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CoStar Group
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October 20, 2026
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Associate Security Engineer - Arlington, VA

Arlington, VA
Full-time
Hybrid
$100K/yr - $105K/yr
New Grad
CoStar Group is hiring an Associate Security Engineer to support the implementation and maintenance of cybersecurity controls across its enterprise. The role helps deploy, support, and improve security technologies while developing hands-on experience in areas including vulnerability management, endpoint security, threat detection and response, and software security.
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Responsibilities

  • In this role, you'll support the implementation and maintenance of cybersecurity controls across CoStar Group including endpoints, identities, cloud platforms, applications, and business processes
  • You will learn and reinforce security concepts to technical and non-technical audiences while gaining hands-on experience in areas such as vulnerability management, endpoint security, security tool integration, threat detection and response, software security, and emerging areas such as AI security and automation
  • Associate Security Engineers assist with deploying, supporting, and improving security technologies under the guidance of experienced team members

Qualification

Required

  • Currently pursuing a bachelor's degree from an accredited, not-for-profit university or college in Cybersecurity, Computer Science, Information Technology, Software Engineering, or a comparable major
  • Must have an expected graduation date of December 2026 - June 2027
  • Minimum 3.0 cumulative GPA
  • Demonstrated interest in cybersecurity through personal endeavors outside of undergraduate degree program
  • At least 2 months of previous relevant internship or co-op experience
  • Exposure to scripting or programming languages such as PowerShell, Bash, Python, or similar languages
  • Ability to troubleshoot technical issues, identify potential causes, and document findings or recommended next steps
  • Ability to communicate technical information clearly in written and verbal formats
  • Ability to follow established processes, document work accurately, and collaborate with technical teams
  • 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

Preferred

  • Sec+
  • CySA+
  • Security Operation Center experience
  • Ability to describe basic cybersecurity concepts such as vulnerability management, endpoint security, network security, authentication, access controls, or incident response
  • Exposure to AI, machine learning, automation, or AI security concepts through internship, co-op, academic, or personal projects

Benefits

  • Performance-based incentives
  • Internal training
  • Tuition reimbursement
  • 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
  • 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
  • Monday to Thursday in office and the option to work from home on Friday
CoStar Group (NASDAQ: CSGP) is the provider of commercial real estate information, analytics and marketing services.
Glassdoor
2.6
Founded in 1987
Arlington, Virginia, USA
5001-10000 employees
http://www.costargroup.com/
CoStar Group (NASDAQ: CSGP) is the provider of commercial real estate information, analytics and marketing services.
Glassdoor
2.6
Founded in 1987
Arlington, Virginia, USA
5001-10000 employees
http://www.costargroup.com/