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Junior/Mid Penetration Tester/ Check scheme must hold - CTM/CSTM with SC. You will be an enthusiastic tester with a few years of experience under your belt. You will be part of a talented and collaborative international team who are positioning Resillion as an industry leader in delivery of pene

Penetration Tester (CHECK / CREST). We are looking for experienced Penetration Testers to join one of the UK's larger dedicated offensive security practices. With a team of around 70 testers split across CHECK and CREST wor.

Senior Information Security Tester / Senior Penetration Tester. This is a highly visible, hybrid role combining hands-on penetration testing with strategic input, stakeholder engagement, and mentoring responsibilities. API, and infrastructure penetration testing.

Penetration Tester (CHECK Team Member). Penetration Tester (CHECK Team Member). Deliver high-quality penetration tests and vulnerability assessments.

Roles include security analysts, penetration testers, and threat intelligence specialists.

Bridewell Consulting Limited is seeking an experienced Senior Penetration Tester in the UK to deliver high-quality penetration testing across various client projects.

Barclay Simpson is seeking an experienced Penetration Tester to join their team in Greater London.

A-LIGN External, located in London, is seeking a Penetration Tester to deliver high-quality security assessments for a diverse portfolio of clients. The role involves executing various penetration tests, generating reports, and enhancing client security.

As an experienced Penetration Tester at Starling, you’ll be joining an established team, working with talented cybersecurity professionals to ensure our services are designed, developed and operated securely. Penetration testing qualifications (e. CREST Certified Tester, OSCP) or equivalent indust

Role: Penetration Tester Location: Leeds (Hybrid + Site Visits) Salary: £40,000 - £45,000 DOE Type: Permanent, Full-Time Summary: We are looking for a skilled and motivated Penetration Tester to join a growing security team in Leeds. Benefits: Salary: £40,000 - £45,000 DOE Hybrid Working Compa

We have an exciting opportunity for a Senior Penetration Tester to join our thriving Cyber Security practice. We are seeking a skilled individual, with expertise in penetration testing or vulnerability research, who can contribute to the development of innovative solutions and security outcomes to s

A progressive financial institution in Greater London is looking for an experienced Penetration Tester to join their team. Ideal candidates have over 5 years of experience in penetration testing, a strong foundation in mobile and web security, and communication skills.

A leading digital bank in the UK is seeking an experienced Penetration Tester to join their cybersecurity team. This role involves performing penetration tests and advising on security improvements. Candidates should have 5+ years in technical security, experience with mobile and web applications, a

Uniting Ambition IT Contract is seeking an experienced Senior Security Penetration Tester to join their Information Security function for an initial 3-month contract. The role involves conducting penetration testing to identify vulnerabilities across networks and applications.

The role involves conducting security assessments, performing penetration testing, and investigating security findings. The National Physical Laboratory (NPL) is seeking a skilled Security Tester to join their team in Solihull.

Have solid experience in penetration testing and offensive security.

This is a fantastic opportunity for an experienced penetration tester to move into an internal role with a leading financial services firm. The role offers variety across Penetration Testing (WebApp, Infrastructure – internal and external, and Cloud) along with involvement in Purple Teaming and Re

As a penetration tester in our CTAS team you’ll play a vital role in helping our clients detect, understand and manage their security risks. Your roleBeing certified as a CHECK Team Member (CTM) is a prerequisite to joining our CTAS team as a penetration tester. As a member of this team, you’ll

Have developed SME knowledge in one or more fields of penetration testing, such as mobile application testing, Cloud, Operational Technology, or a specific industry/environment such as telecoms, defence, or maritime. Develop and share knowledge with the rest of the penetration testing team.

Ideal candidates are eager learners with strong communication skills, and experience in manual penetration tests across a range of applications. Assessments & Exercises Vice President in Penetration Test. In this key role, you will enhance the firm's cybersecurity through hands-on penetration testin

You will be responsible for conducting hands-on penetration testing and mentoring junior team members, all within a collaborative work environment.

This is an opportunity to join the Bank of England’s Pentest Team as a Junior Penetration Tester and build your career in offensive security. You’ll gain hands‑on experience in penetration testing, vulnerability assessment, and support for red and purple team activity, working alongside experi

CAPGEMINI is looking for a penetration tester to join their Cybersecurity Practice in the UK. In this role, you will conduct penetration tests to identify and manage security risks for clients, using both manual and automated techniques.

This is an opportunity to join the Bank of England's Pentest Team as a Junior Penetration Tester and build your career in offensive security. Hands‑on penetration testing experience, ideally around two years or more. A recognised penetration testing certification, or clear progress towards one, su

As a penetration tester in our CTAS team you’ll play a vital role in helping our clients detect, understand and manage their security risks. Being certified as a CHECK Team Member (CTM) is a prerequisite to joining our CTAS team as a penetration tester. As a member of this team, you’ll deliver h

Mistral is seeking a hands-on Penetration Tester in Greater London to join our Offensive Security team. Your expertise will help shape how AI transforms penetration testing.

Oscar is seeking a Cyber Security Consultant / Penetration Tester to deliver security testing across various environments. This role involves hands-on penetration testing, identifying vulnerabilities, and providing remediation guidance. The ideal candidate will have SC clearance, experience in penet

UBDS Digital seeks a Senior Penetration Tester to lead various engagements and maintain CHECK Green Status while supporting customer needs. The ideal candidate will possess relevant CTL qualifications, demonstrate strong leadership skills, and have a passion for penetration testing.

Alignerr is seeking an experienced AI Penetration Tester to conduct security assessments on AI applications and infrastructure. The ideal candidate will have extensive experience in penetration testing, strong knowledge of offensive security principles, and proficiency in tools like Burp Suite and K

A-LIGN will depend on you as the Penetration Tester to support management, plan and execute sophisticated penetration tests, and ensure the ongoing protection of our clients’ most critical systems and data. The Penetration Tester works to execute department activities and deliver high-quality secu

Being the Lead Penetration Tester on a wide portfolio of penetration testing engagements including complex CHECK engagements and ITHCs as well as large projects for our key clients. B Data Security (part of UBDS Group) is seeking a skilled and experienced Senior Penetration Tester to provide excepti

UBDS Group is seeking a skilled Senior Penetration Tester to lead CHECK engagements and mentor junior team members. You will drive high-quality service delivery and maintain CHECK Green status while managing a wide portfolio of penetration testing assignments, including both infrastructure and appli

The Bank of England is looking for a Lead Penetration Tester to strengthen its security in Leeds. You will play a pivotal role in leading penetration testing, assessing vulnerabilities, and providing technical leadership across teams. Ideal candidates should possess extensive hands-on experience in

Would be nice have CREST Registered Penetration Tester (CRT). Offensive Security Tester / REMOTE. Offensive Security Tester | UK-Based (Remote Options).

Darkshield is seeking an experienced Penetration Tester in York, UK, to conduct security assessments and ethical hacking.

A leading cybersecurity consultancy in the UK is seeking a skilled Senior Penetration Tester to join their Cyber Security practice. The role involves leading penetration testing engagements, providing technical advice on security technologies, and contributing to innovative cybersecurity solutions.

LSEG is seeking a senior penetration tester to join our internal offensive security team. This role is hands‑on and deeply technical, responsible for planning and driving penetration tests across a wide range of systems and applications. Conduct in‑depth penetration tests on applications, infras

Being the Lead Penetration Tester on a wide portfolio of penetration testing engagements including complex CHECK engagements and ITHCs as well as large projects for our key clients. B Data Security (part of UBDS Group) are looking for a skilled and experienced Senior Penetration Tester who can provi

Perform hands‑on penetration testing across hardware, software, and telecoms‑specific technologies to identify vulnerabilities in complex systems. Have a background in infrastructure, networking, or software development and hands‑on penetration testing experience (this is not an entry level ro

Mercor is looking for a Cybersecurity Expert to evaluate AI-generated outputs related to threat analysis and cybersecurity workflows.The role requires 3+ years of experience in cybersecurity, with a focus on SOC analysis and incident response.This is a remote position, offering task-based compensati

Sanderson is seeking a Senior Information Security Tester to join a growing cyber security team in the United Kingdom. This hybrid role involves conducting web application and API penetration testing while engaging with stakeholders and mentoring junior team members.

Bank of England is looking for a Lead Penetration Tester to strengthen the security of its systems and services. The successful candidate will have significant penetration testing experience and the ability to provide technical leadership. You will lead penetration testing, assess vulnerabilities, a

Alice (Formerly ActiveFence) is looking for a Senior Penetration Tester to join their security research division in the United Kingdom. The position involves leading advanced penetration tests on web applications and enterprise systems, engaging in Red Team projects, and developing security tools.

Security Penetration Tester for a contract role in the East Midlands. This hybrid position involves working three days a week, with an immediate start, to enhance the company's internal penetration testing capabilities. Ideal candidates will have proven experience in penetration testing, strong vuln

Hack The Box is looking for a Senior Penetration Tester to join their offensive security team in Greater London. This role involves conducting penetration tests on applications, infrastructure, and cloud environments. Candidates should have proven experience in penetration testing, proficiency with

A leading information security company in the UK is seeking an experienced penetration tester. This role involves conducting comprehensive penetration tests on various environments, including web applications and Cloud services.

A leading digital bank is seeking an experienced Penetration Tester to join their cybersecurity team. You will be responsible for conducting penetration tests and collaborating with engineering teams to enhance security measures.