Senior Penetration Tester

CGI; United Kingdom; Hybrid; GBP 45,000 - 70,000; Full time

Job summary

A leading cybersecurity consultancy in the UK is seeking experienced Penetration Testers to enhance their security offerings. The role offers opportunities for career development, with a strong emphasis on ongoing training and flexible working options. Candidates should possess relevant certification and a background in diverse testing environments, supporting a commitment to security excellence.

Qualifications

• Experience with mobile applications and cloud technologies.
• Holding relevant security certifications preferred.
• Familiarity with bespoke applications and penetration testing.

Responsibilities

• Conduct penetration testing for public and private sector clients.
• Progress to team leader or principal tester roles.
• Work flexibly including remote and onsite across the UK.

Skills

Vulnerability Management

Incident Response

Security Architecture Design

Education

CHECK Team Leader (CTL)

Offensive Security Certified Professional (OSCP)

CREST Certified Tester (CCT)

Job description

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Employer: CGI

Location: United Kingdom

Salary: Competitive

Closing date: 25 Jun 2025

Sector: IT

Job Role: Penetration Tester

Job Type: Permanent

About CGI Cyber Security Team

Our UK Cyber Security Team is one of the largest cybersecurity consultancies in the UK, with around 300 members. We work across various domains including Government, Defence, Critical Infrastructure, Healthcare, Utilities, Banking, and Financial Services. At CGI, you'll have the opportunity to work across multiple areas of Cyber Security, fostering your growth and career development.

We provide comprehensive services to our clients, including Risk Assessments, Vulnerability Management, ISO27001 and GDPR compliance, Governance, Risk, and Compliance (GRC), Security Architecture Design and Implementation, Incident Response, Protective Monitoring, Penetration Testing, and more.

Our goal is to enhance our clients' security posture and maturity, ensuring they are confident in their security measures and systems, tailored to their needs.

Training and Development

We prioritize training and development, offering ongoing education to keep you current with the latest trends in an evolving landscape. We support your career ambitions and help you progress in your chosen direction.

Security Clearance

Roles are available only if you hold or can obtain a UK Security Clearance.

Your Future Duties and Responsibilities

We are looking for experienced penetration testers to join our expanding team. CGI has a longstanding reputation in this area, conducting rigorous testing for a variety of clients in both the public and private sectors for over 30 years. Experience with bespoke applications, cloud technologies, and mobile applications across diverse platforms would be advantageous.

You will have the opportunity to progress to team leader or principal tester roles and work flexibly, including at home and onsite across the UK.

Qualifications

We are interested in candidates holding any of the following qualifications:

• CHECK Team Leader (CTL)
• CHECK Team Member (CTM)
• CREST Certified Simulated Attack Specialist (CCSAS)
• CREST Certified Tester (CCT), including CCT Inf and CCT App
• Cyber Scheme Team Leader (CSTL)
• TigerScheme Qualified Security Team Leader (QSTL)
• Crest Registered Tester (CRT)
• Cyber Scheme Team Member (CSTM)
• TigerScheme Qualified Security Team Member (QSTM)
• CREST Practitioner Security Analyst (CPSA)
• Offensive Security Certified Professional (OSCP)

Join us to turn meaningful insights into action, fostering ownership, teamwork, respect, and belonging. We support your growth, well-being, and career development in a company built to last.