Senior Offensive Security Engineer

Company logo
Costar Group
Provides commercial real estate data, analytics, and marketing services.
Lead offensive security, red/purple team, penetration testing and mentorship.
9 days ago ago
Intermediate (4-7 years), Expert & Leadership (13+ years), Experienced (8-12 years)
Full Time
Arlington, VA
Office Full-Time
Company Size
4,700 Employees
Service Specialisms
No specialisms available
Sector Specialisms
Commercial Real Estate
Residential
Apartments
Hospitality
Industrial
Retail
Office
Multifamily
Role
What you would be doing
security tools
pen testing
red team
purple team
mentoring
adversary emulation
  • Using security tools like NMAP, Burp Suite, Kali Linux, Bloodhound, and similar tools
  • 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)
  • Plan and oversee external red team engagements with external partners
  • 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
  • Oversee and mentor other offensive security team members. Share knowledge with all members of the security team
What you bring
red team
c2 frameworks
oscp
active directory
python
6+ years
  • Experience planning and executing Red Team and Purple Team Scenarios
  • A track record of commitment to prior employers
  • Knowledge of payload and exploit development (C/C#/C++)
  • Experience with C2 Frameworks like Cobalt Strike, Sliver, and Mythic
  • Understanding of EDR systems and how to evade them
  • Security certification such as OSEP, OSCP, CRTO, GXPN or similar certification
  • Windows Active Directory exploitation tools and techniques
  • Bachelor’s Degree required from an accredited, not for profit university or college (preferably in a relevant field - Computer Science/Cyber Security)
  • 6 years of total experience in a technical role such as security, networking, systems, or software development
  • 3 years of experience performing offensive security activities such as red teaming, penetration testing, and vulnerability research
  • Scripting/programming skills (Bash, Python, PowerShell)
Benefits
  • 401(K) retirement plan with matching contributions
  • Life, legal, and supplementary insurance
  • Tuition reimbursement
  • Access to CoStar Group’s Diversity, Equity, & Inclusion Employee Resource Groups
  • Virtual and in person mental health counseling services for individuals and family
  • Commuter and parking benefits
  • Complimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks
  • Comprehensive healthcare coverage: Medical / Vision / Dental / Prescription Drug
  • Paid time off
  • On-site fitness center and/or reimbursed fitness center membership costs (location dependent), with yoga studio, Pelotons, personal training, group exercise classes
  • Employee stock purchase plan
Training + Development
Information not given or found
Interview process
Information not given or found
Visa Sponsorship
  • no visa sponsorship will be provided.
Security clearance
  • pre-employment substance abuse testing required.
Company
Overview
Founded 1987
Year Established
The year the company was first established.
  • Offers comprehensive data on properties, tenants, leases, and market conditions globally.
  • Known for its pioneering technology and research, delivers powerful insights to commercial real estate professionals.
  • Its旗舰平台, CoStar, provides unmatched property data, news, and analytics.
  • Platforms used by real estate professionals, from brokers to investors to property managers.
  • Expanded through strategic acquisitions, including the purchase of LoopNet and Apartments.com.
  • Data-driven insights help clients make informed investment and leasing decisions, shaping the global real estate market.
Culture + Values
  • Customer Focused: We strive to make a positive impact on our customers through innovative solutions.
  • Ownership: We take personal responsibility for delivering results.
  • Integrity: We act with transparency and integrity in everything we do.
  • Innovation: We drive progress through creativity and technology.
  • Collaboration: We believe in the power of diverse teams working together to achieve more.
  • Excellence: We are dedicated to the pursuit of excellence in our products and services.
Environment + Sustainability
2040
Net Zero Commitment
Aims to achieve net zero carbon emissions by this target year.
  • Committed to energy-efficient building designs and energy-saving programs.
  • Uses technological advancements to reduce environmental impact.
  • Annually tracks and reports on carbon footprint and environmental metrics.
Inclusion & Diversity
40% Global Workforce
Women Representation
Approximately 40% of the global workforce consists of women.
  • Committed to creating an inclusive and diverse workplace where all employees can thrive.
  • Has set specific goals to increase the representation of women in leadership roles.
  • Implemented training programs to promote diversity awareness and inclusive leadership.
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Senior Offensive Security Engineer at Costar Group in Arlington, VA