1 to 25 of 34 Penetration Tester Jobs in London

Penetration Tester DGH Recruitment are currently recruiting on behalf of a leading client in the Accountancy industry who require a Penetration Tester to join the firm in London. Key Responsibilities: Lead and support penetration testing engagements across web applications, APIs, and internal and external network … vendor hardening guidance. Produce clear, high-quality deliverables and present findings to technical and non-technical stakeholders. Required Skills: Professional experience delivering client-facing penetration tests across web applications, APIs, and internal or external network infrastructure, independently and/or as part of a team. Strong manual testing capability ...

Penetration Tester DGH Recruitment are currently recruiting on behalf of a leading client in the Accountancy industry who require a Penetration Tester to join the firm in London. Key Responsibilities: * Lead and support penetration testing engagements across web applications, APIs, and internal and external network … vendor hardening guidance. * Produce clear, high-quality deliverables and present findings to technical and non-technical stakeholders. Required Skills: * Professional experience delivering client-facing penetration tests across web applications, APIs, and internal or external network infrastructure, independently and/or as part of a team. * Strong manual testing capability ...

Penetration Tester Department: Cyber Employment Type: Permanent - Full Time Location: City, London Compensation: £50,000 - £58,000/year Description Moore Kingston Smith is seeking an experienced penetration tester to join our NCSC-recognised cyber security team within our Risk Advisory practice, supporting a diverse portfolio … clients across multiple sectors. This is a hands-on role focused on delivering penetration tests across web applications, APIs, and internal and external network infrastructure. You will also support Cyber Essentials Plus assessments and wider technical security reviews, including vulnerability assessments, configuration reviews against recognised benchmarks, and cloud security ...

ever changing and dynamic software world, Synergy Solutions International is now growing their team. Synergy Solutions Limited is now looking for a Penetration tester to join our growing team. We are hiring talented and motivated security consultants to join an exciting and diverse team, delivering a range … penetration testing. This is a senior position and requires prior penetration testing and consultancy experience. Penetration tester Apply for this position Skills Performing penetration tests on a variety of systems, to a high standard, against set deadlines, particularly in the Infrastructure and Applications space Experience ...

Lead Penetration Tester/CHECK Team Leader (CTL)Location: Bristol - Hybrid (2 days per week onsite)Salary: 80,000 - 100,000 per annum + Company BenefitsEmployment Type: PermanentThe OpportunityWe are looking for an experienced Lead Penetration Tester/CHECK Team Leader (CTL) to join a growing … Offensive Security team within a leading defence and cyber security environment.This is an exciting opportunity for a technically strong penetration testing professional to take ownership of complex security engagements across Defence, Government and Critical National Infrastructure.You'll be working on challenging, high-assurance environments, helping to identify vulnerabilities, strengthen ...

Title: Cyber Security Penetration Tester Locations: UK wide (hybrid work- 1x a month in office) Salary: Competitive salary and package (Depending on level of experience) Please Note:Any offer of employment is subject to satisfactory BPSS and SC security clearance which requires 5 years continuous UK address history … typically including no periods of 30 consecutive days or more spent outside of the UK) at the point of application. Role overview As a Penetration Tester, you will deliver hands-on security testing of client web applications, APIs and infrastructure. Working within a collaborative testing team, and supported ...

PENETRATION TESTER REMOTE (OCCASIONAL TRAVEL TO OFFICE IN BATTERSEA)OUTSIDE IR35 £500 TO £550 PER DAY DECEMBER STARTThis is an opportunity to join a growing in-house cyber security function that is continuing to expand its penetration testing capability across multiple business units. You'll take ownership … Europe and Asia, delivering high-quality testing and security assurance services. The Role and Deliverables Lead and deliver end-to-end infrastructure and network penetration testing engagements. Perform in-depth assessments of enterprise network architectures and identify security weaknesses beyond standard vulnerability scanning. Conduct security testing across network boundaries ...

Penetration Tester Programme - No Experience Required This is a self-funded career programme with a guaranteed job on completion or 100% of your course fees back Train. Certify. Get Hired. Are you looking to start a career in Penetration Testing but don't know where to begin ...

person. In Technology, we're asking that you attend the office a minimum of 1 day per week. About the Role 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 … multiple areas of the business to understand requirements, conduct research, perform security testing, and report issues aligned to our risk framework. Being an internal tester, you’ll gain a strong understanding of how technology works at Starling to enable in-depth testing. You’ll also support remediation processes, seeing ...

work that matters to you, you are in the right place. About the Role: Our Professional Services Team is seeking Associate Principal OT Penetration Tester who will provide technical leadership across vulnerability assessments, penetration testing, and adversary emulation activities supporting customer services engagements. You will shape engagement … Dragos within the broader OT security community.Responsibilities: Serve as primary technical lead and trusted advisor for Dragos’s most complex, high-impact industrial penetration testing, purple teaming, and vulnerability assessment engagements, shaping engagement direction and aligning deep technical execution with client business goals.Set the technical bar for OT penetration ...

every layer of operations, the UK-headquartered organization holds ISO 27001, PCI-DSS, and CREST certifications. This is a great opportunity for a Senior Penetration Tester to deliver hands-on testing across infrastructure, networks, web applications, and APIs for varied client environments. The ideal candidate will work … technically challenging engagements while contributing to a wider security operation, rather than simply delivering standalone penetration tests. Responsibilities Deliver infrastructure, network, web and API penetration tests. Identify and exploit vulnerabilities and realistic attack paths. Conduct manual testing alongside automated tooling. Produce clear, technically detailed client reports. Present findings ...

that supports how our engineering teams build and operate complex systems at scale. Take the next step in your career. Role As a Penetration Tester, you will lead and conduct penetration tests and vulnerability assessments across a wide range of internal systems and security controls. Your work … will directly strengthen our overall security posture through continuous testing, actionable insights and collaboration on remediation strategies. Responsibilities Perform in-depth penetration testing across a variety of technologies, including Kubernetes, Jenkins and Windows Domain Services. Deliver practical, impactful remediation advice to Control Owners based on identified vulnerabilities. Support business ...

consultancy firm in London is looking for a Senior Penetration Tester to join their team. The role involves performing high-standard penetration tests, managing and mentoring security consultants, and producing timely reports. Ideal candidates will have at least 3 years of experience in Information Security and Penetration ...

facilities and a golf/sports simulator. Discover more at http://www.javelincommodities.com/. The Role Javelin is looking for a Penetration Tester & AI Security Engineer to join our London Infrastructure team, responsible for identifying and validating security weaknesses across Javelin’s infrastructure, applications and emerging … capabilities. This is a new role that combines traditional penetration testing with AI security testing, secure AI development and the security assessment of new client-facing solutions. The individual will work closely with Infrastructure, development teams, business stakeholders and external security partners to identify vulnerabilities, demonstrate their potential impact ...

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 Red Teaming engagements. ...

team shaping the future of cybersecurity and technology. Salary: Up to £45,000 per annum. Travel: Hybrid Location: London We're hiring a passionate Penetration Tester eager to grow in offensive security. Join a skilled, diverse team committed to innovation and technical excellence. This is a great opportunity ...

Ethical Hacker/Penetration Tester no experience needed From £45,000 - £6 5,000 This is a self-funded career programme with a guaranteed job on completion or 100% of your course fees back Train. Certify. Get Hired. Are you looking to start a career in Cyber Security ...

Ethical Hacker/Penetration Tester – no experience needed From £45,000 - £6 5,000 *This is a self-funded career programme with a guaranteed job on completion or 100% of your course fees back* Train. Certify. Get Hired. Are you looking to start a career in Cyber Security ...

leading cybersecurity firm in London is seeking a passionate Penetration Tester to enhance their offensive security team. You will support cloud and infrastructure security assessments, write detailed reports for various stakeholders, and collaborate with a diverse team. Candidates must hold an OSCP certification and have knowledge ...

London Stock Exchange Group (LSEG) seeks a Senior Penetration Tester to join our internal offensive security team. This hands-on, highly technical role plans and executes penetration tests across systems and applications, uncovering vulnerabilities and raising security standards. You will own engagements end-to-end, write technical ...

Javelin Global Commodities in London seeks a Penetration Tester & AI Security Engineer to join the Infrastructure team. You will identify vulnerabilities across infrastructure, applications and AI-enabled solutions, and work with cross-functional teams to remediate and strengthen security controls. The role combines traditional penetration testing with ...

Moore Kingston Smith is seeking an experienced penetration tester to join our NCSC-recognised cyber security team within our Risk Advisory practice, supporting a diverse portfolio of clients across multiple sectors. This hands-on role focuses on delivering penetration tests across web apps, APIs, and network infrastructure ...

Hamilton Barnes is seeking a Senior Penetration Tester to perform hands-on testing across infrastructure, networks, web applications and APIs for varied client environments. The role emphasizes contributing to an offensive security function rather than sole test delivery. You will deliver tests, identify vulnerabilities, and produce detailed client ...

Javelin Group in London seeks a Penetration Tester & AI Security Engineer to join the Infrastructure team. You will identify security weaknesses across infrastructure, apps, networks and AI capabilities, and lead remediation efforts. The role blends traditional testing with secure AI development and client‐facing security reviews. The ideal ...

Research is seeking a hands-on Penetration Tester to lead tests and vulnerability assessments across internal systems and security controls. Your work will strengthen our security posture through continuous testing and remediation collaboration. You will perform tests across Kubernetes, Jenkins and Windows Domain Services, deliver remediation guidance, mentor ...