1 to 25 of 32 Penetration Testing Jobs in the South East

Penetration Testing Program Manager PMO Pen Manager 3 months Wokingham - 50% on site £450 MUST HAVE ACTIVE SC Summary A dynamic and detail-oriented PMO to oversee and coordinate a Penetration Testing (PEN Testing) program. This role is pivotal in ensuring that testing activities are well-managed, results are clearly communicated, and remediation efforts … are tracked across the organisation. While deep technical expertise in cybersecurity is not required, the ideal candidate will possess a strong understanding of PEN Testing concepts and be able to translate technical findings into actionable insights for senior stakeholders. Key Responsibilities Manage the end-to-end lifecycle of PEN Testing engagements across multiple teams and vendors Coordinate scheduling … resource allocation, and reporting timelines for all PEN Testing activities Review and consolidate PEN Test results, ensuring clarity and consistency in reporting Communicate findings, risks, and remediation progress to senior leadership and relevant business units Track and escalate unresolved issues or critical vulnerabilities Maintain documentation, dashboards, and audit trails for compliance and governance Collaborate with cybersecurity teams to ensure More ❯

Job Title: CREST Accredited Security Tester 6 Month Contract Hybrid (Central London based) £670 Per Day Inside IR35 Overview: Seeking a CREST-accredited Security Tester with strong penetration testing and vulnerability management expertise. Skilled in Tenable Nessus and experienced in managing third-party testing engagements , you'll deliver high-impact security assurance across complex environments. Key Responsibilities … Conduct internal penetration testing and security assessments across cloud and on-premise systems. Scope, execute, and report on tests using CREST standards and Nessus . Produce clear, high-quality scopes, proposals, and technical reports . Provide SME guidance on threats, risks, and testing methodologies. Manage and coordinate third-party CHECK/CREST testers . Lead vulnerability management … activities, validating remediation. Contribute to testing frameworks, playbooks, and secure-by-design practices . Research and assess emerging threats to enhance testing capability. Skills & Experience: CREST certification (CRT or equivalent). Proven penetration testing and security assurance expertise. Strong hands-on experience with Tenable Nessus . Track record of managing third-party pen testing engagements More ❯

are looking for a technically exceptional and visionary Senior Manager to lead our Offensive Security function. This role is both strategic and hands-on, responsible for delivering high-impact penetration testing, attack surface management, and a mature bug bounty program. The ideal candidate will be a transformation leader with deep technical expertise in offensive security and a passion … Security will serve as both a strategic leader and hands-on technical expert, driving the evolution of our offensive security capabilities. This role is accountable for delivering high-impact penetration testing, managing our attack surface, and overseeing a global bug bounty program. With a strong focus on identifying control gaps and advancing purple team maturity, the ideal candidate … a transformation mindset, and a proven ability to lead and inspire high-performing teams in a dynamic, threat-informed environment. RESPONSIBILITIES Technical Leadership & Execution - Personally lead and execute advanced penetration tests, red/purple team exercises, and adversary emulation campaigns across cloud, application, and infrastructure layers. - Identify and exploit vulnerabilities to simulate real-world attack scenarios, validate detection and More ❯

Penetration Tester 6 months Wokingham - 50% on site £450 Summary A dynamic and detail-oriented PMO to oversee and coordinate a Penetration Testing (PEN Testing) program. This role is pivotal in ensuring that testing activities are well-managed, results are clearly communicated, and remediation efforts are tracked across the organisation. While deep technical expertise in … cybersecurity is not required, the ideal candidate will possess a strong understanding of PEN Testing concepts and be able to translate technical findings into actionable insights for senior stakeholders. Key Responsibilities Manage the end-to-end lifecycle of PEN Testing engagements across multiple teams and vendors Coordinate scheduling, resource allocation, and reporting timelines for all PEN Testing … Facilitate post-test reviews and lessons learned sessions Required Skills & Experience Proven experience in a PMO, project management, or program coordination role Familiarity with cybersecurity principles, especially around PEN Testing and vulnerability management Strong communication skills with the ability to translate technical content for non-technical audiences Excellent organisational and stakeholder management abilities Experience working in regulated environments or More ❯

Why join Dionach by Nomios? Since being acquired by Nomios in late 2024, Dionach by Nomios has continued its dynamic growth as a leading information security company. Specializing in penetration testing and information assurance services, we offer an incredible opportunity to be part of an experienced team, build your skills, and grow professionally. Dionach by Nomios holds impressive … environment for all our employees. If you require accommodations during the application process, let us know, and we'll work to meet your needs. What You'll Do • Conduct penetration tests across various environments, including web applications, APIs, Cloud, and network infrastructure. • Issue detailed reports outlining findings, risks, and recommendations for remediation. • Translate complex technical findings into actionable insights … engagements, as needed. What We're Looking For • Certifications: Relevant certifications such as CREST CRT, CREST CCT, OSCP, OSWE, OSCE, or equivalent level. • Experience: At least two years in penetration testing, covering network, web, and internal tests and customer engagements. • Tools: Proficiency with tools like Burpsuite Pro, Nessus, and other industry standards. • Communication: Strong verbal and written skills More ❯

Penetration Tester (SC Cleared) Location: Wokingham - Hybrid working (50/50 split) Contract Duration: Until 26/12/2025 initially - with a view to extend Daily Rate: £525/day Inside IR35 - Candidates will need to work through an Umbrella Company Clearance Required: Active SC Clearance We are looking for an experienced Penetration Tester to join a … team. This role offers the opportunity to work on a hybrid basis, engaging in high-impact security assessments across various platforms and environments. Key Responsibilities: Conduct manual and automated penetration tests on web applications, networks, APIs, and mobile platforms Identify, exploit, and document vulnerabilities, delivering detailed risk assessments Design and execute red team exercises and threat simulations Work closely … on emerging threats, tools, and techniques Support internal security awareness training and initiatives Contribute to the development of security policies and best practices Required Skills & Experience: Strong background in penetration testing, ethical hacking, or red teaming Deep knowledge of OWASP Top 10, MITRE ATT&CK, and CVSS scoring systems Proficiency with tools such as Burp Suite, Metasploit, Nmap More ❯

Penetration Tester - Hybrid (Wokingham) - Circa 400 per day inside ir35 - 2/3 months+ All applicants must hold an active SC clearance. My client is a global leading IT consultancy. They are on the hunt for an SC cleared PEN Tester to join them on an assigment until the end of the year. Key Responsibilities Conduct manual and automated … penetration tests on web applications, networks, APIs, and mobile platforms Identify, exploit, and document security vulnerabilities with detailed risk assessment Develop and execute red team exercises and threat simulations Collaborate with development and infrastructure teams to remediate findings Prepare comprehensive reports outlining findings, impact, and mitigation strategies Stay current with latest attack vectors, tools, and security trends Assist in … security awareness training and internal education efforts Contribute to security policies and best practices development Required Skills & Qualifications Proven experience in penetration testing, ethical hacking, or red teaming Strong understanding of OWASP Top 10, MITRE ATT&CK, and CVSS scoring Proficiency with tools like Burp Suite, Metasploit, Nmap, Wireshark, Kali Linux Familiarity with scripting languages (Python, Bash, PowerShell More ❯

Penetration Tester - Hybrid (Wokingham) - Circa £400 per day inside ir35 - 2/3 months+ All applicants must hold an active SC clearance. My client is a global leading IT consultancy. They are on the hunt for an SC cleared PEN Tester to join them on an assigment until the end of the year. Key Responsibilities Conduct manual and automated … penetration tests on web applications, networks, APIs, and mobile platforms Identify, exploit, and document security vulnerabilities with detailed risk assessment Develop and execute red team exercises and threat simulations Collaborate with development and infrastructure teams to remediate findings Prepare comprehensive reports outlining findings, impact, and mitigation strategies Stay current with latest attack vectors, tools, and security trends Assist in … security awareness training and internal education efforts Contribute to security policies and best practices development Required Skills & Qualifications Proven experience in penetration testing, ethical hacking, or red teaming Strong understanding of OWASP Top 10, MITRE ATT&CK, and CVSS scoring Proficiency with tools like Burp Suite, Metasploit, Nmap, Wireshark, Kali Linux Familiarity with scripting languages (Python, Bash, PowerShell More ❯

Penetration Tester - Hybrid (Wokingham) - Circa £400 per day inside ir35 - 2/3 months+ All applicants must hold an active SC clearance. My client is a global leading IT consultancy. They are on the hunt for an SC cleared PEN Tester to join them on an assigment until the end of the year. Key Responsibilities Conduct manual and automated … penetration tests on web applications, networks, APIs, and mobile platforms Identify, exploit, and document security vulnerabilities with detailed risk assessment Develop and execute red team exercises and threat simulations Collaborate with development and infrastructure teams to remediate findings Prepare comprehensive reports outlining findings, impact, and mitigation strategies Stay current with latest attack vectors, tools, and security trends Assist in … security awareness training and internal education efforts Contribute to security policies and best practices development Required Skills & Qualifications Proven experience in penetration testing, ethical hacking, or red teaming Strong understanding of OWASP Top 10, MITRE ATT&CK, and CVSS scoring Proficiency with tools like Burp Suite, Metasploit, Nmap, Wireshark, Kali Linux Familiarity with scripting languages (Python, Bash, PowerShell More ❯

detection, incident response, and cyber kill chain Familiarity with MITRE ATT&CK, NIST, and CIS frameworks Understanding of network traffic flows and vulnerability management Exposure to ethical hacking and penetration testing Knowledge of ITIL disciplines (Incident, Problem, Change Management) Experience with ServiceNow Security Suite Cloud experience (AWS and/or Azure) Excellent communication, presentation, and analytical skills Ability More ❯

Position: Penetration Tester Location: London (with potential travel to client sites) Contract Role - [6-12 months, extendable] A deliverables-focused role, working on defined OT penetration testing engagements. What You'll Do: Conduct thorough penetration tests on client systems, applications, and networks - specifically OT/ICS systems - to identify security weaknesses. Perform threat modelling and adversarial … simulations. Collaborate with clients to understand their security needs and provide tailored recommendations. Develop and execute test plans, ensuring all testing is carried out ethically and professionally. Document and present findings in clear, concise reports, highlighting vulnerabilities and their potential impacts. Advise on remediation steps aligned with OT security best practices and relevant standards (e.g. IEC 62443, NIS2, NERC More ❯

response for security risks and issues raised by SOC teams Manage implementation of logging and SIEM integration for comprehensive monitoring Prioritise and oversee vulnerability remediation across the platform Support penetration testing activities and security audits Collaboration & Leadership: Build strong relationships with central security teams and contribute to communities of practice Manage escalations of security-related issues, risks, and More ❯

Leading the cultural shift towards secure software development across product teams Defining and implementing the software security strategy in line with business goals Collaborating with developers to automate security testing and embed security requirements into the SDLC Supporting penetration testing, vulnerability management, and remediation efforts Acting as a software security SME, advising teams on secure design, risk More ❯

and reporting to enable informed, risk-based decisions. What you'll bring: Strong knowledge of networking, cloud security (AWS/Azure), and modern security concepts. Familiarity with vulnerability management, penetration testing, and security frameworks. Experience with security standards (ISO 27001/27002/27017/27018). Minimum 5 years in cybersecurity, with certifications like CISSP, CISM, CCSP More ❯

CI/CD pipelines and infrastructure-as-code (IaC) deployments across Azure. Lead container, API, and web application security initiatives, including code reviews. Support threat modelling, vulnerability management, and penetration testing activities. Drive logging integration with SIEM tools, enabling SOC monitoring and incident response. Coach engineering teams on cloud security principles and manage audit-related actions. What You More ❯

background in incident response, SOC operations, and security investigations. Hands-on expertise with SIEM tools (Splunk, QRadar, Microsoft Sentinel). Deep understanding of network traffic analysis, vulnerability management, and penetration testing. Knowledge of DFIR principles, malware reverse engineering, and digital forensics. Familiarity with ITIL processes (Incident, Problem, Change). Experience with cloud platforms (AWS and/or Azure). More ❯

to proactively enhance the organization's network security posture Ensure compliance with relevant security regulations and standards and assist in audit processes as needed Conduct regular security assessments including penetration testing and vulnerability assessments to identify and remediate potential security risks ESSENTIAL EXPERIENCE 12 years of Proven experience in network security with a strong understanding of network security More ❯

company IT security, and stability of all IT systems and services. Key Responsibilities: Implement and enforce cybersecurity best practices (ISO 27001,CE+, CIS benchmarks), including endpoint protection, vulnerability scanning, penetration testing, and incident response planning. Ensure compliance with regulatory standards such as GDPR Ensure best security practice for Office 365, Exchange Online, and SharePoint administration. Administer firewalls, VPNs More ❯

measures in line with best practices to ensure that the client is protected against the latest cyber security threats • Work with third parties and internal teams to schedule proactive penetration tests, ensuring that vulnerabilities are resolved or mitigated • Support the delivery of security training to all end users • Regular monitoring of potential security risks externally and internally, provide clear … to protect against unauthorised access and potential threats • Proficient with SIEM, IDS/IPS, vulnerability scanners, and Azure security tools. • Experience of leading on technical vulnerability assessments and regular penetration testing of IT systems and processes to identify potential vulnerabilities and provide recommendations for risk mitigation • Experience in testing and reviewing new security solutions • A strong commitment More ❯

occasional evenings/weekends for planned exercises (not a 24/7 role) Desirable: Degree or equivalent experience Previous consulting or technical client-facing experience Background in SOC, Pen Testing, InfoSec, or Systems Admin Knowledge of BGP, WAF, CDN, or cloud platforms (AWS, Azure, GCP) Basic scripting (e.g. Python, Bash) for automation or analysis Please note that at times More ❯

security team, monitoring and analysing real-time security events using SIEM tools to detect and respond to potential threats. The Cyber Security Engineer will conduct regular vulnerability assessments and penetration tests to identify and mitigate security risks and breaches, and will investigate security incidents and conduct forensic analysis to determine the root cause and recommend remediation actions. Outside of … Firewalls, VPN, EDR/XDR, mail filtering and other security products Experience of Security Information Event Management (SIEM) tools Any experience or knowledge of ISO27001 as well as with penetration testing/vulnerability scanning would be highly advantageous The list above is important, but not as important as hiring the right person! So if you don't meet More ❯

considered suitable you will need the following skills and experience: - Experience in either a Cyber Analyst or Cyber Engineer role - SC Cleared/Clearance - Experience in network audits and penetration testing - Previous experience of delivering Cyber Essentials Plus - Knowledge of security frameworks - Generalist IT security background - Strong communication skills More ❯

AWS security controls, policies, and automation- Role-based and attribute-based access controls- Cryptographic protocols and secure key lifecycle management- Securing microservices, APIs, and DevSecOps best practices Skilled in penetration testing and hands-on coding with JavaScript, Java, or Python Strong understanding of vulnerability scanning, remediation, and vendor management Collaborative mindset with the ability to partner across engineering More ❯

Venn Group Position : Penetration Tester Work Pattern : Hybrid (approx. 2–3 days on-site) Greater reading Contract Length :3 months (likely extension) Day Rate ( DOE): £375 – £425 via Umbrella per day Contract Type : 3-month initial term (extensions expected) IR35 Status : Inside Active Clearance : SC About the Role Our client are looking for a skilled Pen Tester to join … a variety of environments. You’ll be carrying out security assessments, advising on risk, and helping to build a stronger security culture across the business. Main Duties Carry out penetration tests (both automated and manual) on applications, networks, APIs, and mobile systems. Detect and exploit weaknesses, providing clear risk-based assessments Design and run red team scenarios and adversary … attack techniques, and security tooling Support internal awareness sessions and training around cyber threats Feed into the development of security standards, guidance, and processes Skillset & requirements Solid background in penetration testing, ethical hacking, or red teaming engagements Strong knowledge of frameworks such as OWASP Top 10 , MITRE ATT&CK , and risk-scoring methods like CVSS Practical use of More ❯

key lifecycle management, advanced threat modelling, SOC operations, securing microservices and APIs, DevSecOps best practices, vulnerability scanning, tools, approaches, vulnerability patching and vendor management for security Strong experience in penetration testing and hands-on coding in at least one of the following: JavaScript, Java, Python. Some other highly desirable skills include: Experience in hands-on configuration, deployment and More ❯