1 to 25 of 70 Penetration Testing Jobs in the South East

Ready to take the next step in your penetration testing career and lead a high-performing team at a respected, fast-growing cybersecurity consultancy? This is your opportunity to join a CREST-certified organisation committed to excellence, innovation and integrity. As our new Penetration Testing Team Leader , you’ll play a pivotal role in shaping cutting … edge testing services, developing talented testers, and helping protect clients across government, telecoms, finance, digital currencies and other critical sectors. With structured development, meaningful progression opportunities, and the chance to make a visible impact from day one, this is a role designed for a driven, highly skilled Team Lead who thrives on technical depth, leadership and solving complex security … challenges. The Role at a Glance: Penetration Testing Team Leader Remote with travel to client sites and occasional meetings in London, UK or Channel Islands Up to £95,000 DOE Plus Benefits Benefits: 23 days holiday plus Bank Holidays and extra days based on service, 6% contributory pension and career progression opportunities. Growth: A structured career development plan More ❯

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 to provide strategic and actionable recommendations to significantly enhance our clients' security posture. Responsibilities: Lead and manage the full … lifecycle of complex penetration testing engagements, applying a strong threat intelligence-led approach. Execute advanced penetration tests across a broad range of environments (applications, infrastructure, web, APIs, O365, Azure, AWS, OT), directly applying your knowledge of current threat landscapes and attacker TTPs. Develop and maintain sophisticated test plans, execution plans, and targeted use cases directly informed by More ❯

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 is a respected organisation operating within a highly regulated and security focused environment. Their … teams support a wide 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 security testing across complex environments … The Penetration Tester Role As the Penetration Tester you will carry out a full range of technical security assessments across infrastructure, applications and networks, using manual and automated techniques to help identify and manage vulnerabilities. You will contribute to research activity, maintain current knowledge of threat trends, produce clear reports and communicate findings effectively to technical and non More ❯

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 is a respected organisation operating within a highly regulated and security focused environment. Their … teams support a wide 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 security testing across complex environments … The Penetration Tester Role As the Penetration Tester you will carry out a full range of technical security assessments across infrastructure, applications and networks, using manual and automated techniques to help identify and manage vulnerabilities. You will contribute to research activity, maintain current knowledge of threat trends, produce clear reports and communicate findings effectively to technical and non More ❯

on-premises data centers and public cloud environments. Evaluate technical security controls (such as firewalls, IDS/IPS, security baselines, access controls) by directly interrogating systems, reviewing configurations, and testing controls. (Co-)Conduct vulnerability scans, penetration testing, and protocol analysis using approved tools to validate the efficacy of implemented security measures. Collaborate face-to-face with IT … hands-on corrective input in real time, and supporting project delivery in a dynamic environment. Experience: Minimum 6 years' concrete, hands-on experience in technical IT audit, cyber security testing, penetration testing, or system security analysis. Strong background in technical audit execution within large, complex cloud and network environments. Experience directly configuring, reviewing, and testing network … security controls, not just theoretical or compliance-driven assessments. Preferably prior work in technology sector, ideally involving technical reviews of carrier-grade systems. Proficiency in tools for technical controls testing and vulnerability analysis. Solid experience performing audit tasks and analyse system outputs. In-depth hands-on knowledge of, cloud security frameworks, and endpoint protection strategies. Ability to independently interpret More ❯

Penetration Tester (OSCP) Location: Remote Position Type: Full-time Reports to: Senior Penetration Tester About the Organisation A high-growth security consultancy working across government, space programmes, and FTSE 100 organisations is expanding its offensive security function. The team delivers complex, high-impact testing and simulation work for clients across the UK, US, and Europe. With a … retention, and a track record of delivering cutting-edge work, this is an opportunity to develop quickly in a technically challenging environment. Role Overview We’re looking for a Penetration Tester/Red Team Consultant with 1–3 years’ experience who thrives on variety, problem-solving, and continuous learning. You’ll deliver offensive security assessments, red team operations, and … Responsibilities Deliver red team, purple team, and wider offensive security engagements. Conduct attack simulations, threat modelling, and targeted technical testing. Carry out occasional physical security assessments. Produce high-quality penetration testing and red team reports. Communicate findings clearly to both technical and non-technical stakeholders. Support the development of offensive security services and internal methodologies. Contribute to R More ❯

optimisation of our cloud-based architecture (primarily Azure) Oversee identity and access management (IAM) and related policies Deliver automation initiatives that improve scalability and efficiency Manage security operations including penetration testing, incident response, and risk assessments Ensure compliance with GDPR, Cyber Essentials, and other relevant frameworks Drive awareness and education on cyber security across the organisation Maintain and … or education sectors—but we welcome all backgrounds Essential Skills & Experience Proven experience leading infrastructure and cyber security functions Strong technical knowledge of Microsoft cloud environments Experience with IAM, penetration testing, and automation tools Good understanding of compliance frameworks (e.g. GDPR, Cyber Essentials) Excellent stakeholder engagement and communication skills Desirable: Relevant certifications such as Microsoft SC-300, CISSP More ❯

network and infrastructure systems, focusing on practical, technical evaluation and remediation of real-world risks. Role Minimum 5 years' concrete, hands-on experience in technical IT audit, cyber security testing, penetration testing, or system security analysis. Strong background in technical audit execution within large, complex cloud and network environments. Experience directly configuring, reviewing, and testing network … just theoretical or compliance-driven assessments. Preferably prior work in technology sector, ideally involving technical reviews of carrier-grade systems. Technical Skills & Competencies Proficiency in tools for technical controls testing and vulnerability analysis. Solid experience performing audit tasks and analyze system outputs. In-depth hands-on knowledge of, cloud security frameworks, and endpoint protection strategies. Ability to independently interpret More ❯

network and infrastructure systems, focusing on practical, technical evaluation and remediation of real-world risks. Role Minimum 5 years' concrete, hands-on experience in technical IT audit, cyber security testing, penetration testing, or system security analysis. Strong background in technical audit execution within large, complex cloud and network environments. Experience directly configuring, reviewing, and testing network … just theoretical or compliance-driven assessments. Preferably prior work in technology sector, ideally involving technical reviews of carrier-grade systems. Technical Skills & Competencies Proficiency in tools for technical controls testing and vulnerability analysis. Solid experience performing audit tasks and analyze system outputs. In-depth hands-on knowledge of, cloud security frameworks, and endpoint protection strategies. Ability to independently interpret More ❯

network and infrastructure systems, focusing on practical, technical evaluation and remediation of real-world risks. Role Minimum 5 years' concrete, hands-on experience in technical IT audit, cyber security testing, penetration testing, or system security analysis. Strong background in technical audit execution within large, complex cloud and network environments. Experience directly configuring, reviewing, and testing network … just theoretical or compliance-driven assessments. Preferably prior work in technology sector, ideally involving technical reviews of carrier-grade systems. Technical Skills & Competencies Proficiency in tools for technical controls testing and vulnerability analysis. Solid experience performing audit tasks and analyze system outputs. In-depth hands-on knowledge of, cloud security frameworks, and endpoint protection strategies. Ability to independently interpret More ❯

network and infrastructure systems, focusing on practical, technical evaluation and remediation of real-world risks. Role Minimum 5 years' concrete, hands-on experience in technical IT audit, cyber security testing, penetration testing, or system security analysis. Strong background in technical audit execution within large, complex cloud and network environments. Experience directly configuring, reviewing, and testing network … just theoretical or compliance-driven assessments. Preferably prior work in technology sector, ideally involving technical reviews of carrier-grade systems. Technical Skills & Competencies Proficiency in tools for technical controls testing and vulnerability analysis. Solid experience performing audit tasks and analyze system outputs. In-depth hands-on knowledge of, cloud security frameworks, and endpoint protection strategies. Ability to independently interpret More ❯

network and infrastructure systems, focusing on practical, technical evaluation and remediation of real-world risks. Role Minimum 5 years' concrete, hands-on experience in technical IT audit, cyber security testing, penetration testing, or system security analysis. Strong background in technical audit execution within large, complex cloud and network environments. Experience directly configuring, reviewing, and testing network … just theoretical or compliance-driven assessments. Preferably prior work in technology sector, ideally involving technical reviews of carrier-grade systems. Technical Skills & Competencies Proficiency in tools for technical controls testing and vulnerability analysis. Solid experience performing audit tasks and analyze system outputs. In-depth hands-on knowledge of, cloud security frameworks, and endpoint protection strategies. Ability to independently interpret More ❯

network and infrastructure systems, focusing on practical, technical evaluation and remediation of real-world risks. Role Minimum 5 years' concrete, hands-on experience in technical IT audit, cyber security testing, penetration testing, or system security analysis. Strong background in technical audit execution within large, complex cloud and network environments. Experience directly configuring, reviewing, and testing network … just theoretical or compliance-driven assessments. Preferably prior work in technology sector, ideally involving technical reviews of carrier-grade systems. Technical Skills & Competencies Proficiency in tools for technical controls testing and vulnerability analysis. Solid experience performing audit tasks and analyze system outputs. In-depth hands-on knowledge of, cloud security frameworks, and endpoint protection strategies. Ability to independently interpret More ❯

network and infrastructure systems, focusing on practical, technical evaluation and remediation of real-world risks. Role Minimum 5 years' concrete, hands-on experience in technical IT audit, cyber security testing, penetration testing, or system security analysis. Strong background in technical audit execution within large, complex cloud and network environments. Experience directly configuring, reviewing, and testing network … just theoretical or compliance-driven assessments. Preferably prior work in technology sector, ideally involving technical reviews of carrier-grade systems. Technical Skills & Competencies Proficiency in tools for technical controls testing and vulnerability analysis. Solid experience performing audit tasks and analyze system outputs. In-depth hands-on knowledge of, cloud security frameworks, and endpoint protection strategies. Ability to independently interpret More ❯

network and infrastructure systems, focusing on practical, technical evaluation and remediation of real-world risks. Role Minimum 5 years' concrete, hands-on experience in technical IT audit, cyber security testing, penetration testing, or system security analysis. Strong background in technical audit execution within large, complex cloud and network environments. Experience directly configuring, reviewing, and testing network … just theoretical or compliance-driven assessments. Preferably prior work in technology sector, ideally involving technical reviews of carrier-grade systems. Technical Skills & Competencies Proficiency in tools for technical controls testing and vulnerability analysis. Solid experience performing audit tasks and analyze system outputs. In-depth hands-on knowledge of, cloud security frameworks, and endpoint protection strategies. Ability to independently interpret More ❯

network and infrastructure systems, focusing on practical, technical evaluation and remediation of real-world risks. Role Minimum 5 years' concrete, hands-on experience in technical IT audit, cyber security testing, penetration testing, or system security analysis. Strong background in technical audit execution within large, complex cloud and network environments. Experience directly configuring, reviewing, and testing network … just theoretical or compliance-driven assessments. Preferably prior work in technology sector, ideally involving technical reviews of carrier-grade systems. Technical Skills & Competencies Proficiency in tools for technical controls testing and vulnerability analysis. Solid experience performing audit tasks and analyze system outputs. In-depth hands-on knowledge of, cloud security frameworks, and endpoint protection strategies. Ability to independently interpret More ❯

network and infrastructure systems, focusing on practical, technical evaluation and remediation of real-world risks. Role Minimum 5 years' concrete, hands-on experience in technical IT audit, cyber security testing, penetration testing, or system security analysis. Strong background in technical audit execution within large, complex cloud and network environments. Experience directly configuring, reviewing, and testing network … just theoretical or compliance-driven assessments. Preferably prior work in technology sector, ideally involving technical reviews of carrier-grade systems. Technical Skills & Competencies Proficiency in tools for technical controls testing and vulnerability analysis. Solid experience performing audit tasks and analyze system outputs. In-depth hands-on knowledge of, cloud security frameworks, and endpoint protection strategies. Ability to independently interpret More ❯

Security Engineer GCP, Cloud Security, Pen Testing- Hybrid (London) You will be joining a company that build software solutions fast to solve real problems within the workplace. The team builds tools that help engineering and product teams respond to incidents, reduce downtime, and continuously improve. Were looking for a pragmatic, energetic customer facing and product-minded engineers who will … Teams to embed security features into designs Detect security weaknesses across API's, Applications and Infrastructure Driving secure development practices across the business Requirements: White-box and Black-box testing Penetration Testing Cloud Security in GCP Secure Software Development (Go, Typescript) Ability to conduct in-depth Security Research If you're interested please get in touch ASAP More ❯

Penetration Tester - SC CLEARED - Wokingham, Berkshire and remote - 5 months+ - START: JANUARY/FEBRUARY (Tester, Test, Testing, Test Analyst, Test Engineer, Test Specialist, AWS, Azure, Cloud, Crest, CyberScheme) One of our Blue Chip Clients is urgently looking for an SC Cleared Penetration Tester. Please find some details below: CONTRACTOR MUST HOLD ACTIVE SC CLEARANCE MUST BE PAYE … THROUGH UMBRELLA Role Description: A penetration tester plays a vital role within the UK's cybersecurity industry, particularly when assisting organisations with managing and mitigating security risks. The core responsibilities of a penetration tester are to identify vulnerabilities that are present in an organisation's IT infrastructure, applications, and networks through rigorous testing. Employing both manual and automated … for maintaining an up-to-date knowledge of the ever-evolving threat landscape, adhering to ethical guidelines especially when handling sensitive data. In addition to strong technical skills, a penetration tester also needs to be able to demonstrate strong communication skills so complex findings can be described to non-technical stakeholders. Key Responsibilities Work as a professional, deliverable Technical More ❯

UAT Test Manager - Contract Location: Reading (Hybrid) Start Date: ASAP Duration: 6 months We're looking for an experienced UAT Test Manager to lead testing for a major ServiceNow replatform project . You'll manage end-to-end testing activities, including SIT, penetration testing, and UAT, ensuring quality and timely delivery. Testing will include validation … integration, system and performance testing of software in a Windows environment. The role must provide support for the planning and execution of test activities, working within the agreed IT processes, in order to ensure robust and high-quality solutions to the end-user community. Key Responsibilities Define and implement test strategy and plans. Manage UAT and oversee all test More ❯

Our client is looking for a Penetration Tester to join their team on six month initial contract, working onsite three days a week in Wokingham and the rest remote. This role is working via umbrella and requires a candidate with an active SC clearance. Required Skills, Experience And Personal Attributes Proven experience (2-3 years) in an IT security … pressurised environment whilst working towards and achieving deadlines. Use of MS Office software such as Word, Excel, Powerpoint The ability to travel to Capgemini customer locations. Strong knowledge of penetration testing tools including (Burpsuite, Metasploit, Nmap) etc Good knowledge of multiple Operating Systems (OS) including Windows & *NIX Ability to configure network devices, firewalls, IDS/IPS devices and More ❯

Our client is looking for a Penetration Tester to join their team on six month initial contract, working onsite three days a week in Wokingham and the rest remote. This role is working via umbrella and requires a candidate with an active SC clearance. Required Skills, Experience And Personal Attributes Proven experience (2-3 years) in an IT security … pressurised environment whilst working towards and achieving deadlines. Use of MS Office software such as Word, Excel, Powerpoint The ability to travel to Capgemini customer locations. Strong knowledge of penetration testing tools including (Burpsuite, Metasploit, Nmap) etc Good knowledge of multiple Operating Systems (OS) including Windows & *NIX Ability to configure network devices, firewalls, IDS/IPS devices and More ❯

from home. Key Responsibilities Monitor and analyse alerts from SIEM, EDR, firewalls, and other security platforms Lead and coordinate incident response activities Manage security projects including DPIAs, supplier assurance, penetration testing, and remediation Support evaluation and implementation of emerging technology, including AI security tools Conduct threat hunting and support vulnerability scanning and patch management Develop and refine security More ❯

from home. Key Responsibilities Monitor and analyse alerts from SIEM, EDR, firewalls, and other security platforms Lead and coordinate incident response activities Manage security projects including DPIAs, supplier assurance, penetration testing, and remediation Support evaluation and implementation of emerging technology, including AI security tools Conduct threat hunting and support vulnerability scanning and patch management Develop and refine security More ❯

tools Operational (40%) Manage security environments across Azure and AWS infrastructure Coordinate security incident response and vulnerability remediation Oversee security monitoring, alerting, and detection capabilities Manage vulnerability assessment and penetration testing programs Maintain identity and access management controls Compliance & Assurance (30%) Maintain ISO27001 certification and manage audit cycles Ensure PCI/DSS compliance for payment processing systems Manage More ❯