Senior Penetration Tester

Computacenter AG & Co. oHG; England; Hybrid; GBP 50,000 - 70,000; Full time

Job summary

A leading IT infrastructure services provider in the UK is seeking an experienced Penetration Tester to join their dynamic Cybersecurity team. The role focuses on identifying vulnerabilities through various testing methodologies, contributing to security posture enhancement. Candidates should have OSCP or equivalent certification and significant experience in penetration testing. Join a collaborative environment that emphasizes development and support.

Qualifications

• OSCP, PNPT or equivalent certification required.
• At least three years’ experience in penetration testing.
• Experience in infrastructure, Active Directory, and cloud security.

Responsibilities

• Conduct internal and external network penetration tests.
• Research, identify, and exploit security vulnerabilities.
• Prepare detailed penetration test reports.
• Work collaboratively with development and security teams.

Skills

Vulnerability identification and analysis

Conduct comprehensive penetration tests

Red/Purple/Blue Teaming

Reporting and documentation

Collaboration and communication

Education

Bachelor’s degree in Cybersecurity, Information Technology, or a related field

Tools

Penetration testing tools

Job description

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Location: UK - Mobile England | Job-ID: 215877 | Contract type: Standard | Business Unit: Cyber Security

Life on the team

Computacenter is growing our penetration testing capability and we are looking for an experienced penetration tester to support the delivery of vulnerability assessment and penetration testing services to Computacenter and our customers delivered services.

As a highly skilled and motivated Penetration Tester, you will join our dynamic Cybersecurity team. In this role, you will be responsible for identifying vulnerabilities in systems, applications, and networks through a variety of penetration testing methodologies. Your expertise will play a critical role in strengthening our security posture and safeguarding our valuable assets from cyber threats.

We are keen to develop our own people and will look at individuals, you will be involved in so many business projects whilst working with passionate Cyber Security Professionals.

If you are looking for a team that offers development and flexibility look no further and apply today

What you'll do

A highly skilled and motivated Penetration Tester to join our dynamic cybersecurity team. In this role, you will be responsible for identifying vulnerabilities in our systems, applications, and networks through various penetration testing methodologies. You will play a critical role in strengthening our security posture and protecting our valuable assets from cyber threats. You will:

• Conduct comprehensive penetration tests: Execute internal and external network penetration tests, web application penetration tests, mobile application penetration tests, API penetration tests, cloud security assessments, and social engineering simulations.
• Vulnerability identification and analysis: Research, identify, and exploit security vulnerabilities in a variety of systems and applications.
• Red/Purple/Blue Teaming: participate in exercises with the goal of increasing cyber resilience for both offensive and defensive.
• Reporting and documentation: Prepare detailed and professional penetration test reports, including executive summaries, technical findings, risk ratings, and actionable recommendations for remediation.
• Collaboration and communication: Work closely with development, operations, and security teams to communicate findings, explain risks, and provide guidance on remediation strategies.
• Tooling and methodology enhancement: Continuously research and evaluate new penetration testing tools, techniques, and methodologies to improve testing efficiency and effectiveness.
• Security awareness: Contribute to the development and delivery of security awareness training for internal staff.
• Stay current: Keep abreast of the latest security threats, vulnerabilities, exploits, and industry best practices.
• Threat modelling: Participate in threat modelling exercises to identify potential attack vectors and design flaws.
• Ad-hoc security testing: Perform ad-hoc security assessments and provide expert advice on security-related matters as needed.

What you'll need

• OSCP, PNPT or equivalent certification
• At least three years’ experience working full-time as a penetration tester on the following areas as a minimum:
• Infrastructure
• Active Directory networks
• Cloud security (Entra ID/Azure)
• IoT
• physical security / social engineering
• Ability to develop custom tools, or adapt existing tooling for the task at hand
• Demonstrable experience contributing to open-source tools
• Bachelor’s degree in Cybersecurity, Information Technology, or a related field.

About us

Computacenter is a leading independent provider of IT infrastructure services, with about 20,000 employees worldwide. We work at the heart of digitisation, advising organisations on IT strategy, implementing the most appropriate technology and managing our customers’ infrastructures.

We offer a friendly, open working environment without too much fuss about hierarchy. We are looking for professionals with diverse competencies, personalities and strengths who want to live our shared value of teamwork and performance.

Interested in joining a company with a strong sense of community?

We’re growing. We’re hiring. We encourage. We empower. We support.
#winningtogether #peoplematter