Senior Offensive Security Engineer

2 weeks ago


Washington, Washington, D.C., United States CoStar Group Full time
Job Title: Cyber Security Lead at CoStar Group

Are you passionate about offensive security activities and leading a team to ensure the security of critical infrastructure? If so, we have the perfect opportunity for you

Responsibilities:
  • Lead purple team activities in collaboration with the threat management and defensive blue teams
  • Plan and oversee external red team engagements with partners
  • Mentor offensive security team members and share knowledge with the security team
  • Oversee internal penetration testing efforts and coach other engineers
Basic Qualifications:
  • Bachelor's Degree in Computer Science/Cyber Security
  • Track record of commitment to prior employers
  • 3 years of experience in offensive security activities
  • 6 years of total technical experience
  • Security certification such as OSEP, OSCP, CRTO, GXPN
  • Scripting/programming skills in Bash, Python, PowerShell
  • Experience with Red Team and Purple Team Scenarios
Preferred Qualifications and Skills:
  • Proficiency in security tools like NMAP, Burp Suite, Kali Linux, Bloodhound
  • Experience with C2 Frameworks like Cobalt Strike, Sliver, Mythic
  • Knowledge of Windows Active Directory exploitation tools
  • Understanding of payload and exploit development
  • Familiarity with EDR systems and evasion techniques
What's in it for You:

Joining CoStar Group means becoming part of a collaborative, innovative culture that values success. We offer competitive compensation, performance-based incentives, professional development opportunities, and a benefits package including healthcare coverage, insurance, mental health counseling, retirement plan, fitness perks, and more.



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