Penetration tester jobs in RadcliffeCreate job alerts

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

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.

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

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.

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.

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.

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. Experience in mobile, web application, cloud and infrastructure penetration testing. Pene

Conduct hands‑on penetration testing within a dedicated in‑house lab environment, ensuring safe and controlled testing. Have strong experience in penetration testing, with a solid understanding of exploitation techniques and how they apply in real‑world environments.

Have solid experience in penetration testing and offensive security.

We have an exciting opportunity for a Senior Penetration Tester to join our thriving Cyber Security practice. Our commitment to security and quality is reinforced by our ISO27001 and ISO9001 certifications (UKAS), as well as our CREST‑approved penetration testing and SOC capabilities. We are seeki

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

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

Dataannotation is seeking experienced cybersecurity professionals to contribute to cutting-edge AI development.You'll evaluate AI-generated security content, work on technical issues, and provide feedback to shape AI systems.This independent contractor position offers competitive pay, flexible hours

A leading quantitative investment management firm is looking to hire a Penetration Tester to join its established Security Assurance function. Integrate penetration testing into CI/CD pipelines, including validation of SAST/DAST findings and runtime security controls. Proficiency with standard penet

Paragon Alpha - Hedge Fund Talent Business is seeking an experienced Penetration Tester to join their internal security team. The ideal candidate must be comfortable with penetration testing, able to communicate well with technical teams, and possess a genuine curiosity about system vulnerabilities.

As an Assessments & Exercises Vice President in Penetration Test, you will play a significant role in enhancing our firm's cybersecurity and resiliency posture. As a key member of our team, you will perform hands-on penetration testing of some of our most critical applications, platforms, and the pe

You will conduct penetration tests, assess application security, and engage with development teams to improve security practices.

As an experienced Penetration Tester at Starling, you’ll be joining an established team, working with talented cyber security professionals to ensure our services are designed, developed and operated securely. Experience in mobile, web application, cloud and infrastructure penetration testing. Pen

We are looking for an experienced Penetration Tester to join our team. We help organisations navigate an increasingly complex digital landscape by providing expert services in penetration testing, vulnerability assessment, managed security, and more. Conduct penetration testing on networks, applicat

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

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.

Capital One Offensive Security reduces cyber risk by uncovering vulnerabilities and weaknesses in the enterprise cyber environment through coordinated ethical hacking and penetration testing scenarios. Perform penetration testing of APIs, web applications, networks, and cloud services, as well as re

Assessments & Exercises Vice President in Penetration Test. In this key role, you will enhance the firm's cybersecurity through hands-on penetration testing and risk assessment methodologies. Ideal candidates are eager learners with strong communication skills, and experience in manual penetration t

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

A leading digital bank in Manchester is seeking an experienced Penetration Tester to join their team. You will conduct mobile, web application, cloud, and infrastructure penetration tests while collaborating with engineering teams to enhance security practices.

A cybersecurity firm in Greater London seeks a Penetration Tester to plan and conduct ethical hacking exercises and identify vulnerabilities in systems.

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

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

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.

As an experienced Penetration Tester at Starling, you’ll be joining an established team, working with talented cyber security professionals to ensure our services are designed, developed and operated securely. Being an internal tester, you’ll gain a strong understanding of how technology works a

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

A leading financial technology company in Manchester is seeking an experienced Penetration Tester to conduct assessments on its core banking platform. The role focuses on Cloud and Application Security, requiring strong skills in penetration testing and communication.

Your roleBeing certified as a CHECK Team Member (CTM) is a prerequisite to joining our CTAS team as a penetration tester. 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. As a member of this team, you’ll

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.

Develop and share knowledge with the rest of the penetration testing team. 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.

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. Deliver high‑quality penetration testing and consultancy services as well as a full range of security assessments (including specialist areas and IT Health

LSEG is seeking a senior penetration tester to join our internal offensive security team. Conduct in‑depth penetration tests on applications, infrastructure, and cloud environments. Take full ownership of assigned penetration testing engagements end‑to‑end and deliver with limited oversight.

The successful candidate will identify and remediate application-layer vulnerabilities and conduct penetration tests while advising development teams on secure coding practices. This role requires strong experience in software engineering or security operations with demonstrated expertise in secure

La Fosse, a leading quantitative investment management firm in Greater London, seeks a Penetration Tester for its Security Assurance team. This senior role involves owning internal penetration testing, identifying security risks across infrastructure and applications, and enhancing the firm's advers

Pen Test Partners LLP is seeking an enthusiastic security consultant to join their team in the UK.This role includes delivering pen testing services for various clients, from presales to delivery and debriefs.Applicants should have a minimum of two years' experience in pen testing and be familiar wi

Security testing professionals, including penetration testers and security analysts, are responsible for identifying, analyzing, and mitigating vulnerabilities in software, systems, and networks.

Paragon are working with a systematic hedge fund, looking for an experienced Penetration Tester to join their internal security team. Scope: performing hands‑on penetration testing, running adversary simulations, and helping engineers understand how attackers actually think. Strong penetration tes

As an experienced Penetration Tester at Starling, you’ll be joining an established team, working with talented cyber security professionals to ensure our services are designed, developed and operated securely. Second stage with additional members of the Penetration Testing team. Being an internal