Penetration Tester

Salary: £71,000 - 81,000 per year

Requirements:

• Commercial penetration testing experience
• Experience in infrastructure and application security testing
• Strong knowledge of attacker TTPs and offensive security methodologies
• Experience in vulnerability assessment and security risk management
• Experience working with or assessing OT, ICS, or industrial environments
• Excellent technical reporting and stakeholder communication skills

Responsibilities:

• Plan and deliver penetration testing across a diverse technology estate, including IT infrastructure, business applications, and Operational Technology
• Deliver infrastructure, web application, and internal penetration testing
• Assess Operational Technology 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 technical teams, security, infrastructure, and engineering teams to improve resilience
• Prioritise remediation, improve security controls, and provide expert guidance on emerging threats

Technologies:

• Support
• Security
• Web

More:

We are a collaborative cyber security function based in South Wales offering a hybrid working model and a competitive package including a bonus, excellent pension, ongoing technical training and certification support, and long-term career progression. Our team values technical excellence, continuous learning, and innovation, and we provide exposure to enterprise-scale environments as well as Operational Technology and critical infrastructure. This role offers the opportunity to work on security challenges that make a real difference by helping protect systems underpinning critical services used by millions of people across the UK.

last updated 31 week of 2026