Penetration Tester

Added 23/09/2026

We are seeking a skilled Penetration Tester to identify, assess, and help remediate security weaknesses across applications, infrastructure, networks, cloud environments, and supporting technologies. You will plan and conduct authorised penetration tests, vulnerability assessments, and security reviews using a combination of manual techniques and industry-standard tools. The role will involve simulating realistic attack scenarios while maintaining a methodical, evidence-based approach and ensuring that all testing is performed safely, professionally, and within agreed rules of engagement. Key responsibilities include scoping and preparing test engagements, reviewing technical documentation, performing reconnaissance, identifying vulnerabilities, and validating their potential business impact. You will exploit weaknesses...

Senior Penetration Tester - CHECK Team Leader

Added 30/09/2026

We are seeking a Senior Penetration Tester to lead a CHECK team and deliver high-quality security assessments across a varied portfolio of applications, infrastructure, networks and cloud environments. You will take ownership of engagements from scoping and planning through to testing, reporting and client debriefs, ensuring that work is completed to a consistently high technical and professional standard. The role will involve selecting appropriate methodologies, identifying and exploiting vulnerabilities safely, assessing business impact, and producing clear, accurate reports that support effective remediation. As Team Leader, you will provide technical direction and mentoring to penetration testers, review test plans and findings,...

Senior Penetration Tester

Added 23/09/2026

We are seeking an experienced Senior Penetration Tester to identify, assess, and help remediate security vulnerabilities across complex technology environments. In this role, you will plan and deliver penetration tests against web applications, APIs, mobile applications, networks, cloud platforms, infrastructure, and wireless systems. You will define testing objectives and scope, select appropriate methodologies, conduct manual and automated assessments, and safely validate vulnerabilities while minimising operational impact. You will also support threat modelling, security reviews, red team activities, and bespoke assessments based on emerging attack techniques. You will produce clear, accurate, and commercially focused reports that explain technical findings, business impact,...

Senior Penetration Tester

Added 15/09/2026

We are seeking a Senior Penetration Tester to lead and deliver high-quality security assessments across applications, infrastructure, cloud environments, networks and emerging technologies. You will plan and execute penetration tests, vulnerability assessments and red-team engagements, using a risk-based approach to identify weaknesses that could affect confidentiality, integrity or availability. The role will involve scoping engagements, defining test methodologies, reviewing technical documentation, conducting reconnaissance and exploitation activities, and validating remediation efforts. You will also be expected to maintain accurate evidence, assess business impact and communicate findings clearly to both technical and non-technical stakeholders. As a senior member of the security testing...

Senior Penetration Tester

Added 15/09/2026

We are seeking an experienced Senior Penetration Tester to assess the security of complex applications, infrastructure, networks, cloud environments, and connected technologies. You will plan and deliver penetration tests across web and mobile applications, APIs, internal and external networks, wireless environments, and adversary simulation engagements. The role involves identifying vulnerabilities, validating their potential impact, demonstrating realistic attack paths, and providing clear, actionable recommendations that support effective remediation. You will lead engagements from scoping and rules of engagement through reconnaissance, testing, exploitation, evidence collection, and reporting. Responsibilities include developing test plans, selecting appropriate tools and methodologies, conducting manual assessments beyond automated...

Senior Penetration Tester - CTM

Added 08/09/2026

We are seeking a Senior Penetration Tester to lead and deliver sophisticated security assessments across applications, infrastructure, cloud environments, networks and emerging technologies. You will be responsible for planning, scoping and executing penetration tests, red-team exercises and vulnerability assessments, identifying weaknesses that could be exploited by real-world attackers, and clearly communicating the associated business risks. The role will involve working with technical and non-technical stakeholders to validate findings, provide practical remediation guidance and support improvements to overall security resilience. Key responsibilities include developing test plans and rules of engagement; conducting manual and automated testing; exploiting vulnerabilities safely and responsibly; reviewing...

Penetration Tester

Added 10/12/2026

We are seeking a skilled Penetration Tester to identify, assess and help remediate security vulnerabilities across applications, infrastructure, networks and cloud environments. You will plan and deliver authorised penetration tests, vulnerability assessments and red-team activities, using a combination of manual techniques and industry-standard tools. Your work will help strengthen security controls, reduce operational risk and provide clear, practical guidance to technical and non-technical stakeholders. Responsibilities will include scoping and conducting web application, API, mobile, network, wireless and internal infrastructure tests; researching emerging vulnerabilities and attack techniques; validating findings and assessing their potential business impact; and maintaining accurate evidence throughout each...

Cyber Essentials Plus Assessor & Penetration Tester - UK (Remote, with occasional onsite client work)

Added 22/10/2026

We are seeking a Cyber Essentials Plus Assessor and Penetration Tester to join a specialist cybersecurity team supporting organisations across the UK. This is a remote role with occasional onsite client work, so candidates must be comfortable working independently while building trusted relationships with technical and non-technical stakeholders. You will deliver Cyber Essentials Plus assessments from planning through to final reporting, reviewing client environments against the scheme requirements and identifying areas requiring remediation. Your responsibilities will include scoping engagements, conducting technical verification activities, assessing devices, user accounts, software, firewalls and security configurations, gathering and evidencing findings, and communicating clear, practical...

Cyber Security Consultant / Penetration Tester

Added 22/10/2026

We are seeking a Cyber Security Consultant / Penetration Tester to assess, challenge and strengthen the security of systems, applications, networks and infrastructure. This role will suit an experienced security professional who can combine strong technical capability with the confidence to communicate findings clearly to both technical and non-technical audiences. You will plan and deliver penetration tests, vulnerability assessments and security reviews across web applications, mobile applications, APIs, internal and external networks, cloud environments and wireless infrastructure. Responsibilities will include defining testing scope, identifying vulnerabilities, validating exploitability, assessing business impact and producing accurate, evidence-based reports. You will also provide practical...

Penetration Tester

Added 22/10/2026

We are seeking an experienced Penetration Tester to assess the security of applications, infrastructure, networks and cloud environments. You will identify vulnerabilities, validate their potential impact and provide clear, practical recommendations to support effective remediation. This role will involve working with technical and non-technical stakeholders, helping to strengthen security controls and reduce organisational risk. Your responsibilities will include planning and delivering penetration tests across web applications, APIs, mobile applications, internal and external networks, wireless environments and cloud platforms. You will conduct reconnaissance, vulnerability analysis and exploitation activities using both established methodologies and creative testing techniques. You will also review source...

Cyber Security Consultant / Penetration Tester

Added 13/10/2026

We are seeking a Cyber Security Consultant / Penetration Tester to assess, improve and strengthen the security of applications, infrastructure, networks and cloud environments. You will work with a range of stakeholders to identify vulnerabilities, evaluate risk and provide practical recommendations that support resilient, secure business operations. The role offers the opportunity to contribute across the full penetration testing lifecycle, from scoping and reconnaissance through to exploitation, reporting and remediation support. Your responsibilities will include planning and delivering penetration tests across web applications, APIs, mobile applications, internal and external networks, wireless environments, cloud platforms and infrastructure. You will conduct vulnerability...

Cyber Security Consultant (Penetration Tester)

Added 09/10/2026

We are seeking a Cyber Security Consultant (Penetration Tester) to assess the security of applications, infrastructure, networks and cloud environments. You will work with clients and internal stakeholders to identify vulnerabilities, evaluate business impact and provide practical recommendations that improve overall security resilience. The role requires strong technical capability, curiosity and the confidence to communicate complex findings clearly to both technical and non-technical audiences. Your responsibilities will include planning and delivering authorised penetration tests across web applications, APIs, mobile applications, internal and external networks, wireless environments, cloud platforms and social engineering engagements where appropriate. You will conduct reconnaissance, vulnerability analysis...

Penetration Tester

Added 08/10/2026

We are seeking a skilled Penetration Tester to assess the security of applications, infrastructure, networks, cloud environments and connected systems. In this role, you will plan and conduct authorised security assessments, identify vulnerabilities and potential attack paths, and provide clear, evidence-based recommendations to improve the organisation’s security posture. You will work closely with security, engineering, infrastructure and technology teams to validate findings, support remediation activities and help reduce operational risk. Your responsibilities will include defining testing scope and objectives, carrying out reconnaissance and vulnerability assessments, and performing manual and automated penetration testing across web applications, APIs, mobile platforms, internal and...

Penetration Tester

Added 08/10/2026

We are seeking a skilled Penetration Tester to assess the security of applications, infrastructure, networks and cloud environments. In this role, you will plan and deliver authorised security assessments that identify vulnerabilities, validate business risk and help strengthen defensive controls. You will work with technical and non-technical stakeholders to understand testing objectives, define scope and ensure all activities are conducted safely, ethically and in line with agreed rules of engagement. Your responsibilities will include performing web, mobile, API, network, wireless and cloud penetration tests; conducting vulnerability analysis and manual exploitation; reviewing source code and configurations where appropriate; and researching emerging...

Penetration Tester

Added 08/10/2026

We are seeking a skilled Penetration Tester to identify, assess, and help remediate security weaknesses across applications, infrastructure, networks, cloud environments, and connected devices. You will plan and deliver authorised security assessments using a combination of manual testing, automated tools, threat modelling, and industry-standard methodologies. The role will involve working with technical and business stakeholders to understand systems, define testing objectives, and provide clear, evidence-based findings that support informed risk decisions. Key responsibilities include conducting web application, API, mobile, internal network, external network, wireless, cloud, and social engineering assessments where appropriate. You will validate vulnerabilities, assess exploitability and business impact,...