Senior Security Engineer - AI, SaaS & Network Defense

CoStar Group; Arlington (VA); Hybrid; USD 100,000 - 130,000; Full time

Benefits offered by this job

Comprehensive healthcare coverage

401(K) retirement plan with matching contributions

Paid time off

On-site fitness center

Tuition reimbursement

Job summary

CoStar Group is seeking a Senior Security Engineer in Arlington, VA to enhance its enterprise security posture. The role encompasses traditional network security as well as SaaS and AI security governance, requiring strong technical capabilities and communication skills.

The ideal candidate will audit network designs, enhance security measures, and implement robust SaaS security policies. A Bachelor's degree and 5+ years of experience in Information Security are required, along with certifications such as CISSP.

The position offers generous compensation, performance-based incentives, and professional growth opportunities.

Qualifications

• 5+ years of experience in Information Security or Security Engineering.
• One or more industry-recognized certifications (e.g., CISSP, SANS/GIAC).
• Strong experience securing AWS networking (NACLs, Security Groups, etc.).
• Hands-on experience with NGFWs, WAFs, and enterprise network segmentation.

Responsibilities

• Provide engineering expertise to ensure secure enterprise network changes.
• Audit existing network designs and recommend security improvements.
• Evaluate firewall change requests across environments.
• Design policies for Next Generation Firewalls and wireless infrastructure.

Skills

Information Security

Security Engineering

Network Security

AWS Networking

SaaS Security

Python

PowerShell

Education

Bachelor's Degree from an accredited university

Tools

AWS Security Tools

Next Generation Firewalls (NGFW)

Web Application Firewalls (WAF)

Job description

CoStar Group is seeking a Senior Security Engineer in Arlington, VA to enhance its enterprise security posture. The role encompasses traditional network security as well as SaaS and AI security governance, requiring strong technical capabilities and communication skills.

The ideal candidate will audit network designs, enhance security measures, and implement robust SaaS security policies. A Bachelor's degree and 5+ years of experience in Information Security are required, along with certifications such as CISSP.

The position offers generous compensation, performance-based incentives, and professional growth opportunities.