351 to 363 of 363 Penetration Testing Jobs in the UK

Penetration Tester - Infrastructure/OT (Consultancy | Mostly Remote | Not for Beginners) Right. Let’s skip the fluff. One of our consultancy clients needs an experienced Infrastructure Pen Tester. Not someone who wants to be a Pen Tester. Not someone halfway through their OSCP. Someone who's been there, and got some of the battle scars already. They work with … sort of environments where “turning it off and on again” could cost millions. So yeah, it’s not your average test. The Job (in plain English): You’ll be testing infrastructure - manually. No Web App fluff, no clicking “scan” in a tool and writing up the results. You’ll be dealing with proper kit and real-world impact. A … lot of autonomy, and the expectation that you can figure things out without someone holding your hand. What You Actually Need: Hands-on experience with infrastructure pen testing - and we mean proper hands-on. Experience in OT environments - You’ve been there, done that, ideally not blown anything up. Brains - Able to look at a scope, figure it out More ❯

Penetration Tester - Infrastructure/OT (Consultancy | Mostly Remote | Not for Beginners) Right. Let’s skip the fluff. One of our consultancy clients needs an experienced Infrastructure Pen Tester. Not someone who wants to be a Pen Tester. Not someone halfway through their OSCP. Someone who's been there, and got some of the battle scars already. They work with … sort of environments where “turning it off and on again” could cost millions. So yeah, it’s not your average test. The Job (in plain English): You’ll be testing infrastructure - manually. No Web App fluff, no clicking “scan” in a tool and writing up the results. You’ll be dealing with proper kit and real-world impact. A … lot of autonomy, and the expectation that you can figure things out without someone holding your hand. What You Actually Need: Hands-on experience with infrastructure pen testing - and we mean proper hands-on. Experience in OT environments - You’ve been there, done that, ideally not blown anything up. Brains - Able to look at a scope, figure it out More ❯

We have over 450 highly talented and supportive colleagues (and counting) across a number of regional offices in the UK, Benelux & Ireland. The Role: We are looking for a penetration tester with hands-on experience to join our growing team. This role is perfect for a penetration tester who is keen to lead testing engagements for a … range of interesting clients. Key responsibilities include: Leading and delivering CREST-accredited penetration testing engagements. Providing high-quality reporting and communicating findings to clients. Conducting security research and creating technical content. Assisting with the continuous development of the penetration testing processes and methodologies. Mentoring other team members. ‏‏‎ ‎ ‏‏‎ ‎ Who We're Looking For: The following skills and … experience are essential for the role: At least 1 year of professional penetration testing experience covering one or more of the following domains: external network, internal network, web application, mobile application testing, red teaming and social engineering. Holding at least an OSCP, CREST CRT or equivalent certification. Strong technical ability and attention to detail. Excellent written and More ❯

Current Salary Expected Pay Rate Nationality/Visa Status Willing to work in London (Yes/No) Job Role and Responsibilities Handle HMG-PSN code of connection compliance Coordinate penetration testing and remediate outcomes Manage x-krypton link Support PSN audits Manage HMG key material Maintain access records Required Skills Knowledge of physical servers and VMware virtualization Knowledge More ❯

large investment firm building its own LLMs is looking to establish an AI Red Team to identify vulnerabilities, biases, and safety concerns in their models. You will work on testing the security and robustness of these systems, as well as assessing their potential to cause harm to humans. Ideal candidates may come from a traditional Pen Testing background More ❯

occasional trips to the London Office. This role has been determined outside IR35. Key Skills Required: Reverse Engineering of Android Apps Knowledge of Android Platform and Security mechanisms Pen Testing and Vulnerability Assessment Track recording of working in a high-achieving team This client is looking to review CV's and interview in the next week so if you More ❯

occasional trips to the London Office. This role has been determined outside IR35. Key Skills Required: Reverse Engineering of Android Apps Knowledge of Android Platform and Security mechanisms Pen Testing and Vulnerability Assessment Track recording of working in a high-achieving team This client is looking to review CV's and interview in the next week so if you More ❯

occasional trips to the London Office. This role has been determined outside IR35. Key Skills Required: Reverse Engineering of Android Apps Knowledge of Android Platform and Security mechanisms Pen Testing and Vulnerability Assessment Track recording of working in a high-achieving team This client is looking to review CV's and interview in the next week so if you More ❯

tools such as RabbitMQ, LDAP, and Keycloak. Apply Infrastructure as Code practices. Support developer platforms like GitLab, SonarQube, and Nexus. Handle IT security tasks like CNAPP, patch management, and penetration testing. Provide support and participate in on-call duties during rollouts. Requirements: Degree in computer science, mathematics, econometrics, or equivalent experience. Solid skills in Kubernetes, Infrastructure as Code, and More ❯

Penetration Tester – Android | £600–£625 p/d | Outside IR35 | London | 6 Months+ SR2 are supporting a major global tech client in scaling their elite application security team. They're hiring two Penetration Testers with deep Android mobile expertise to uncover security flaws, reverse engineer complex APKs, and assess high-impact risks across mobile ecosystems. This isn’t … about basic bug hunting, this is targeted, forensic-level testing to identify vulnerabilities before they become exploits. The Role: Conduct in-depth penetration testing on Android applications Reverse engineer mobile apps to uncover security weaknesses Analyse malware risks, obfuscation layers, and potential exploit vectors Work alongside automation tools while delivering deep, human-led security insight Must-Have … Proven hands-on experience in Android penetration testing Strong background in reverse engineering APKs and analysing obfuscated code A security-first mindset with the ability to think like a sophisticated attacker Nice to Have: Experience working in large security consultancies or antivirus environments Exposure to large-scale mobile platforms, app stores, or critical systems vetting Details: Day Rate More ❯

Penetration Tester - Android | £600-£625 p/d | Outside IR35 | London | 6 months+ SR2 are supporting a major global tech client in scaling their elite application security team. They're hiring two Penetration Testers with deep Android mobile expertise to uncover security flaws, reverse engineer complex APKs, and assess high-impact risks across mobile ecosystems. This isn't … about basic bug hunting, this is targeted, forensic-level testing to identify vulnerabilities before they become exploits. The Role: Conduct in-depth penetration testing on Android applications Reverse engineer mobile apps to uncover security weaknesses Analyse malware risks, obfuscation layers, and potential exploit vectors Work alongside automation tools while delivering deep, human-led security insight Must-Have … Proven hands-on experience in Android penetration testing Strong background in reverse engineering APKs and analysing obfuscated code A security-first mindset with the ability to think like a sophisticated attacker Nice to Have: Experience working in large security consultancies or antivirus environments Exposure to large-scale mobile platforms, app stores, or critical systems vetting Details: Day Rate More ❯

red teaming. It provides organisations with real-time visibility into their attack surface and potential exploitable vulnerabilities. Simply put it's a product & company who red team/pen testing/ethical hacking for their clients. This role is split into two key parts equally (50/50): Firstly, you'll be dealing with the company's clients & managing … client side, you'll be the most senior technical individual representing the company so you'll need a strong background in security, ideally offensive security (red teaming/pen testing). You'll be liaising directly with Fortune500/Global Banks & Insurance companies (typically speaking to CISOs), understanding their problems, executing high impact presentations and gathering requirements. Secondly, on More ❯

team on a 3-month contract in Whiteley. We are looking for a candidate with a very good understanding of Security Risk Assessments (writing, endorsing and approving) and pen-testing activities (evaluating pen-test report... JBLK1_UKTJ More ❯