compensation, performance incentives, and extensive professional development resources such as internal training and tuition reimbursement. The company is committed to diversity, equity, and inclusion, providing numerous employee resource groups and a supportive work environment.