Penetration Tester - OT

Position: Penetration Tester

Location: London (with potential travel to client sites)

Contract Role - [6-12 months, extendable]

A deliverables-focused role, working on defined OT penetration testing engagements.

What You'll Do:

• Conduct thorough penetration tests on client systems, applications, and networks - specifically OT/ICS systems - to identify security weaknesses.
• Perform threat modelling and adversarial simulations.
• Collaborate with clients to understand their security needs and provide tailored recommendations.
• Develop and execute test plans, ensuring all testing is carried out ethically and professionally.
• Document and present findings in clear, concise reports, highlighting vulnerabilities and their potential impacts.
• Advise on remediation steps aligned with OT security best practices and relevant standards (eg IEC 62443, NIS2, NERC CIP).

Modis International Ltd acts as an employment agency for permanent recruitment and an employment business for the supply of temporary workers in the UK. Modis Europe Ltd provide a variety of international solutions that connect clients to the best talent in the world. For all positions based in Switzerland, Modis Europe Ltd works with its licensed Swiss partner Accurity GmbH to ensure that candidate applications are handled in accordance with Swiss law.

Both Modis International Ltd and Modis Europe Ltd are Equal Opportunities Employers.

By applying for this role your details will be submitted to Modis International Ltd and/or Modis Europe Ltd. Our Candidate Privacy Information Statement which explains how we will use your information is available on the Modis website.