1 to 25 of 51 Permanent Penetration Tester Jobs in the South East

Penetration Tester CTM Level - Wokingham, UK Key Points Up to £470 per day, 7-month contract Hybrid model, 3 days onsite and 2 remote Seeking a Penetration Tester at CTM level with strong consultancy skills Active SC Clearance required About the Client Our client … range of technical services that help strengthen critical digital operations. With growing demand across their security programmes, they are now searching for an experienced Penetration Tester to join their established team. The Benefits Exposure to varied testing engagements Collaborative and supportive technical environment Opportunity to deliver high impact ...

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 needs. ...

Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We're looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You'll conduct … network, web, and application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools ...

Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We're looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You'll conduct … network, web, and application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools ...

Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We're looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You'll conduct … network, web, and application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools ...

Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We're looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You'll conduct … network, web, and application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools ...

Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We're looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You'll conduct … network, web, and application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools ...

Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We're looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You'll conduct … network, web, and application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools ...

Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We're looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You'll conduct … network, web, and application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools ...

Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We're looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You'll conduct … network, web, and application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools ...

Penetration Tester Permanent – up to £85k per annum London based – hybrid working – 2-3 days office based (negotiable) Must have CREST CRT Role Overview: We are seeking a highly skilled and experienced Offensive Security Consultant with a strong focus understanding on threat intelligence and attack methods. The ideal … candidate will be responsible for managing and conducting advanced penetration testing engagements, leveraging threat intelligence to simulate real-world attacks across a variety of environments, including OT, IT, web applications, cloud infrastructure, and APIs. This role requires a deep understanding of adversarial approaches, excellent communication skills, and the ability ...

Penetration Tester £55,000 - 65,000 GBP Hybrid WORKING Location: Central London, Greater London - United Kingdom Type: Permanent Role: Pen Tester Location: London Salary: 55K - 65K Working Pattern: Hybrid The Opportunity: We are looking for an experienced Pen Tester to join a global Cyber Technical Services … will be responsible for delivering comprehensive security testing engagements, applying your expertise to safeguard vital systems. What You Will Do as a Pen Tester: Lead end-to-end security testing projects including scoping, execution, and reporting Conduct application, infrastructure, and intelligence-led tests to identify vulnerabilities Produce clear technical ...

Hiring: Senior Penetration Tester (CHECK/CREST) – Fully Remote (GB based) Salary: Up to £70k based on experience | Travel: Client sites when needed | Clearance: Must be eligible for SC Cyber Guarded Ltd is expanding! We're a long-established, independent cyber security company and the leading NCSC CHECK … provider in Northern Ireland now growing across the UK. We're looking for an experienced Penetration Tester (not entry level) to deliver high-assurance testing across infrastructure, web, cloud and OT environments. This is a fully remote role within Great Britain, with occasional client-site visits. What ...

Hiring: Senior Penetration Tester (CHECK/CREST) – Fully Remote (GB based) Salary: Up to £70k based on experience | Travel: Client sites when needed | Clearance: Must be eligible for SC Cyber Guarded Ltd is expanding! We're a long-established, independent cyber security company and the leading NCSC CHECK … provider in Northern Ireland now growing across the UK. We're looking for an experienced Penetration Tester (not entry level) to deliver high-assurance testing across infrastructure, web, cloud and OT environments. This is a fully remote role within Great Britain, with occasional client-site visits. What ...

Hiring: Senior Penetration Tester (CHECK/CREST) – Fully Remote (GB based) Salary: Up to £70k based on experience | Travel: Client sites when needed | Clearance: Must be eligible for SC Cyber Guarded Ltd is expanding! We're a long-established, independent cyber security company and the leading NCSC CHECK … provider in Northern Ireland now growing across the UK. We're looking for an experienced Penetration Tester (not entry level) to deliver high-assurance testing across infrastructure, web, cloud and OT environments. This is a fully remote role within Great Britain, with occasional client-site visits. What ...

Hiring: Senior Penetration Tester (CHECK/CREST) – Fully Remote (GB based) Salary: Up to £70k based on experience | Travel: Client sites when needed | Clearance: Must be eligible for SC Cyber Guarded Ltd is expanding! We're a long-established, independent cyber security company and the leading NCSC CHECK … provider in Northern Ireland now growing across the UK. We're looking for an experienced Penetration Tester (not entry level) to deliver high-assurance testing across infrastructure, web, cloud and OT environments. This is a fully remote role within Great Britain, with occasional client-site visits. What ...

Cleared Pentester Contract - 6 Months Rolling - Hybrid Reading - £515 PD Inside IR35 We're seeking a skilled Penetration Tester for a 6 month rolling contract starting in the New Year. The role is hybrid (3 days on site, 2 days remote) at a client site near Reading. … quality reports with clear remediation recommendations, and contributing to broader security consultancy projects. Essential requirements: Active SC clearance Proven 2 or 3 years in penetration testing CHECK Team Member (CTM) qualification (CREST or CyberScheme) Strong experience with Azure cloud pentesting (plus AWS is a bonus) Proficiency in penetration ...

have the expertise and drive to lead complex penetration testing engagements? We're on the lookout for a Senior Penetration Tester to join an established well-structured function; ideal for someone who enjoys autonomy, thrives in technically rewarding environments, and brings experience, leadership, and critical thinking … every engagement. Work alongside a talented team of penetration testers and consultants: Have a voice in shaping our tooling and methodologies, and influence both technical outcomes and the development of rising talent. Key Responsibilities: Lead penetration testing engagements (Web, Infra, Cloud etc) Apply and evolve testing frameworks ...

have the expertise and drive to lead complex penetration testing engagements? We're on the lookout for a Senior Penetration Tester to join an established well-structured function; ideal for someone who enjoys autonomy, thrives in technically rewarding environments, and brings experience, leadership, and critical thinking … every engagement. Work alongside a talented team of penetration testers and consultants: Have a voice in shaping our tooling and methodologies, and influence both technical outcomes and the development of rising talent. Key Responsibilities: Lead penetration testing engagements (Web, Infra, Cloud etc) Apply and evolve testing frameworks ...

have the expertise and drive to lead complex penetration testing engagements? We're on the lookout for a Senior Penetration Tester to join an established well-structured function; ideal for someone who enjoys autonomy, thrives in technically rewarding environments, and brings experience, leadership, and critical thinking … every engagement. Work alongside a talented team of penetration testers and consultants: Have a voice in shaping our tooling and methodologies, and influence both technical outcomes and the development of rising talent. Key Responsibilities: Lead penetration testing engagements (Web, Infra, Cloud etc) Apply and evolve testing frameworks ...

have the expertise and drive to lead complex penetration testing engagements? We're on the lookout for a Senior Penetration Tester to join an established well-structured function; ideal for someone who enjoys autonomy, thrives in technically rewarding environments, and brings experience, leadership, and critical thinking … every engagement. Work alongside a talented team of penetration testers and consultants: Have a voice in shaping our tooling and methodologies, and influence both technical outcomes and the development of rising talent. Key Responsibilities: Lead penetration testing engagements (Web, Infra, Cloud etc) Apply and evolve testing frameworks ...

have the expertise and drive to lead complex penetration testing engagements? We're on the lookout for a Senior Penetration Tester to join an established well-structured function; ideal for someone who enjoys autonomy, thrives in technically rewarding environments, and brings experience, leadership, and critical thinking … every engagement. Work alongside a talented team of penetration testers and consultants: Have a voice in shaping our tooling and methodologies, and influence both technical outcomes and the development of rising talent. Key Responsibilities: Lead penetration testing engagements (Web, Infra, Cloud etc) Apply and evolve testing frameworks ...

have the expertise and drive to lead complex penetration testing engagements? We're on the lookout for a Senior Penetration Tester to join an established well-structured function; ideal for someone who enjoys autonomy, thrives in technically rewarding environments, and brings experience, leadership, and critical thinking … every engagement. Work alongside a talented team of penetration testers and consultants: Have a voice in shaping our tooling and methodologies, and influence both technical outcomes and the development of rising talent. Key Responsibilities: Lead penetration testing engagements (Web, Infra, Cloud etc) Apply and evolve testing frameworks ...

have the expertise and drive to lead complex penetration testing engagements? We're on the lookout for a Senior Penetration Tester to join an established well-structured function; ideal for someone who enjoys autonomy, thrives in technically rewarding environments, and brings experience, leadership, and critical thinking … every engagement. Work alongside a talented team of penetration testers and consultants: Have a voice in shaping our tooling and methodologies, and influence both technical outcomes and the development of rising talent. Key Responsibilities: Lead penetration testing engagements (Web, Infra, Cloud etc) Apply and evolve testing frameworks ...

have the expertise and drive to lead complex penetration testing engagements? We're on the lookout for a Senior Penetration Tester to join an established well-structured function; ideal for someone who enjoys autonomy, thrives in technically rewarding environments, and brings experience, leadership, and critical thinking … every engagement. Work alongside a talented team of penetration testers and consultants: Have a voice in shaping our tooling and methodologies, and influence both technical outcomes and the development of rising talent. Key Responsibilities: Lead penetration testing engagements (Web, Infra, Cloud etc) Apply and evolve testing frameworks ...