6 of 6 Permanent Security Tester Jobs in England

Offensive Security Tester (Red Team) London/WFH to £70k Opportunity to progress your career as an Offensive Security Tester at a rapidly expanding scale-up software house that is developing a highly complex network cyber security platform; you'll be working on Greenfield projects, collaborating with and learning from a hugely talented team. Your … role: As an Offensive Security Tester you will manage client engagements, perform security tests and report findings; you'll be using industry standard combined with in-house developed tools as well as carrying out manual reviews to discover any issues with customer infrastructure and web applications. You'll be pro-active and will have the opportunity within … Russel Group or top tier world university - Computer Science, Engineering, Physics or Mathematics; MSc or PhD advantageous You're OSCP or CRT certified You have commercial experience with Offensive Security, Red Team testing or Penetration testing You have a keen interest in Cyber Security and understanding of key concepts and protocols You can code with any OO programming More ❯

Offensive Security Tester (Red Team) London/WFH to £70k Opportunity to progress your career as an Offensive Security Tester at a rapidly expanding scale-up software house that is developing a highly complex network cyber security platform; you'll be working on Greenfield projects, collaborating with and learning from a hugely talented team. Your … role: As an Offensive Security Tester you will manage client engagements, perform security tests and report findings; you'll be using industry standard combined with in-house developed tools as well as carrying out manual reviews to discover any issues with customer infrastructure and web applications. You'll be pro-active and will have the opportunity within … Russel Group or top tier world university - Computer Science, Engineering, Physics or Mathematics; MSc or PhD advantageous You're OSCP or CRT certified You have commercial experience with Offensive Security, Red Team testing or Penetration testing You have a keen interest in Cyber Security and understanding of key concepts and protocols You can code with any OO programming More ❯

Join a rapidly expanding scale-up where you'll work on cutting-edge Greenfield cyber security projects alongside a hugely talented team.* *Offensive Security Tester (Red Team) London/WFH to £70k* Opportunity to progress your career as an Offensive Security Tester at a rapidly expanding scale-up software house that is developing a highly … complex network cyber security platform; you'll be working on Greenfield projects, collaborating with and learning from a hugely talented team. *Your role:* As an Offensive Security Tester you will manage client engagements, perform security tests and report findings; you'll be using industry standard combined with in-house developed tools as well as carrying out … You have a strong educational background in Computer Science, Engineering, Physics or Mathematics; MSc or PhD advantageous * You're OSCP or CRT certified * You have commercial experience with Offensive Security, Red Team testing or Penetration testing * You have a keen interest in Cyber Security and understanding of key concepts and protocols * You can code with any OO programming More ❯

Security Tester – Contract (SC Cleared | Hybrid Leeds | Inside IR35) Up to £375 per day (Inside IR35) Hybrid – two days per week on site in West Yorkshire Initial contract until August 2026 Active SC clearance required Overview We are seeking an experienced Security Tester to join an established testing team working on large scale, secure systems within … the public sector. The role focuses on manual security testing, vulnerability management, and cyber resilience, supporting ongoing work around identity and access management and data protection. This is a hands on position where you will identify risks, validate security controls, and help deliver robust and resilient solutions. You will work closely with technical teams and contribute to improving … the organisation's overall security posture. Key Responsibilities Identify and report security gaps across systems, applications and processes Develop and execute comprehensive cyber security test strategies Perform manual testing of systems, APIs and applications Conduct vulnerability scanning, prioritisation and remediation validation Validate multi factor authentication and related mechanisms including OAuth, SAML and JWT Support disaster recovery and More ❯

Up to £375 per day (Inside IR35) Hybrid - two days per week on site in West Yorkshire Initial contract until August 2026 Security Tester - Contract (SC Cleared | Hybrid Leeds | Inside IR35) Up to £375 per day (Inside IR35) Hybrid - two days per week on site in West Yorkshire Initial contract until August 2026 Active SC clearance required Overview … We are seeking an experienced Security Tester to join an established testing team working on large scale, secure systems within the public sector. The role focuses on manual security testing, vulnerability management, and cyber resilience, supporting ongoing work around identity and access management and data protection. This is a hands on position where you will identify risks … validate security controls, and help deliver robust and resilient solutions. You will work closely with technical teams and contribute to improving the organisation's overall security posture. Key Responsibilities Identify and report security gaps across systems, applications and processes Develop and execute comprehensive cyber security test strategies Perform manual testing of systems, APIs and applications Conduct More ❯

Cyber Security Consultant (Penetration Tester) Milton Keynes, Buckinghamshire, United Kingdom We are seeking an experienced Cyber Security Consultant (Penetration Tester) . Make an Impact at RSM UK At RSM, our consulting team brings together diverse advisory experts to deliver our six core solutions: business transformation, forensic, deal services, restructuring, finance function support, and risk and governance. … our six solutions, expanding our team of expert consultants, embracing a digital-first approach, strengthening our global presence, and building strong client relationships. We are seeking an enthusiastic Cyber Security Consultant to join our team. Working alongside our experienced team of specialists, you'll deliver offensive security services including digital footprint reconnaissance, social engineering, penetration testing, vulnerability assessments … and more to high-profile clients across all industries. The purpose of this role is to deliver offensive security services such as digital footprint reconnaissance, social engineering, vulnerability assessments, penetration testing, threat modeling, cyber-attack simulation exercises, and more. You'll benefit from ongoing coaching, career mentoring, and support through our career pathway. You will have opportunities to develop More ❯