Red Team Security Test Engineer

Chicago, IL

*We are unable to sponsor for this 6+ month contract role*

Prestigious Financial Company is currently seeking a Red Team Security Test Engineer. Candidate will help plan, design and execute security red team related activities (eg, Intelligence Gathering, Network/Operating System/Application Penetration Testing, Web Application Penetration Testing, Mobile Application Testing, Social Engineering, Basic Emissions/Signals Testing, Physical Security Testing, Command and Control (C2) Infrastructure Development, Cyber Defense Evasion Stealth techniques, etc.)

Responsibilities:

  • Assist with ad-hoc white-box penetration testing work of OCC's infrastructure that is still currently in Development, or in need of pre-Production penetration testing
  • interact with multiple teams such as Cyber Defense, Security Assurance, and various other Security and IT teams to coordinate penetration testing engagements and re-test remediated Red Team findings.
  • Produce reports and present findings to various levels of leadership and staff relating to security testing activities, as needed
  • Perform security risk assessment, threat analysis and threat modelling.

Qualifications:

  • Strong proficiency in Network, Web Application, and Mobile Device security testing
  • Demonstrated exploit, payload, and attack framework development experience
  • Strong knowledge of EDR detection capabilities such as Crowdstrike/Carbon Black, etc. and associated defense evasion techniques for behavioral based alerting
  • Strong proficiency in social engineering and intelligence gathering.
  • Strong experience with custom Scripting (Python, Powershell, Bash, etc.) and process automation.
  • Knowledge how to build Command and Control (C2) infrastructure and execute Cyber Defense Evasion techniques to help enhance Cyber Defense monitoring/alerting capabilities for C2 traffic specifically
  • Strong understanding of security vulnerabilities and develop relevant exploits/payloads for use during Red Team activities
  • Strong experience with database security testing (MSSQL, DB2, MySQL, etc.).
  • Strong proficiency with common penetration testing tools (Kali, Armitage, Metasploit, Cobalt Strike, Nighthawk, Nmap, Qualys, Nessus, Burp Suite, Wireshark, Recon-NG, Ettercap/Bettercap, Hashcat, Bloodhound, Ida Pro, Ghidra, Sublist3r, Rubeus, Mimikatz, CrackMapExec, Exploitdb, Yersinia, Impacket, etc.).
  • Track record of vulnerability research and CVE assignments
  • Knowledge of Windows APIs and Living off the Land (LOL) Binaries
  • Experience with Mainframes, Windows, Unix, MacOS, Cisco, platforms and controls.

Education and/or Experience:

  • BS in Computer Science, Information Management, Information Security or other comparable technical degree from an accredited college/university desired.
  • 3+ Years' experience of Penetration testing
  • 5+ Years' experience in Information Assurance or Information Security environment.

Certifications:

  • [Preferred] Professional security certifications a plus (OSCP, OSWE, GXPN, GMOB, GWAPT, etc.)
Posted 2025-08-19

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