Penetration Testing Specialist

Salary: £80,000 - 80,000 per year

Requirements:

• Strong understanding of penetration testing principles, methodologies, and tooling, with proven experience delivering infrastructure and application penetration tests safely and efficiently
• Strong understanding of safe approaches required for OT testing and proven experience of OT security assurance testing
• Strong understanding of attacker TTPs and vulnerability assessment
• Strong understanding of security risk assessment and risk management concepts and approaches
• Ability to work on our own initiative and think outside the box
• Experience with operational technology in the utilities sector or other industrial CNI environments is highly advantageous
• Excellent communication and interpersonal skills
• Ability to obtain UK Security Clearance
• CREST / CHECK certification is essential

Responsibilities:

• Define and manage the penetration testing schedule
• Conduct internal penetration testing of applications and systems
• Manage external vendors providing penetration services and arrange and schedule their work
• Proactively research vulnerabilities in external- and internal-facing systems and infrastructure across IT and OT
• Carry out social engineering activities
• Proactively research internal and external information leakage that may assist malicious actors in preparing for or executing an attack
• Prepare detailed reporting on vulnerabilities and the remedial actions recommended
• Accurately quantify discovered vulnerabilities in risk terms

Technologies:

• Security

More:

We are a leader in the utilities space, continuing to invest heavily in our cyber security, IT, and OT estate as we grow and enhance our security posture. This is a key role in a well-regarded business with strong feedback from people we have placed there. We offer a permanent position with a salary of £71k-£82k, strong benefits, hybrid working with 2/3 days per week in South Wales, a possible bonus, a 5% pension contribution from you with our 10% contribution, enhanced parental leave pay, and more.

last updated 31 week of 2026