Head of Purple Team Operations

3 weeks ago


Belfast, United Kingdom TP ICAP Full time

Position Summary

As a pivotal member of the Cyber Defence team within Information Security, you will spearhead TP ICAP's purple team initiatives, ensuring the organization is adept at thwarting and identifying contemporary cyber threats. With the firm undertaking significant EDR and SIEM upgrade projects, your role will focus on validating the effectiveness of these tools through threat-driven exercises and the development or modification of detection protocols.

Expertise in modeling advanced and persistent adversaries is crucial, and you will have access to established tools such as Prelude, Cobalt Strike, and Vectr, along with any additional resources you deem necessary.

Key Responsibilities

  • Design and implement purple team exercises that significantly enhance TP ICAP's capabilities in preventing and detecting modern cyber threats.
  • Replicate both traditional and emerging attacker tactics, techniques, and procedures (TTPs), while personally crafting the corresponding detection protocols and response strategies.
  • Through the execution of purple team exercises, pinpoint opportunities to minimize TP ICAP's exposure to threats using proactive measures.
  • Collaborate with the Security Engineering team as needed to facilitate the deployment and optimization of security tools, particularly those related to prevention and detection.
  • Create methodologies for continuous attack surface monitoring and validation through automation.
  • Serve as a point of escalation for the Security Operations Center (SOC) and support incident response efforts.

Qualifications and Skills

Essential:

  • Hands-on experience in emulating complex cyber threats, likely in a purple or red team context.
  • Thorough knowledge of contemporary attacker tools, techniques, and procedures.
  • Proficient in identifying suitable telemetry sources for data collection and utilizing these to develop custom attack detection protocols when standard solutions are insufficient.

Desired:

  • Active participant in offensive security research and/or tool development, potentially presenting findings at recognized industry conferences.
  • Experience collaborating with a SOC to: Enhance existing detection protocols and improve alert accuracy while reducing alert fatigue; Involve analysts in the purple team process to support staff retention; Educate analysts on modern attacker TTPs and the 'attacker mindset'.
  • Ability to bypass defensive measures such as EDR and antivirus, customizing open-source tools and developing proprietary solutions as necessary.
  • Familiarity with Infrastructure-as-Code methodologies to facilitate emulation tasks, such as Terraform or Ansible.
  • Experience in attacking or securing cloud infrastructures, particularly AWS.
  • Proficiency in one or more programming languages, ideally including Python.

#LI-Hybrid #LI-MID


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