Remote Penetration Tester for Critical Infrastructure

Thales Group; Crawley; On-site; GBP 45,000 - 65,000; Full time

Benefits offered by this job

Private healthcare

Performance-related bonus

28 days annual leave

Pension scheme

Life cover

Volunteer day

Employee discounts

Job summary

Thales Group in Crawley, United Kingdom, is seeking a skilled Penetration Tester to identify vulnerabilities across IT/OT environments and help secure critical systems. You will perform testing, report findings clearly, and contribute to risk mitigation and security governance on high-security programmes, including defence and aerospace projects.

A security clearance is required, and successful candidates will join a global engineering team dedicated to protecting national infrastructure.

Qualifications

• Hands-on penetration testing experience across IT and/or OT environments.
• Experience communicating technical risks and security vulnerabilities clearly.
• Degree in Computer Science, Engineering, or equivalent.
• Industry certifications such as CREST, OSCP, CEH, GPEN, GXPN.

Responsibilities

• Conduct penetration testing across IT/OT, Windows, Linux, mobile, web and cloud environments.
• Identify, exploit and clearly communicate security vulnerabilities and risks.
• Produce high-quality security reports and evidence for accreditation.
• Advise on security controls and risk mitigation aligned to customer needs.

Skills

Penetration testing

IT/OT security

Security reporting

Risk mitigation

Education

Degree in Computer Science or Engineering

Tools

CREST

OSCP

CEH

GPEN

GXPN

Job description

Thales Group in Crawley, United Kingdom, is seeking a skilled Penetration Tester to identify vulnerabilities across IT/OT environments and help secure critical systems. You will perform testing, report findings clearly, and contribute to risk mitigation and security governance on high-security programmes, including defence and aerospace projects.

A security clearance is required, and successful candidates will join a global engineering team dedicated to protecting national infrastructure.