Senior Offensive Security Engineer

Responsibilities

• Lead purple team activities in collaboration with our threat management and defensive blue teams including adversary emulation and the validation of detective, defensive, and vulnerability controls
• Plan and oversee external red team engagements with external partners
• Oversee and mentor other offensive security team members. Share knowledge with all members of the security team
• Oversee all internal penetration testing efforts as both a player and a coach to other penetration testing engineers to cover penetration testing of all critical infrastructure (ie CI / CD systems, Active Directory)

Basic Qualifications

• Bachelor’s Degree required from an accredited, not for profit university or college (preferably in a relevant field - Computer Science / Cyber Security)
• A track record of commitment to prior employers
• 3 years of experience performing offensive security activities such as red teaming, penetration testing, and vulnerability research
• 6 years of total experience in a technical role such as security, networking, systems, or software development
• Security certification such as OSEP, OSCP, CRTO, GXPN or similar certification
• Scripting / programming skills (Bash, Python, PowerShell)
• Experience planning and executing Red Team and Purple Team Scenarios

Preferred Qualifications and Skills

• Using security tools like NMAP, Burp Suite, Kali Linux, Bloodhound, and similar tools
• Experience with C2 Frameworks like Cobalt Strike, Sliver, and Mythic
• Windows Active Directory exploitation tools and techniques
• Knowledge of payload and exploit development (C / C# / C++)
• Understanding of EDR systems and how to evade them

What’s in it for You

When you join CoStar Group, you’ll experience a collaborative and innovative culture working alongside the best and brightest to empower our people and customers to succeed.

We offer you generous compensation and performance-based incentives. CoStar Group also invests in your professional and academic growth with internal training, tuition reimbursement, and an inter-office exchange program.

Our benefits package includes (but is not limited to) :

• 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
• Tuition reimbursement
• On-site fitness center and / or reimbursed fitness center membership costs (location dependent), with yoga studio, Pelotons, personal training, group exercise classes
• Access to CoStar Group’s Diversity, Equity, & Inclusion Employee Resource Groups
• Complimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks
30+ days ago