Lead Software Engineer

CoStar Group

📍 Arlington, Virginia, United States

Full time Computer Occupations Posted March 01, 2026

Job Description

Responsibilities

  • Design and develop high performance web applications used by thousands of users globally

  • Drive continuous improvement by focusing on engineering excellence 

  • Influence CI/CD pipeline improvements

  • Collaborate closely with other Software Engineers across the organization.

  • Mentor junior developers, review code and architecture, and promote software development best practices

  • Continually evaluate emerging technologies to identify opportunities, trends and best practices that can be used to strengthen CoStar’s technology platform and development practices 

  • Develop and maintain an in-depth working knowledge of the CRE Industry and CoStar’s business model / technology

  • Basic Qualifications

  • Bachelor’s Degree required from an accredited, not for profit university or college.

  • A track record of commitment to prior employers