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Senior Software Engineer

CoStar Group

Salary not specified
Oct 17, 2025
Richmond, VA, US
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CoStar Group is looking to hire a Senior Full-Stack Software Engineer to support their Web Enterprise team in building software tools for their proprietary CRM platform and supporting sales and research teams across multiple brands.

Requirements

  • 5+ years of production development experience with .NET Core with 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 in 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
  • Experience with Document Data Systems (Dynamo, OpenSearch) a plus.
  • Comfortable working across the stack with Node.js on the server-side
  • Experience with AWS S3, Lambda, SQS, Kafka, Redis a plus.
  • Experience with Docker and container orchestration a plus.

Responsibilities

  • 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
  • Continually evaluate emerging technologies to identify opportunities, trends, and best practices that can be leveraged to strengthen CoStar’s technology platform and development practices.
  • Collaborate closely with other Software Engineers across the organization.

Other

  • Bachelor’s Degree required from an accredited, not for profit university or college
  • Willingness to take an active role in mentoring other developers.
  • A track record of commitment to previous employers
  • We welcome all qualified candidates who are currently eligible to work full-time in the United States to apply.
  • CoStar Group is not able to provide visa sponsorship for this position.