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9 penetration tester jobs found

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penetration tester
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Outside Spy
Dec 02, 2025
6 Months or more
Penetration Tester at TechShack, United Kingdom, 6 Months, £Contract Rate
Outside Spy United Kingdom
SC Cleared Penetration Tester - 6 months Rolling - Fully Remote - £500pd Outside IR35 I'm working with a consultancy looking to engage multiple SC Cleared Penetration Testers for a long term project. Skills: - Web Application and Infrastructure Penetration Testing experience - Network Security Design - UNIX/Windows - Scripting: Python/Powershell/Go - Active SC Clearance is essential This role has a 1 stage interview process. SC Cleared Penetration Tester - 6 months Rolling - Fully Remote - £500pd Outside IR35
Outside Spy
Dec 01, 2025
Duration not stated
Penetration Tester - Outside IR35 at Experis UK, London, £Contract Rate
Outside Spy London, UK
Role: Penetration Tester Duration: 12 month Contract Pay: Up to £500 per day (Outside IR35) Location: Fully Remote Excellent long term contract for an experienced Penetration Tester to support a large-scale international security programme, delivering high-quality offensive security assessments across applications, infrastructure, and networks click apply for full job details
Outside Spy
Nov 28, 2025
Duration not stated
SC Cleared Penetration Tester at IF Recruitment Ltd, Remote, £Contract Rate
Outside Spy Remote (Remote, UK)
The Role: Providing Web, infrastructure and application-level penetration testing, including but not limited to COTS software and NOTS/GOTS software, following clearly defined methodologies. Participating in kick-off meetings with stakeholders and technical points of contact in order to identify requirements for testing. Following the documented procedures and workflows outlined by the technical leads. Attending team meetings if required. Briefing, at both executive and technical levels, on security reports and testing outcome, including at flag officer level. In case of new vulnerabilities detected for COTS software, following the Responsible Disclosure Process and following-up with vendors and stakeholders. Providing security design reviews to ensure compliance with the client's policies and directives. In co-ordination with the Technical Lead of the Penetration testing team, ensuring proactive collaboration and coordination with internal and external...
Outside Spy
Dec 02, 2025
Duration not stated
IT Security Auditor at Robert Half, Remote, £Contract Rate
Outside Spy Remote
Robert Half are working with our sister firm Protiviti, to recruit for multiple experienced, hands-on Security IT Auditors to work for a major technology provider. You'll be embedded in small, technical teams to directly execute critical security audits of network and infrastructure systems, focusing on practical, technical evaluation and remediation of real-world risks. Role: Lead and perform end-to-end cyber security audits across diverse network architectures, including both 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 infrastructure, cloud engineering, and SOC teams to collect...
Outside Spy
Dec 02, 2025
Duration not stated
IT Security Auditor at Robert Half, City of London, £500-£700 per day
£500 - £700 per day
Outside Spy City of London, London, UK
Robert Half are working with our sister firm Protiviti, to recruit for multiple experienced, hands-on Security IT Auditors to work for a major technology provider. You'll be embedded in small, technical teams to directly execute critical security audits of network and infrastructure systems, focusing on practical, technical evaluation and remediation of real-world risks. Role: Lead and perform end-to-end cyber security audits across diverse network architectures, including both 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 infrastructure, cloud engineering, and SOC teams to collect evidence,...
Outside Spy
Dec 02, 2025
up to 6 Months
IT Security Auditor at Robert Half, England, £500-£700 per day
£500 - £700 per day
Outside Spy England, UK
Full job description Robert Half are working with our sister firm Protiviti, to recruit for multiple experienced, hands-on Security IT Auditors to work for a major technology provider. You'll be embedded in small, technical teams to directly execute critical security audits of network and infrastructure systems, focusing on practical, technical evaluation and remediation of real-world risks. Role: Lead and perform end-to-end cyber security audits across diverse network architectures, including both 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 infrastructure, cloud...
Outside Spy
Dec 02, 2025
up to 6 Months
IT Security Auditor at Robert Half, City of London, 3 Months, £500-£700 per day
£500 - £700 per day
Outside Spy City of London, UK
Robert Half are working with our sister firm Protiviti, to recruit for multiple experienced, hands-on Security IT Auditors to work for a major technology provider. You'll be Embedded in small, technical teams to directly execute critical security audits of network and infrastructure systems, focusing on practical, technical evaluation and remediation of real-world risks. Role: Lead and perform end-to-end cyber security audits across diverse network architectures, including both 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 infrastructure, cloud engineering, and SOC teams to collect evidence,...
Outside Spy
Dec 02, 2025
Duration not stated
IT Security Auditor at Robert Half, London, £Contract Rate
Outside Spy London, UK
Robert Half are working with our sister firm Protiviti, to recruit for multiple experienced, hands-on Security IT Auditors to work for a major technology provider. You 'll be embedded in small, technical teams to directly execute critical security audits of network and infrastructure systems, focusing on practical, technical evaluation and remediation of real-world risks. Role: Lead and perform end-to-end cyber security audits across diverse network architectures, including both 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 infrastructure, cloud engineering, and SOC teams to...
Outside Spy
Nov 26, 2025
Duration not stated
Typescript Engineer at Harnham - Data & Analytics Recruitment, London, £Contract Rate
Outside Spy London, UK
TypeScript Engineer £500- £560 per day Outside IR35 1 day onsite - London We 're working with a large international travel and transport organisation that is modernising its digital ecosystem following the consolidation of multiple business units. The company is investing heavily in next-generation data and middleware platforms, and they 're looking for a TypeScript Engineer to help shape the services and tooling behind this transformation. The team 's mission is to replace legacy systems with clean, event-driven services and provide consistent, reliable data to applications across the business - from customer-facing products to operational systems. The Role You 'll be joining a multidisciplinary engineering team focused on building backend and occasionally frontend components using modern TypeScript across Node.js and React/Next.js. The role centres on developing APIs, event-driven services, and internal tools that support large-scale,...
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