Senior Penetration Tester

Nopsec Brooklyn , NY 11201

Posted 1 week ago


Conducts research & penetration testing on external facing resources as well as internal assets to determine risks

Oversee vulnerability research and exploit development activities.

Execute simulated attacks within virtual and production environments

Conduct research on penetration testing automation and adversarial simulation

Stays on top of the "vulnerability landscape" and prepare counter-measures

Develop scripts, tools, or methodologies to uncover active risks in advance of the public.

Attack simulation and analysis

Recognize and safely utilize attacker tools, tactics, and procedures

Author comprehensive and accurate reports and presentations for both technical and executive audiences

Effectively communicate & reproduce findings to stakeholders at all levels across the organization

Provide subject matter enterprise to stakeholders to reproduce findings/reverse engineer exploits/attacks

Provide detection guidance to other team members in a timely manner

Train other team members in penetration testing methodologies

Actively participate in Red Team engagements including Social Engineering and Internal network lateral movement.


Desired Skills and Experience

  • Experience in:
    • Web, mobile and/or service-based application vulnerability assessments
    • Network penetration testing of enterprise network infrastructure
    • Developing applications in Python and / or C/C++/C#
    • Developing, extending, or modifying exploits, shellcode or exploit tools
    • Source code review for control flow and security flaws
  • Proficient in one or more operating systems (Unix/Linux/Mac/Windows)
  • Strong knowledge of network protocols, data on the wire, and covert channels
  • Knowledge of web application exploitation methodologies Familiar with fundamentals of software exploitation on multiple operating systems
  • Ability to independently research new vulnerabilities in software products
  • Admirable communication skills (verbal and written) are required
  • Excellent written skills, articulating highly technical topics to a wide range of audiences
  • Vulnerability exploitation, payload creation and exploit development
  • Proficient with Bash, Python, and has a basic understanding of
    programming in Windows environments
  • In depth knowledge of the OWASP top 10 in terms of risk and
    exploitation methods.
  • In depth familiarity with the Metasploit framework, and post
    exploitation methods to migrate laterally within organizations.
  • Capable of taking the lead role on application, network, wireless, mobile,
    and social engineering engagements including kick off meetings, testing,
    and documentation
  • Familiarity with Kali Linux, and the operation of the tools it is packaged with (Ettercap, Nmap, John the Ripper, Fierce, ike-scan, Mimikatz, Responder, Metasploit, SMBMap, etc.)


  • Bachelor's degree in a technical field or equivalent experience
  • Masters Degree in Cyber Security, Computer Science, or Technology related fields a plus but not required
  • Preferred certifications:
    • OSCP (Offensive Security Certified Professional),
    • OSCE (Offensive Security Certified Expert)
    • GWAPT (GIAC Web Application Penetration Tester)
    • GPEN (GIAC Penetration Tester)
    • GXPN (GIAC Exploit Researcher and Advanced Penetration)


  • Competitive salary in line with NY living
  • Great location: Dumbo, Brooklyn
  • Open Space and Philosophy
  • Annual Bonus
  • Stock Options
  • Health and Dental Insurance
  • 401(K) plan
  • Generous vacation
  • Flexible hours
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Senior Penetration Tester