Senior Cybersecurity Consultant (Penetration Tester)

JR United Kingdom; City Of London; On-site; GBP 50,000 - 80,000; Full time

Job summary

A premier UK consultancy seeks a Senior Cybersecurity Consultant (Penetration Tester) to join a team of experts. This dynamic role involves conducting sophisticated security tests and working directly with clients. Candidates should possess relevant certifications and demonstrate strong analytical skills, contributing to both internal and client-facing initiatives.

Qualifications

• Possesses industry-recognised certifications such as CTM, OSCP, or CREST.
• Strong knowledge in penetration testing areas like mobile app security or cloud environments.
• Keen to deliver high-quality ethical hacking training.

Responsibilities

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

Skills

Technical Skills

Problem-Solving

Analytical Skills

Collaboration

Curiosity

Job description

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Senior Cybersecurity Consultant (Penetration Tester), london (city of london)

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Client:

Anson McCade

Location:

london (city of london), United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Views:

2

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.