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Penetration Tester Jobs

Ethical hackers who simulate cyber attacks to identify vulnerabilities. A critical role in safeguarding digital assets and ensuring robust security.

Open roles
6
Salary range
£35k – £80k
Hiring companies
4
View 6 live roles → Get an alert

Penetration testers, also known as ethical hackers, play a vital role in the cyber security landscape. They simulate real-world cyber attacks to identify and mitigate vulnerabilities in systems, networks, and applications. These professionals are hired by a range of organisations, from scaleups and research-heavy startups to larger consultancies, to ensure that digital defences are robust and resilient.

What the role does

Inside the role of a Penetration Tester

A typical week for a penetration tester is a mix of planning, execution, and reporting. They spend time researching attack vectors, conducting tests, and documenting findings.

  1. 01
    Conduct initial reconnaissance on target systems
  2. 02
    Execute simulated attacks to identify vulnerabilities
  3. 03
    Document findings and prepare detailed reports
  4. 04
    Collaborate with development teams to address identified issues
  5. 05
    Stay updated on the latest security threats and techniques
  6. 06
    Participate in debriefing sessions with clients or stakeholders
Salary on the board

£35k – £80k

Based on advertised midpoints across the 3 priced listings posted in the last 12 months. Base salary only.

By seniority
£k base
Entry
35
45
1 job
Mid
78
78
1 job
Senior
70
80
1 job
Career ladder

From Junior to Principal

A typical UK progression for penetration testers. Years are guidance — strong people move faster, and many senior folks sidestep into research, product or management.

  1. Level 1

    Junior Penetration Tester

    0–2 yrs

    Assists in planning and executing basic penetration tests under supervision. Focuses on learning and understanding security testing methodologies.

  2. Level 2

    Penetration Tester

    2–5 yrs

    Conducts comprehensive penetration tests independently. Owns the execution and reporting of test results, and provides recommendations for remediation.

  3. Level 3

    Senior Penetration Tester

    5–8 yrs

    Leads complex penetration testing projects. Mentors junior team members and collaborates with clients to develop and implement security strategies.

  4. Level 4

    Principal Penetration Tester

    8+ yrs

    Oversees the entire penetration testing function. Develops and standardises testing methodologies, and advises on high-level security policies and practices.

Pathway

How to become a Penetration Tester

There's no single route, but most people follow some version of these steps.

  1. 1

    Learn the Basics

    Start with foundational knowledge in networking, programming, and security principles. Gain hands-on experience through courses and certifications.

  2. 2

    Gain Practical Experience

    Work on real-world projects, either through internships or entry-level roles. Build a portfolio of penetration testing reports and case studies.

  3. 3

    Specialise in Tools and Techniques

    Develop expertise in specific tools and techniques used in penetration testing. Stay updated with the latest trends and threats in the cyber security landscape.

  4. 4

    Lead Projects and Teams

    Take on leadership roles, managing complex penetration testing projects and mentoring junior team members. Collaborate with clients to implement security solutions.

  5. 5

    Advise on Security Strategy

    Provide strategic advice on security policies and practices. Influence organisational decisions and contribute to the development of industry standards.

Live jobs

6 live roles

Bridewell logo

Penetration Tester

As a result of growth, we are looking for an experienced Penetration Tester with solid experience of infrastructure and web application testing to deliver testing engagements on a range of key client work.This is an excellent opportunity for a highly...

Bridewell London, United Kingdom
Remote Permanent
Darktrace logo

Specialist Penetration Tester

Darktrace is a global leader in AI for cybersecurity that keeps organizations ahead of the changing threat landscape every day. Founded in 2013, Darktrace provides the essential cybersecurity platform protecting nearly 10,000 organizations from unknown threats using its proprietary AI.The...

Darktrace London, UB8 1LQ, United Kingdom
Darktrace logo

Specialist Penetration Tester

Darktrace is a global leader in AI for cybersecurity that keeps organizations ahead of the changing threat landscape every day. Founded in 2013, Darktrace provides the essential cybersecurity platform protecting nearly 10,000 organizations from unknown threats using its proprietary AI.The...

Darktrace Cambridge, CB2 3BJ, United Kingdom

Senior Penetration Tester

The Senior Penetration Tester will lead complex security assessments, collaborate with defensive teams on purple team exercises, and mentor junior testers. Responsibilities include scoping and delivering advanced penetration tests, producing high-quality reports, and contributing to secure development practices.

VIQU IT Horsham, West Sussex, United Kingdom £70,000 – £80,000 pa
Hybrid Permanent

Security Penetration Tester

As a Security Penetration Tester, you will be responsible for supporting the design, implementation, and maintenance of TVM (Threat & Vulnerability Management) solutions, controls and processes across the organisation. You will be liaising with Digital teams to ensure appropriate mitigation...

Pertemps Thames Water Reading, Berkshire, United Kingdom £78,000 pa
Hybrid Permanent Clearance Required

Graduate Security Consultant & Penetration Tester

As a Graduate Security Consultant & Penetration Tester, you will work closely with industry veterans to conduct security assessments, penetration testing, and risk analysis for high-profile clients. You will receive structured training and mentorship, with opportunities to earn professional certifications and contribute to critical projects across various sectors including telecommunications, finance, and defense.

STEM Bristol, Bristol (county), United Kingdom £35,000 – £45,000 pa
On-site Permanent
Hiring locations

Where this role is hiring

The locations with the most live listings for this role today.

London

Location
1 open

Bristol

Location
1 open

Reading

Location
1 open
FAQs

Common questions

  • A degree in computer science or a related field is beneficial, but practical experience and relevant certifications like CEH or OSCP are highly valued.

  • Participate in industry conferences, join professional groups, and follow leading security blogs and forums. Continuous learning is crucial in this field.

  • Salary ranges can vary widely based on experience and location. For more detailed information, refer to the salary section on this page.

  • Strong technical skills in networking and programming, a deep understanding of security principles, and the ability to think creatively and solve complex problems are essential.

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