Senior Cybersecurity Consultant (Penetration Tester)

JR United Kingdom; London; On-site; GBP 65,000 - 90,000; Full time

Job summary

A premier UK consultancy is seeking a skilled Senior Cybersecurity Consultant (Penetration Tester) to join its team. This role involves conducting penetration tests, producing reports, and advising clients on security measures. Candidates should possess industry-recognised certifications and have a strong desire to enhance security practices within diverse environments.

Qualifications

• Possesses relevant certifications such as CTM, CSTM, OSCP, or CREST.
• Specialist knowledge in penetration testing, including mobile app security and cloud environments.
• Strong desire to contribute to team growth and deliver high-quality training.

Responsibilities

• Conduct hands-on internal penetration tests in infrastructure environments.
• Produce clear technical reports for stakeholders.
• Work as a trusted advisor directly with clients.

Skills

Penetration Testing

Analytical Skills

Problem Solving

Collaboration

Education

Industry-recognised certifications (e.g., OSCP, CREST)

Job description

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Senior Cybersecurity Consultant (Penetration Tester), london

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Client:

Anson McCade

Location:

london, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Views:

7

Posted:

16.06.2025

Expiry Date:

31.07.2025

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Job Description:

A premier UK consultancy is seeking a skilled and passionate Penetration Tester to join its growing team of cybersecurity experts. This is a dynamic opportunity for individuals with strong technical skills and a proactive mindset, eager to make a tangible impact across a wide range of client environments.

Working on mission critical projects across National Security, Critical National Infrastructure and Defence the Senior Penetration Tester will liaise with highly-skilled teams acting as a trusted advisor.

Key Responsibilities:

• Conduct hands-on internal penetration tests in infrastructure/Active Directory environments
• Produce clear and concise technical reports, summarising findings for both technical and business stakeholders
• Work directly with clients as a trusted advisor – this is a consulting-facing role
• Operate in sensitive, high-risk environments where mistakes have real consequences
• Contribute to improving team tooling, processes, and client methodology
• Be comfortable working autonomously without extensive documentation or runbooks

Key Qualifications and Skills:

Candidates who meet the following criteria are strongly encouraged to apply – and even if every box isn’t ticked, applications are welcome, as related opportunities may also be available:

• Possesses industry-recognised certifications such as CTM, CSTM, CTL, CSTL, OSCP, or CREST/Cyber Scheme qualifications.
• Brings specialist knowledge in one or more areas of penetration testing – this could include mobile app security, cloud environments, operational technology (OT), or specific sectors such as telecommunications, defence, or maritime.
• Demonstrates a strong desire to contribute to the growth of the team – whether by supporting internal training initiatives, enhancing infrastructure and tooling, or helping plan and execute client engagements.
• Keen to deliver and evolve high-quality ethical hacking training as part of a CREST-accredited programme.
• Thrives in problem-solving environments, with excellent analytical skills and a curiosity-driven mindset.
• Enjoys working collaboratively with diverse stakeholders, bringing adaptability and energy to a fast-paced consulting environment.