12 of 12 Senior Penetration Tester Jobs in the South East

Social network you want to login/join with: Senior Cybersecurity Consultant (Penetration Tester), slough col-narrow-left Client: Anson McCade Location: slough, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 7 Posted: 16.06.2025 Expiry Date: 31.07.2025 col-wide Job Description: A premier UK consultancy is seeking a skilled and … passionate Penetration Tester to join its growing team of cybersecurity experts. This is a dynamic opportunity for individuals with strong technical skills and a proactive mindset, eager to make a tangible impact across a wide range of client environments. Working on mission critical projects across National Security, Critical National Infrastructure and Defence the Senior Penetration Tester will liaise with highly-skilled teams acting as a trusted advisor. Key Responsibilities: Conduct hands-on internal penetration tests in infrastructure/Active Directory environments Produce clear and concise technical reports, summarising findings for both technical and business stakeholders Work directly with clients as a trusted advisor – this is a consulting-facing role Operate in sensitive, high-risk More ❯

As a Senior Security Penetration Tester , you will be responsible for supporting the design, implementation, and maintenance of TVM (Threat & Vulnerability Management) solutions, controls and processes across the organisation. You will be liaising with Digital teams to ensure appropriate mitigation and remediation of vulnerabilities detected across our IT estate. This role requires an understanding of TVM concepts … ideal candidate will possess strong communication skills and will be committed to ensuring the highest level of security, compliance, and user experience. What you’ll be doing as a Senior Security Penetration Tester Help support and develop an internal penetration testing function. Conduct network, application penetration testing, code and security reviews. Identify and exploit vulnerabilities … is implemented and maintained. Responsible for supporting the creation of the operating model for vulnerability management, which is shared, agreed and operates effectively across the business. Develop and maintain penetration testing documentation, policies, and procedures. Integrate cybersecurity solutions (e.g. vulnerability scanning tools) with existing systems, applications, and infrastructure. Evaluate and recommend technologies, tools, and vendors to meet business needs. More ❯

Senior Penetration Tester | 12 Month Initial Contract | £750 - £850 per day (Inside IR35) | Cheltenham or London | 1 day per week on-site | SC Clearance Eligibility Required MERITUS Talent are working with a boutique Defence consultancy supporting a UK Central Government department in their Cyber Security function. We're looking for an experienced Senior Penetration Tester … leads, particularly those working independently without peer support. Advising the wider project team on best practices in red teaming and adversary simulation. Skills Required: Solid hands-on experience in penetration testing and red teaming, particularly in operational environments. A background in technical QA - reviewing, validating, and improving the output of other testers. Experience as an assessor or contributor to More ❯

As a Senior Security Penetration Tester , you will be responsible for supporting the design, implementation, and maintenance of TVM (Threat & Vulnerability Management) solutions, controls and processes across the organisation. You will be liaising with Digital teams to ensure appropriate mitigation and remediation of vulnerabilities detected across our IT estate. This role requires an understanding of TVM concepts … The ideal candidate will possess strong communication and will be committed to ensuring the highest level of security, compliance, and user experience. What you’ll be doing as a Senior Security Penetration Tester Help support and develop an internal penetration testing function. Conduct network, application penetration testing, code and security reviews. Identify and exploit vulnerabilities … implemented and maintained. Responsible for supporting the creation of the operating model for vulnerability management, that it is shared, agreed and operates effectively across the business. Develop and maintain penetration testing documentation, policies, and procedures. Integrate cyber security solutions (e.g. vulnerability scanning tools) with existing systems, applications, and infrastructure. Evaluate and recommend technologies, tools, and vendors to meet business More ❯

Opus are looking for an experienced Penetration Tester to join our client, a cyber consultancy specialising exclusively in penetration testing and red teaming, delivering high-impact, adversary-simulated engagements for clients ranging from agile tech scale-ups to critical infrastructure providers. As a Senior Penetration Tester, you’ll play a central role in executing … position suited to someone who thrives in technically demanding scenarios and wants to work alongside a small, elite team of offensive security specialists. Key Responsibilities Lead and execute complex penetration tests and adversary simulations Deliver red team engagements aligned with frameworks like TIBER, CBEST, and MITRE ATT&CK Develop custom tooling and exploits where required Create detailed, client-facing … technical and executive reports Mentor junior testers and contribute to internal R&D Stay sharp: engage in continuous learning and threat landscape analysis About You Proven experience in penetration testing and red teaming (internal, external, app, cloud, etc.) Strong understanding of attacker TTPs and detection evasion Familiarity with frameworks such as OWASP , MITRE ATT&CK , and NIST Experience with More ❯

Senior Penetration Tester, crawley, west sussex Client: Opus Recruitment Solutions Location: crawley, west sussex, United Kingdom Job Category: Other - EU work permit required: Yes Job Views: 3 Posted: 24.06.2025 Expiry Date: 08.08.2025 Job Description: Opus are looking for an experienced Penetration Tester to join our client, a cyber consultancy specialising exclusively in penetration testing … and red teaming, delivering high-impact, adversary-simulated engagements for clients ranging from agile tech scale-ups to critical infrastructure providers. As a Senior Penetration Tester, you’ll play a central role in executing and shaping these engagements—across infrastructure, web, cloud, and bespoke environments—while also leading goal-based assessments and full-scale red team operations. … position suited to someone who thrives in technically demanding scenarios and wants to work alongside a small, elite team of offensive security specialists. Key Responsibilities Lead and execute complex penetration tests and adversary simulations Deliver red team engagements aligned with frameworks like TIBER, CBEST, and MITRE ATT&CK Develop custom tooling and exploits where required Create detailed, client-facing More ❯

Opus are looking for an experienced Penetration Tester to join our client, a cyber consultancy specialising exclusively in penetration testing and red teaming, delivering high-impact, adversary-simulated engagements for clients ranging from agile tech scale-ups to critical infrastructure providers. As a Senior Penetration Tester, you’ll play a central role in executing … position suited to someone who thrives in technically demanding scenarios and wants to work alongside a small, elite team of offensive security specialists. Key Responsibilities Lead and execute complex penetration tests and adversary simulations Deliver red team engagements aligned with frameworks like TIBER, CBEST, and MITRE ATT&CK Develop custom tooling and exploits where required Create detailed, client-facing … technical and executive reports Mentor junior testers and contribute to internal R&D Stay sharp: engage in continuous learning and threat landscape analysis About You Proven experience in penetration testing and red teaming (internal, external, app, cloud, etc.) Strong understanding of attacker TTPs and detection evasion Familiarity with frameworks such as OWASP , MITRE ATT&CK , and NIST Experience with More ❯

Opus are looking for an experienced Penetration Tester to join our client, a cyber consultancy specialising exclusively in penetration testing and red teaming, delivering high-impact, adversary-simulated engagements for clients ranging from agile tech scale-ups to critical infrastructure providers. As a Senior Penetration Tester, you’ll play a central role in executing … position suited to someone who thrives in technically demanding scenarios and wants to work alongside a small, elite team of offensive security specialists. Key Responsibilities Lead and execute complex penetration tests and adversary simulations Deliver red team engagements aligned with frameworks like TIBER, CBEST, and MITRE ATT&CK Develop custom tooling and exploits where required Create detailed, client-facing … technical and executive reports Mentor junior testers and contribute to internal R&D Stay sharp: engage in continuous learning and threat landscape analysis About You Proven experience in penetration testing and red teaming (internal, external, app, cloud, etc.) Strong understanding of attacker TTPs and detection evasion Familiarity with frameworks such as OWASP , MITRE ATT&CK , and NIST Experience with More ❯

Opus are looking for an experienced Penetration Tester to join our client, a cyber consultancy specialising exclusively in penetration testing and red teaming, delivering high-impact, adversary-simulated engagements for clients ranging from agile tech scale-ups to critical infrastructure providers. As a Senior Penetration Tester, you’ll play a central role in executing … position suited to someone who thrives in technically demanding scenarios and wants to work alongside a small, elite team of offensive security specialists. Key Responsibilities Lead and execute complex penetration tests and adversary simulations Deliver red team engagements aligned with frameworks like TIBER, CBEST, and MITRE ATT&CK Develop custom tooling and exploits where required Create detailed, client-facing … technical and executive reports Mentor junior testers and contribute to internal R&D Stay sharp: engage in continuous learning and threat landscape analysis About You Proven experience in penetration testing and red teaming (internal, external, app, cloud, etc.) Strong understanding of attacker TTPs and detection evasion Familiarity with frameworks such as OWASP , MITRE ATT&CK , and NIST Experience with More ❯

Opus are looking for an experienced Penetration Tester to join our client, a cyber consultancy specialising exclusively in penetration testing and red teaming, delivering high-impact, adversary-simulated engagements for clients ranging from agile tech scale-ups to critical infrastructure providers. As a Senior Penetration Tester, you’ll play a central role in executing … position suited to someone who thrives in technically demanding scenarios and wants to work alongside a small, elite team of offensive security specialists. Key Responsibilities Lead and execute complex penetration tests and adversary simulations Deliver red team engagements aligned with frameworks like TIBER, CBEST, and MITRE ATT&CK Develop custom tooling and exploits where required Create detailed, client-facing … technical and executive reports Mentor junior testers and contribute to internal R&D Stay sharp: engage in continuous learning and threat landscape analysis About You Proven experience in penetration testing and red teaming (internal, external, app, cloud, etc.) Strong understanding of attacker TTPs and detection evasion Familiarity with frameworks such as OWASP , MITRE ATT&CK , and NIST Experience with More ❯

Location: portsmouth, hampshire, United Kingdom Job Category: Other - EU work permit required: Yes Job Views: 3 Posted: 24.06.2025 Expiry Date: 08.08.2025 Job Description: Opus are looking for an experienced Penetration Tester to join our client, a cyber consultancy specialising exclusively in penetration testing and red teaming, delivering high-impact, adversary-simulated engagements for clients ranging from agile … tech scale-ups to critical infrastructure providers. As a Senior Penetration Tester, you’ll play a central role in executing and shaping these engagements—across infrastructure, web, cloud, and bespoke environments—while also leading goal-based assessments and full-scale red team operations. This is a hands-on, client-facing position suited to someone who thrives in … technically demanding scenarios and wants to work alongside a small, elite team of offensive security specialists. Key Responsibilities Lead and execute complex penetration tests and adversary simulations Deliver red team engagements aligned with frameworks like TIBER, CBEST, and MITRE ATT&CK Develop custom tooling and exploits where required Create detailed, client-facing technical and executive reports Mentor junior testers More ❯

Social network you want to login/join with: Senior Penetration Tester -£240,000+ Package, slough col-narrow-left Client: Entasis Partners Location: slough, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 5 Posted: 26.06.2025 Expiry Date: 10.08.2025 col-wide Job Description: Entasis Partners are proud to be exclusively supporting … calibre of internal talent make for an exceptionally challenging and rewarding opportunity. With a newly developed central London site focused on next-generation research, this firm is seeking a Senior Penetration Tester to strengthen its already world-class internal security capability. The Opportunity This is a hands-on, highly autonomous role embedded within a specialist cyber function. … You’ll be trusted to scope, execute, and deliver sophisticated penetration tests and control assessments across a range of technologies including Kubernetes, Jenkins, and Windows-based infrastructure. More than just finding issues, you’ll work in partnership with teams across the business to advise, remediate, and embed meaningful improvements. The environment is agile, collaborative, and engineered for depth not More ❯