26 to 50 of 489 Penetration Testing Jobs in the UK

April 2027 Inside IR35 - £544.83pd Umbrella Rate Do you own and run security validation platforms, such as breach and attack simulation, automated penetration testing or deception, and know how to turn the findings into fixed controls? We're recruiting a contract Cyber Security Technology … leading financial services organisation in London. The team runs the platforms that test and prove how well its controls work, including security validation, automated penetration testing, breach and attack simulation, threat emulation, exposure and vulnerability management and cyber deception, across on-premises, cloud and hybrid environments. This ...

support, and post-transaction cyber value creation. This role is ideally suited to a technically strong security professional with a background in red teaming, penetration testing or offensive security who wants to apply an attacker’s mindset in an advisory setting. This is not a red teaming role … privileged access, logging and detection) against known attacker tactics, techniques and procedures, mapped to MITRE ATT&CK. Interpreting and challenging the results of client penetration tests, red team exercises and vulnerability assessments, assessing scope, quality, remediation status and residual risk. Assessing detection and response maturity, including SOC capability, alerting ...

LSEG is seeking aSenior Penetration Tester to join our internal offensive security team. This role is hands‐on and deeply technical, responsible for planning and executing penetration tests across a wide range of systems and applications. The successful candidate will be a skilled offensive security professional with … passion for uncovering vulnerabilities and improving security posture through rigorous testing and collaboration. Key Responsibilities Conduct in-depth penetration tests on applications, infrastructure, and cloud environments. Take full ownership of assigned pentesting engagements end‐to‐end and deliver with limited oversight. Compile technical scoping documents, track and document ...

Principal Penetration Tester Location: Mainly remote, with occasional site visits (expenses paid) Duration: Initial 6-month contract, with a strong likelihood of extension IR35: Outside IR35 Role Overview We are seeking an experienced Principal Penetration Tester to lead and deliver complex penetration testing and security assessment … clients The successful candidate will provide hands-on technical expertise across infrastructure, cloud, applications, Kubernetes and hybrid environments, while also leading testing teams and mentoring junior consultants. Essential Requirements Cyber Scheme Team Leader (CSTL) or CREST Certified Tester (CCT) Principal UK Cyber Security Council Professional (PriCSP) Current Security Clearance ...

ensure they align with security, regulatory and business requirements. Conduct and support threat modelling, riskassessmentsand vulnerability assessments. Provide technical oversight and recommendations for security testing and penetration testing activities. Support vulnerability management activities, helping teams prioritise and remediate security risks. Collaborate with architects, engineers,testersand assurance teams … recommendations effectively. Essential Skills & Experience Significant experiencein one or more of the following areas: Security Architecture Security Engineering Cloud Security Network Security Application Security Penetration Testing Strong understanding of modern cyber threats, attacktechniquesand security risks. Experience applying secure-by-design principles across enterprise environments. Strong knowledge of cloud ...

align with security, regulatory and business requirements. Conduct and support threat modelling, risk assessments and vulnerability assessments. Provide technical oversight and recommendations for security testing and penetration testing activities. Support vulnerability management activities, helping teams prioritise and remediate security risks. Collaborate with architects, engineers, testers and assurance … effectively. Essential Skills & Experience Significant experience in one or more of the following areas: Security Architecture Security Engineering Cloud Security Network Security Application Security Penetration Testing Strong understanding of modern cyber threats, attack techniques and security risks. Experience applying secure-by-design principles across enterprise environments. Strong knowledge ...

Cyber Security Consultant - Security Testing & Assurance At Jacobs, we're challenging today to reinvent tomorrow by solving the world's most critical problems for thriving cities, resilient environments, mission-critical outcomes, operational advancement, scientific discovery and cutting-edge manufacturing, turning abstract ideas into realities that transform the world … vulnerabilities before adversaries can exploit them. You'll work across a diverse range of sectors, supporting clients with complex cyber security challenges through security testing, assurance and technical security assessment services. This is an opportunity to work alongside experienced cyber security specialists, engineers, architects and consultants, helping clients improve ...

technical solutions against security, regulatory and business requirements. Conduct and support threat modelling, risk assessments and vulnerability assessments . Provide technical oversight of security testing and penetration testing activities. Support vulnerability management and help teams prioritise and remediate security risks. Work closely with architects, engineers, testers … Looking For You'll have significant experience in one or more of the following: Security Architecture Security Engineering Cloud Security Network Security Application Security Penetration Testing You'll also have: Strong knowledge of modern cyber threats, attack techniques and security risks. Experience applying Secure by Design principles across ...

technical solutions against security, regulatory and business requirements. Conduct and support threat modelling, risk assessments and vulnerability assessments . Provide technical oversight of security testing and penetration testing activities. Support vulnerability management and help teams prioritise and remediate security risks. Work closely with architects, engineers, testers … Looking For You'll have significant experience in one or more of the following: Security Architecture Security Engineering Cloud Security Network Security Application Security Penetration Testing You'll also have: Strong knowledge of modern cyber threats, attack techniques and security risks. Experience applying Secure by Design principles across ...

with security, regulatory and business requirements. Conduct and support threat modelling, cyber risk assessments and vulnerability assessments. Provide technical oversight and recommendations for security testing and penetration testing activities. Support vulnerability management, helping teams prioritise and remediate security risks effectively. Collaborate with architects, engineers, testers and assurance … ideal candidate will bring significant experience in one or more technical cybersecurity disciplines, including: Security Architecture Security Engineering Cloud Security Network Security Application Security Penetration Testing Candidates should also demonstrate: A strong understanding of modern cyber threats, attack techniques and security risks. Experience applying secure-by-design principles ...

with security, regulatory and business requirements. Conduct and support threat modelling, cyber risk assessments and vulnerability assessments. Provide technical oversight and recommendations for security testing and penetration testing activities. Support vulnerability management, helping teams prioritise and remediate security risks effectively. Collaborate with architects, engineers, testers and assurance … ideal candidate will bring significant experience in one or more technical cybersecurity disciplines, including: Security Architecture Security Engineering Cloud Security Network Security Application Security Penetration Testing Candidates should also demonstrate: A strong understanding of modern cyber threats, attack techniques and security risks. Experience applying secure-by-design principles ...

vulnerabilities before adversaries can exploit them. You'll work across a diverse range of sectors, supporting clients with complex cyber security challenges through security testing, assurance and technical security assessment services.This is an opportunity to work alongside experienced cyber security specialists, engineers, architects and consultants, helping clients improve resilience … projects that protect essential services, critical assets and business operations while continuing to deepen your own technical expertise.Whether your experience has been gained through penetration testing, ethical hacking, security assurance, red teaming or broader cyber security disciplines, you'll be part of a collaborative community that values innovation ...

Senior/Lead Penetration Tester & Cyber Security Consultant Remote, United Kingdom We are currently recruiting for an experienced Senior/Lead Penetration Tester & Cyber Security Consultant to support security testing engagements across complex cloud, infrastructure and modern application environments. This is an exciting opportunity for a hands … security professional with strong technical expertise across penetration testing, cloud security and containerised environments, including AWS, Azure, Docker, Kubernetes and CI/CD pipelines. You’ll be responsible for delivering high-quality security assessments, identifying vulnerabilities across diverse technology stacks and providing practical recommendations to strengthen security. ...

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 ...

role in supporting: Secure software development practices across Colt Security integration into CI/CD pipelines (GitLab) Reduction of vulnerabilities through automated scanning and testing Assurance of internet-facing applications through structured penetration testing activities What you will do Provide security architecture expertise for application security … software development, aligned to Colt’s Secure by Design principles Support the integration of security controls into CI/CD pipelines (GitLab), including automated testing and policy enforcement Design and implement application security controls, including: Static Application Security Testing (SAST) Dynamic Application Security Testing (DAST) Software Composition ...

security weaknesses, assessing risk, and working with technical and operational teams to ensure timely remediation. The role will also support the coordination of operational penetration testing activities, ensuring testing is effectively scheduled, delivered, and tracked through to remediation. Working closely with risk and operational teams, the Vulnerability … security platforms, and threat intelligence sources. Analyse and triage vulnerabilities, prioritising remediation based on risk, exploitability, and business impact. Support the coordination of operational penetration testing activities, including scheduling, scoping, and tracking remediation of findings. Ensure penetration testing results are clearly documented, prioritised, and fed into ...

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 … operated securely. This is a collaborative role - you’ll directly interact with 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 ...

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 … operated securely. This is a collaborative role - you’ll directly interact with 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 ...

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 … operated securely. This is a collaborative role - you’ll directly interact with 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 ...

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 … operated securely. This is a collaborative role - you’ll directly interact with 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 ...

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 … operated securely. This is a collaborative role - you’ll directly interact with 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 ...

important digital property services. HM Land Registry (HMLR), in partnership with Inspire People, is seeking a Senior Infrastructure Specialist - Red Team with experience in penetration testing, adversary emulation, threat analysis, Infrastructure as Code, DevOps and security operations. This permanent opportunity offers a salary … controls and improve HMLR's security posture. As a Senior Infrastructure Specialist - Red Team, you will: * Conduct Red Team engagements, adversary emulation exercises and penetration testing activities * Simulate real-world cyber attacks to assess security controls, detection capabilities and response effectiveness * Identify vulnerabilities, attack paths and security weaknesses ...

technical owners IT Disaster Recovery and Resilience: Coordinate oversight and challenge of IT disaster recovery arrangements, working with Technology Teams to maintain plans, schedule testing, evidence outcomes, identify dependencies and track remediation of weaknesses. IT Change Management: Support effective IT change governance, including chairing or supporting the Good Energy … that technical owners complete agreed actions before implementation where required. PCI-DSS Compliance: Coordinate and support PCI-DSS control activity, evidence gathering, control testing and remediation tracking where technology controls are in scope. Penetration Testing and Vulnerability Management: Coordinate penetration testing and support vulnerability management ...

Engineer Job Description LSEG is seeking a Senior Vulnerability Management Engineer to join our internal offensive security team with focus on driving closure of penetration testing findings. This role bridges offensive security and engineering by translating penetration test results into clear, actionable remediation guidance and partnering with … application and platform teams to implement secure fixes. The successful candidate has a strong penetration testing or application security background, hands on remediation experience, and the ability to coordinate multiple collaborators to reduce risk at scale. This is a highly technical, delivery focused role with responsibility for both ...

This highly regarded Financial Services organisation is currently seeking a experienced penetration tester with people management experience. This is a key leadership role, taking ownership of offensive security strategy across a modern, cloud-first environment. You'll be leading Penetration Testing, red and purple team activity … working closely with engineering teams to embed security into product delivery. You will directly manage a small team of 3-4 penetration testers. The role requires a strong background in penetration testing, with experience gained from either a consultancy firm or in-house role. No particular certifications ...