26 to 41 of 41 Security Tester Jobs

Citation Cyber is seeking a Security Consultant to join our penetration testing team on a hybrid UK basis. You will deliver a range of technical security assessments across client environments, identifying vulnerabilities and strengthening cyber resilience. The role requires practical experience in infrastructure and web app pentesting, strong ...

NetSPI Inc. is seeking a Security Consultant II to perform web application penetration testing and identify vulnerabilities in client environments across APIs and apps. You will create actionable reports, collaborate with clients to improve security posture, and stay current with industry best practices. This role requires strong communication ...

Citation Cyber is a leading UK cyber security consultancy delivering penetration testing, certification, consultancy and managed services. This role sits in a hybrid UK setup, with opportunities to advance CHECK status, CTM and senior technical positions. You will deliver assessments across client environments, report findings clearly and support remediation. ...

Dionach by Nomios in the UK is seeking an experienced penetration tester to conduct tests across web apps, APIs, Cloud, and networks, delivering detailed findings and remediation guidance. The role requires at least two years in pentesting, certifications such as CREST/OSCP, and the ability to communicate technical ...

Cyberfort Group is seeking an experienced Cyber Security Controls Tester to support a large-scale assurance programme in a highly regulated environment. You will work remotely with security architects, risk teams and stakeholders to assure control design, implementation and operation, ensuring alignment with standards such ...

Thames Water is seeking a Security Penetration Tester to support the design, implementation and maintenance of TVM solutions across the IT estate. You will collaborate with Digital teams to mitigate vulnerabilities and ensure remediation is aligned with business needs. You will conduct network and application testing, produce detailed ...

Consulting is seeking an X-Force Red Penetration Tester to assess enterprise security, breach defenses, and design countermeasures. You’ll analyze systems, perform tests on networks, and report findings to leadership. The role emphasizes collaboration across teams and delivering actionable recommendations. You will work within IBM Consulting … security engagements, applying your mathematical and coding background to improve client security postures and support a hybrid cloud and security #J-18808-Ljbffr ...

Tata Technologies Europe Ltd is looking for a Cyber Security Penetration Test Engineer to join our team at a client's office in Gaydon, Warwickshire. This full-time role requires hands-on security testing, vulnerability assessment and reporting to help strengthen the client's security posture. Based … Warwick, the engineer will collaborate with the client's security teams and Tata's delivery staff to plan, execute and document penetration tests and remediation recommendations. #J-18808-Ljbffr ...

Starling Bank Limited is seeking an experienced Penetration Tester to join our security team in a hybrid role. You will conduct tests across mobile, web, cloud, and infrastructure, partner with engineering to secure development, and help remediation efforts to lift overall security posture. You will mentor colleagues ...

Starling Bank Limited is seeking an experienced Penetration Tester to join our security team in a hybrid role. You will conduct tests across mobile, web, cloud, and infrastructure, partner with engineering to secure development, and help remediation efforts to lift overall security posture. You will mentor colleagues ...

Starling Bank Limited is seeking an experienced Penetration Tester to join our security team in a hybrid role. You will conduct tests across mobile, web, cloud, and infrastructure, partner with engineering to secure development, and help remediation efforts to lift overall security posture. You will mentor colleagues ...

Starling Bank Limited is seeking an experienced Penetration Tester to join our security team in a hybrid role. You will conduct tests across mobile, web, cloud, and infrastructure, partner with engineering to secure development, and help remediation efforts to lift overall security posture. You will mentor colleagues ...

leading software security firm in Belfast is seeking a Senior Penetration Tester to join their team. In this hands-on role, you'll engage in delivering high-quality penetration testing across various sectors, identify and remediate security weaknesses, and mentor junior testers. Essential skills include current security ...

Citi in London and Belfast is seeking an experienced AI Offensive Security Analyst to join the Offensive Security and Vulnerability Management (OSVM) team. You will test AI applications, perform penetration tests, and help build AI-powered security tooling for scalable defense. You’ll work across web apps … APIs, and AI agents, triaging findings, reporting risk clearly, and integrating security into development with a focus on real-world enterprise deployments. #J-18808-Ljbffr ...

Morson Human Resources Limited in the United Kingdom is seeking a Lead Penetration Tester to own the end-to-end penetration testing lifecycle across applications, infrastructure and technology environments. This hands-on role combines technical testing with coordination of testing engagements, third-party providers and remediation work. You will … manage scoping, execution, reporting and remediation, align activities with security standards (OWASP, NIST, ISO 27001, PCI-DSS, GDPR), and communicate #J-18808-Ljbffr ...

Morson Human Resources Limited in the United Kingdom is seeking a Lead Penetration Tester to own the end-to-end penetration testing lifecycle across applications, infrastructure and technology environments. This hands-on role combines technical testing with coordination of testing engagements, third-party providers and remediation work. You will … manage scoping, execution, reporting and remediation, align activities with security standards (OWASP, NIST, ISO 27001, PCI-DSS, GDPR), and communicate #J-18808-Ljbffr ...