25 of 25 Permanent Penetration Testing Jobs in the East of England

Penetration Tester

Hiring Organisation
Ultima
Location
Ipswich, Suffolk, UK
Employment Type
Full-time
Penetration Tester Are you an ambitious cybersecurity professional with a passion for uncovering vulnerabilities and strengthening digital defences? Join Ultima's Security Testing Practice as a Penetration Tester and play a key role in protecting our clients' critical systems. Working alongside experienced consultants, you'll deliver high … quality penetration testing engagements, contribute to continuous improvement, and grow your expertise in a collaborative, knowledge-sharing environment. What you'll be doing Sharpen Your Skills, Strengthen Our Security Maintain your penetration testing qualifications and continue developing your technical expertise in line with business and client ...

Penetration Tester

Hiring Organisation
Ultima
Location
Peterborough, Cambridgeshire, UK
Employment Type
Full-time
Penetration Tester Are you an ambitious cybersecurity professional with a passion for uncovering vulnerabilities and strengthening digital defences? Join Ultima's Security Testing Practice as a Penetration Tester and play a key role in protecting our clients' critical systems. Working alongside experienced consultants, you'll deliver high … quality penetration testing engagements, contribute to continuous improvement, and grow your expertise in a collaborative, knowledge-sharing environment. What you'll be doing Sharpen Your Skills, Strengthen Our Security Maintain your penetration testing qualifications and continue developing your technical expertise in line with business and client ...

Penetration Tester

Hiring Organisation
Ultima
Location
Hemel Hempstead, Hertfordshire, UK
Employment Type
Full-time
Penetration Tester Are you an ambitious cybersecurity professional with a passion for uncovering vulnerabilities and strengthening digital defences? Join Ultima's Security Testing Practice as a Penetration Tester and play a key role in protecting our clients' critical systems. Working alongside experienced consultants, you'll deliver high … quality penetration testing engagements, contribute to continuous improvement, and grow your expertise in a collaborative, knowledge-sharing environment. What you'll be doing Sharpen Your Skills, Strengthen Our Security Maintain your penetration testing qualifications and continue developing your technical expertise in line with business and client ...

Senior Security Consultant (AI/ML Penetration Tester)

Hiring Organisation
NetSPI
Location
Chelmsford, Essex, UK
Employment Type
Full-time
This is a remote position, and candidates must be located in Ontario, CA NetSPI pioneered Penetration Testing as a Service (PTaaS) and leads the industry in modern pentesting. Combining world-class security professionals with AI and automation, NetSPI delivers clarity, speed, and scale across 50+ pentest types, attack … surface management, and vulnerability prioritization. The NetSPI platform streamlines workflows and accelerates remediation, enabling our experts to focus on deep dive testing that uncovers vulnerabilities others miss. Trusted by the top 10 U.S. banks and Fortune 500 companies worldwide, NetSPI has been driving security innovation since 2001. NetSPI ...

Senior Security Consultant (AI/ML Penetration Tester)

Hiring Organisation
NetSPI
Location
Peterborough, Cambridgeshire, UK
Employment Type
Full-time
This is a remote position, and candidates must be located in Ontario, CA NetSPI pioneered Penetration Testing as a Service (PTaaS) and leads the industry in modern pentesting. Combining world-class security professionals with AI and automation, NetSPI delivers clarity, speed, and scale across 50+ pentest types, attack … surface management, and vulnerability prioritization. The NetSPI platform streamlines workflows and accelerates remediation, enabling our experts to focus on deep dive testing that uncovers vulnerabilities others miss. Trusted by the top 10 U.S. banks and Fortune 500 companies worldwide, NetSPI has been driving security innovation since 2001. NetSPI ...

Senior Security Consultant (AI/ML Penetration Tester)

Hiring Organisation
NetSPI
Location
Cambridge, Cambridgeshire, UK
Employment Type
Full-time
This is a remote position, and candidates must be located in Ontario, CA NetSPI pioneered Penetration Testing as a Service (PTaaS) and leads the industry in modern pentesting. Combining world-class security professionals with AI and automation, NetSPI delivers clarity, speed, and scale across 50+ pentest types, attack … surface management, and vulnerability prioritization. The NetSPI platform streamlines workflows and accelerates remediation, enabling our experts to focus on deep dive testing that uncovers vulnerabilities others miss. Trusted by the top 10 U.S. banks and Fortune 500 companies worldwide, NetSPI has been driving security innovation since 2001. NetSPI ...

Senior Penetration Tester

Hiring Organisation
National Gas
Location
Basildon, Essex, UK
Employment Type
Full-time
strengthen the resilience and security of gas transmission nationwide. Join us, and help be the energy behind the change. Key accountabilities: Scope and perform penetration testing and vulnerability research of complex proprietary software and hardware. Identify and assess vulnerabilities in systems and applications. Keep cybersecurity training and knowledge … current by monitoring the latest security threats and vulnerabilities. Write clear and concise penetration testing reports detailing findings and recommendations Provide recommendations for remediation of identified vulnerabilities. Collaborate with IT and development teams to facilitate the implementation of security measures and remediation of identified vulnerabilities. Ensure that penetration ...

Senior Penetration Tester

Hiring Organisation
National Gas
Location
Peterborough, Cambridgeshire, UK
Employment Type
Full-time
strengthen the resilience and security of gas transmission nationwide. Join us, and help be the energy behind the change. Key accountabilities: Scope and perform penetration testing and vulnerability research of complex proprietary software and hardware. Identify and assess vulnerabilities in systems and applications. Keep cybersecurity training and knowledge … current by monitoring the latest security threats and vulnerabilities. Write clear and concise penetration testing reports detailing findings and recommendations Provide recommendations for remediation of identified vulnerabilities. Collaborate with IT and development teams to facilitate the implementation of security measures and remediation of identified vulnerabilities. Ensure that penetration ...

Senior Penetration Tester

Hiring Organisation
National Gas
Location
Hemel Hempstead, Hertfordshire, UK
Employment Type
Full-time
strengthen the resilience and security of gas transmission nationwide. Join us, and help be the energy behind the change. Key accountabilities: Scope and perform penetration testing and vulnerability research of complex proprietary software and hardware. Identify and assess vulnerabilities in systems and applications. Keep cybersecurity training and knowledge … current by monitoring the latest security threats and vulnerabilities. Write clear and concise penetration testing reports detailing findings and recommendations Provide recommendations for remediation of identified vulnerabilities. Collaborate with IT and development teams to facilitate the implementation of security measures and remediation of identified vulnerabilities. Ensure that penetration ...

Senior Application Security Specialist

Hiring Organisation
hackajob
Location
Luton, Bedfordshire, UK
Employment Type
Full-time
customers worldwide. Job Description As a Senior Application Security Specialist, you will focus on securing our applications through development lifecycle controls and penetration testing to assess the effectiveness of security measures. The Information Security department is responsible for the security and risk management of closed source, open source … This role is eligible for inclusion in the Company's hybrid working from home policy. Qualifications Exceptional understanding and practical experience with manual security testing to find vulnerabilities and logical issues, in either web applications or infrastructure. Strong understanding of and demonstrable experience with automated, dynamic, and static application ...

Senior Application Security Specialist

Hiring Organisation
hackajob
Location
Stevenage, Hertfordshire, UK
Employment Type
Full-time
customers worldwide. Job Description As a Senior Application Security Specialist, you will focus on securing our applications through development lifecycle controls and penetration testing to assess the effectiveness of security measures. The Information Security department is responsible for the security and risk management of closed source, open source … This role is eligible for inclusion in the Company's hybrid working from home policy. Qualifications Exceptional understanding and practical experience with manual security testing to find vulnerabilities and logical issues, in either web applications or infrastructure. Strong understanding of and demonstrable experience with automated, dynamic, and static application ...

Senior Application Security Specialist

Hiring Organisation
hackajob
Location
Cambridge, Cambridgeshire, UK
Employment Type
Full-time
customers worldwide. Job Description As a Senior Application Security Specialist, you will focus on securing our applications through development lifecycle controls and penetration testing to assess the effectiveness of security measures. The Information Security department is responsible for the security and risk management of closed source, open source … This role is eligible for inclusion in the Company's hybrid working from home policy. Qualifications Exceptional understanding and practical experience with manual security testing to find vulnerabilities and logical issues, in either web applications or infrastructure. Strong understanding of and demonstrable experience with automated, dynamic, and static application ...

Senior Application Security Specialist

Hiring Organisation
hackajob
Location
Chelmsford, Essex, UK
Employment Type
Full-time
customers worldwide. Job Description As a Senior Application Security Specialist, you will focus on securing our applications through development lifecycle controls and penetration testing to assess the effectiveness of security measures. The Information Security department is responsible for the security and risk management of closed source, open source … This role is eligible for inclusion in the Company's hybrid working from home policy. Qualifications Exceptional understanding and practical experience with manual security testing to find vulnerabilities and logical issues, in either web applications or infrastructure. Strong understanding of and demonstrable experience with automated, dynamic, and static application ...

Staff Application Security Engineer

Hiring Organisation
Ivanti
Location
Bedford, Bedfordshire, UK
Employment Type
Full-time
processes, and solutions to proactively detect, remediate, and mitigate vulnerabilities across large and complex codebases. Design secure architectures, perform comprehensive threat modeling, and lead penetration testing and code reviews on both web and mobile applications to maintain the highest levels of security. Partner with development, operations, and architecture … common and advanced security vulnerabilities, exploitation techniques, and practical remediation strategies. Proven expertise in applied cryptography, threat modeling, vulnerability assessment (including CVSS scoring and penetration testing), as well as secure software development practices across SSDLC and CI/CD pipelines. Experience implementing and maintaining security tools and processes ...

Staff Application Security Engineer

Hiring Organisation
Ivanti
Location
Luton, Bedfordshire, UK
Employment Type
Full-time
processes, and solutions to proactively detect, remediate, and mitigate vulnerabilities across large and complex codebases. Design secure architectures, perform comprehensive threat modeling, and lead penetration testing and code reviews on both web and mobile applications to maintain the highest levels of security. Partner with development, operations, and architecture … common and advanced security vulnerabilities, exploitation techniques, and practical remediation strategies. Proven expertise in applied cryptography, threat modeling, vulnerability assessment (including CVSS scoring and penetration testing), as well as secure software development practices across SSDLC and CI/CD pipelines. Experience implementing and maintaining security tools and processes ...

Staff Application Security Engineer

Hiring Organisation
Ivanti
Location
Chelmsford, Essex, UK
Employment Type
Full-time
processes, and solutions to proactively detect, remediate, and mitigate vulnerabilities across large and complex codebases. Design secure architectures, perform comprehensive threat modeling, and lead penetration testing and code reviews on both web and mobile applications to maintain the highest levels of security. Partner with development, operations, and architecture … common and advanced security vulnerabilities, exploitation techniques, and practical remediation strategies. Proven expertise in applied cryptography, threat modeling, vulnerability assessment (including CVSS scoring and penetration testing), as well as secure software development practices across SSDLC and CI/CD pipelines. Experience implementing and maintaining security tools and processes ...

Security Architect

Hiring Organisation
SoftServe
Location
Watford, Hertfordshire, UK
Employment Type
Full-time
protection of data and systems Implement proactive security monitoring, incident response, and resilience strategies, protecting infrastructure from potential threats and attacks Conduct security assessments, penetration testing, and continuous compliance validation across cloud and hybrid environments Support security reviews and presentations with government bodies and independent security assessors ...

Security Architect

Hiring Organisation
SoftServe
Location
Ipswich, Suffolk, UK
Employment Type
Full-time
protection of data and systems Implement proactive security monitoring, incident response, and resilience strategies, protecting infrastructure from potential threats and attacks Conduct security assessments, penetration testing, and continuous compliance validation across cloud and hybrid environments Support security reviews and presentations with government bodies and independent security assessors ...

Security Architect

Hiring Organisation
SoftServe
Location
Norwich, Norfolk, UK
Employment Type
Full-time
protection of data and systems Implement proactive security monitoring, incident response, and resilience strategies, protecting infrastructure from potential threats and attacks Conduct security assessments, penetration testing, and continuous compliance validation across cloud and hybrid environments Support security reviews and presentations with government bodies and independent security assessors ...

Information Security Engineer Expert

Hiring Organisation
Keysight Technologies
Location
Basildon, Essex, UK
Employment Type
Full-time
Compliance team and will have a key role in the end-to-end development of enterprise security solutions, from whiteboard conception and design to testing, deployment, and overseeing the handoff to operations. Collaboration on projects with the rest of the security team and engagement with engineers from other departments ...

Information Security Engineer Expert

Hiring Organisation
Keysight Technologies
Location
Colchester, Essex, UK
Employment Type
Full-time
Compliance team and will have a key role in the end-to-end development of enterprise security solutions, from whiteboard conception and design to testing, deployment, and overseeing the handoff to operations. Collaboration on projects with the rest of the security team and engagement with engineers from other departments ...

Information Security Engineer Expert

Hiring Organisation
Keysight Technologies
Location
Cambridge, Cambridgeshire, UK
Employment Type
Full-time
Compliance team and will have a key role in the end-to-end development of enterprise security solutions, from whiteboard conception and design to testing, deployment, and overseeing the handoff to operations. Collaboration on projects with the rest of the security team and engagement with engineers from other departments ...

Product Cyber Security - Undergraduate Placement 2026

Hiring Organisation
MBDA
Location
Stevenage, Hertfordshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
opportunity to work in a lab-based environment. There will also be further opportunities to develop practical cyber security skills such as "pen testing", "capability and vulnerability analysis" in the new cyber lab. Other things that this role can provide is an opportunity to engage with stakeholders, engineering teams ...

CHECK Pen Tester , CSTM

Hiring Organisation
BreachLock, Inc
Location
Peterborough, Cambridgeshire, UK
Employment Type
Full-time
CHECK-Certified Penetration Tester – UK (Remote) | BreachLock BreachLock is a global leader in Continuous Attack Surface Discovery and Penetration Testing. Our AI-enhanced PTaaS and Adversarial Exposure Validation platforms deliver evidence-based risk insights for enterprises worldwide. We are expanding our UK offensive security team and hiring … CHECK-certified Penetration Tester to support our growing portfolio of government and enterprise clients. Eligibility Requirement (Important) You must already have the legal right to work in the United Kingdom and be physically residing in the UK. BreachLock cannot provide visa sponsorship for this role. What ...

CHECK Pen Tester , CSTM

Hiring Organisation
BreachLock, Inc
Location
Stevenage, Hertfordshire, UK
Employment Type
Full-time
CHECK-Certified Penetration Tester – UK (Remote) | BreachLock BreachLock is a global leader in Continuous Attack Surface Discovery and Penetration Testing. Our AI-enhanced PTaaS and Adversarial Exposure Validation platforms deliver evidence-based risk insights for enterprises worldwide. We are expanding our UK offensive security team and hiring … CHECK-certified Penetration Tester to support our growing portfolio of government and enterprise clients. Eligibility Requirement (Important) You must already have the legal right to work in the United Kingdom and be physically residing in the UK. BreachLock cannot provide visa sponsorship for this role. What ...