SC or NATO Cleared Pen Testers needed! 100% Remote - OUTSIDE IR35 Contract iO Associates are currently looking for x3 SC or NATO Cleared Penetration Testers to join a 12 month contract (OUTSIDE IR35) with a likely 12 month extension starting in January. The client is offering up to £400 a day (Outside IR35). This role is 100% remote … will consist of roughly two sprints a month. Here's what we're looking for: Extensive knowledge and experience (at least 3 years) in the following areas: * Web application penetrationtesting * IT infrastructure penetrationtesting * Network security architecture design * Assessing security vulnerabilities within OS, software, protocols & networks * Knowledge in system and network administration of UNIX and … Windows systems * Use of penetrationtesting tools, techniques, and recognized testing methodologies * Scripting skills in at least one of the following: Python, Go, PowerShell, Shell (bash, ksh, csh) Desirable Experience and Education: * Professional qualifications: OSCP, OSCE, OSWE, GPEN, Crest Certified Web Application Tester, GXPN, GWAPT or equivalent * Familiarity with risk analysis methodologies. * Prior experience of working in More ❯
City of London, London, United Kingdom Hybrid/Remote Options
Vanquish Technologies Limited
Simulation (BAS) platforms to build and validate threat scenarios. Strong understanding of adversary tactics, techniques, and procedures (TTPs), MITRE ATT&CK framework, and threat modeling. Hands-on experience with penetrationtesting tools such as Metasploit Framework, Burp Suite, Kali Linux, and Pentera. Experience producing threat reports and briefings. Certifications Required or Preferred: Years of relevant experience: 8+ years … of experience in threat intelligence, cybersecurity operations, or penetration testing. Proven ability to collaborate across technical teams, including Red/Blue teams and SO Industry Experience Required or Preferred: Key Soft Skills (e.g Communication, leadership, stakeholder management): Analytical and detail-oriented with a strong sense of curiosity. Collaborative and team-focused, with a proactive approach to cross-functional engagement. … and analyze the global threat landscape to identify emerging risks, adversary tactics, and trends relevant to the organizations business and technology environment. Collaborate with Red Team, Blue Team, and PenetrationTesting teams to integrate threat intelligence into testing scenarios using Breach & Attack Simulation (BAS) platforms and enhance defensive strategies. Act as a liaison between threat intelligence and More ❯
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. You'll be joining a specialist team responsible for delivering structured penetration tests, vulnerability assessments and security design reviews. Working within a defined AGILE sprint model, you will plan, execute and report on testing activities, producing clear technical findings, risk assessments and remediation guidance. Strong communication skills are essential, as you'll deliver briefs to both technical teams and senior stakeholders. The role requires hands-on experience with modern penetrationtesting tools and recognised methodologies, along with the ability to identify and exploit vulnerabilities across operating systems, networks, applications, and protocols. A background in scripting (Python, Go, PowerShell or shell) is highly desirable. Key Requirements: Strong experience in web and infrastructure penetrationtesting Proficiency with offensive security tooling and methodologies Ability to produce clear, structured, executive More ❯
SP800 series, CSF). Conduct risk assessments and vulnerability management activities. Maintain robust security controls across enterprise assets, software, networks, and applications. Support incident response and recovery processes, including penetrationtesting and audit log management. Deliver training and awareness programs to enhance the organizations security posture. Collaborate with internal and external stakeholders to maintain compliance and manage third … analytical mindset with strong problem-solving skills. Technical Skills: Comprehensive knowledge of security controls, including: Data Protection, Account Management, and Access Control Management. Continuous Vulnerability Management and Incident Response. PenetrationTesting and Security Awareness Training. Secure Configuration and Network Monitoring. More ❯
Birmingham, West Midlands, United Kingdom Hybrid/Remote Options
Crimson
processes, handle support requests, and investigate breaches as required. Monitor external security environments, identify emerging threats, and communicate findings to leadership when necessary Plan and coordinate vulnerability assessments and penetrationtesting, providing expert advice on tools and techniques. Support risk assessments, recommend mitigations, and ensure compliance with security policies and standards. Drive improvements within the external Security Operations More ❯
Luton, Bedfordshire, South East, United Kingdom Hybrid/Remote Options
Crimson
processes, handle support requests, and investigate breaches as required. Monitor external security environments, identify emerging threats, and communicate findings to leadership when necessary Plan and coordinate vulnerability assessments and penetrationtesting, providing expert advice on tools and techniques. Support risk assessments, recommend mitigations, and ensure compliance with security policies and standards. Drive improvements within the external Security Operations More ❯