Penetration Tester

Yolk Recruitment
Cardiff, South Glamorgan, CF10 2AF, United Kingdom
Today
£71,000 – £81,000 pa

Salary

£71,000 – £81,000 pa

Job Type
Permanent
Work Pattern
Full-time
Work Location
Hybrid
Seniority
Mid
Education
Degree
Visa Sponsorship
Available
Security Clearance
Required
Posted
29 Jul 2026 (Today)

Benefits

Annual bonus Excellent pension Hybrid working Ongoing technical training and certification support

Penetration Testing Specialist | South Wales | Hybrid | £71,000 - £81,000 + bonus + excellent benefits

The Role

Working as part of an established cyber security function, you'll be responsible for planning and delivering penetration testing across a diverse technology estate, including traditional IT infrastructure, business applications and Operational Technology.

Alongside hands-on testing, you'll work closely with technical teams and third-party security partners to prioritise remediation, improve security controls and provide expert guidance on emerging threats.

This is a varied technical role offering exposure to modern enterprise environments as well as industrial control systems and critical infrastructure.

What You'll Be Doing:

Deliver infrastructure, web application and internal penetration testing

Assess Operational Technology (OT) and industrial environments using safe testing methodologies

Research new vulnerabilities, exploits and attacker techniques

Identify weaknesses across people, processes and technology, including social engineering and information leakage

Produce clear technical reports with practical remediation advice

Support vulnerability management and technical risk assessment

Manage external penetration testing providers where required

Work closely with security, infrastructure and engineering teams to improve resilienceWhat We're Looking For:

You'll ideally have experience in several of the following:

Commercial penetration testing experience

Infrastructure and application security testing

Strong knowledge of attacker TTPs and offensive security methodologies

Vulnerability assessment and security risk management

Experience working with or assessing OT, ICS or industrial environments

Excellent technical reporting and stakeholder communication skillsWhat's on Offer?

Competitive salary

Annual bonus

Excellent pension

Hybrid working

Ongoing technical training and certification support

Exposure to enterprise-scale and Operational Technology environments

Long-term career progression within a growing cyber security functionWhy Apply?

This is an opportunity to work on security challenges that genuinely make a difference. You'll be testing and protecting systems that underpin critical services used by millions of people across the UK.

You'll join a collaborative cyber security team that values technical excellence, continuous learning and innovation, with opportunities to develop your offensive security expertise across both IT and OT environments.

If you're passionate about offensive security and want to apply your skills in an environment where every assessment has genuine impact, we'd love to hear from you

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