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Offensive Security Consultant

Advanced Resource Managers
London
1 week ago
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Up to 60 days over the next year (days differ week to week – ad-hoc basis) – Outside IR35 - up to £600 per day

Must be eligible for SC Clearance. Must have CREST certification CRT or higher

Role Overview:

We are seeking a highly skilled and experienced Offensive Security Consultant with a strong focus understanding on threat intelligence and attack methods. The ideal candidate will be responsible for managing and conducting advanced penetration testing engagements, leveraging threat intelligence to simulate real-world attacks across a variety of environments, including OT, IT, web applications, cloud infrastructure, and APIs. This role requires a deep understanding of adversarial approaches, excellent communication skills, and the ability to provide strategic and actionable recommendations to significantly enhance our clients' security posture.

Responsibilities:

  • Lead and manage the full lifecycle of complex penetration testing engagements, applying a strong threat intelligence-led approach.
  • Execute advanced penetration tests across a broad range of environments (applications, infrastructure, web, APIs, O365, Azure, AWS, OT), directly applying your knowledge of current threat landscapes and attacker TTPs.
  • Develop and maintain sophisticated test plans, execution plans, and targeted use cases directly informed by in-depth threat intelligence analysis.
  • Identify and prioritize OT and IT assets, services, and systems based on their criticality and potential exposure to identified threats.
  • Strategically prioritize, plan, and schedule penetration testing engagements based on comprehensive threat assessments and client-specific requirements.
  • Produce high-quality, detailed reports that clearly articulate technical findings, potential business impact, and strategic, actionable remediation recommendations for both technical and non-technical stakeholders.
  • Clearly and effectively communicate complex security concepts, adversarial tactics, and critical threat intelligence insights to diverse audiences.
  • Collaborate closely with client IT and cybersecurity teams to drive the enhancement of security protocols and ensure effective, threat-informed remediation of identified vulnerabilities.
  • Track the progress of remediation efforts and provide regular, concise updates to stakeholders, highlighting the reduction of identified threats.
  • Conduct proactive security research and contribute to the creation of technical content on emerging threats, advanced attack techniques, and threat intelligence-led testing methodologies.
  • Contribute to strengthening security monitoring (blue team) capabilities by providing valuable insights into offensive techniques and adversarial behaviours to enhance detection and response effectiveness.
  • Drive the patching regime for identified vulnerabilities, prioritizing remediation efforts based on threat intelligence and the potential for exploitation by advanced threat actors.

Skills and Qualifications:

  • Minimum of 5 years of demonstrable professional experience in penetration testing, with a strong emphasis on understanding, emulating, and leveraging adversarial tactics and threat intelligence.
  • Comprehensive understanding of OT and IT asset profiles, technologies, and security best practice principles, with a proven ability to contextualize them within the current threat landscape.
  • In-depth knowledge of network protocols, cryptography, security vulnerabilities, and common attack vectors employed by sophisticated threat actors.
  • Demonstrated proficiency in utilizing a wide range of penetration testing tools and methodologies, including those specifically used for threat intelligence analysis and application.
  • Proven experience in scoping and executing complex penetration tests, particularly those directly informed and driven by threat intelligence.
  • Exceptional written and verbal communication skills, with the ability to articulate complex technical findings and nuanced threat intelligence insights clearly and concisely to diverse audiences.
  • Strong organizational and time management skills, with a proven ability to effectively manage and prioritize multiple concurrent engagements.
  • Current CREST CRT certification or higher is essential.
  • Must hold or be eligible for SC Clearance.
  • Experience with Breach Attack Simulation tools and methodologies.
  • Experience in Vulnerability Management processes and integrating threat intelligence.
  • Understanding of Risk Management frameworks and how threat intelligence informs risk assessments.
  • Hands-on experience with security reviews of AWS, Azure, and GCP environments, incorporating cloud-specific threats.
  • Experience with ISO 27001 auditing/implementation, understanding the role of threat intelligence in compliance.
  • Other advanced cybersecurity certifications such as CISM, CISSP, ECSA, CREST CCT.

Seniority level

  • Seniority levelMid-Senior level

Employment type

  • Employment typeContract

Job function

  • Job functionInformation Technology
  • IndustriesIT Services and IT Consulting

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