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A leading AI cybersecurity firm in the UK is seeking a skilled Penetration Tester to enhance security across the digital landscape.

NTT DATA, a global leader in security services, is seeking a Offensive Security Tester to join its UK Security Practice. The ideal candidate will have a strong background in offensive security, a deep understanding of attack techniques, and excellent communication skills to deliver impactful results

Perform various types of security testing, including network penetration, web application, mobile security assessments, and social engineering. Displays a keen interest in security principles and protocols. In this position, your duties will include overseeing client engagements, conducting security

You’ll work at the intersection of offensive security, AI safety, and product development, collaborating with cross‑functional teams to harden our systems against evolving threats. This role is ideal for those who thrive in dynamic environments, where creativity, technical depth, and a passion f

You’ll define how security testing is delivered, shape the service portfolio, and ensure consistent, high‑quality outcomes across all engagements while working closely with senior leadership on growth. Shape and expand a modern, in‑demand security testing portfolio. You’ll take ownership of

Are you an experienced Senior Offensive Security Engineer that wants to work with cutting-edge cybersecurity technologies and contribute to enhancing our overall security posture? At Ivanti, we work passionately and authentically, striving to win together and make a real impact for our customers and

A global leader in security services in the UK is seeking an Offensive Security Tester to conduct penetration tests and enhance client security. The ideal candidate will have strong offensive security skills and experience in vulnerability analysis.

A cybersecurity firm is seeking a Senior Software Developer to tackle complex security challenges. The ideal candidate is experienced in Python, C, and Rust, with a background in offensive security. Strong mentoring skills and a high-level security clearance are required for this role.

A leading security technology firm in London is seeking a Senior Security Software Research Engineer to find vulnerabilities in internet-deployed software and guide security research outcomes.

A leading cybersecurity firm in the United Kingdom is seeking an experienced professional to lead offensive security operations against AI and ML systems. You will collaborate with teams to monitor and respond to anomalous AI behavior, shaping innovative detection strategies for future challenges in

As a Offensive Security Consultant, with a focus on Infrastructure testing, you will perform formal and comprehensive penetration testing assessments, producing full written reports to appropriate standards and within agreed deadlines. Relevant security qualifications (such as OSCP, CREST CRT, OSEP,

A global leader in security services is seeking an Offensive Security Tester to conduct penetration testing and enhance client security postures. The ideal candidate will have 3-5 years of experience in security roles, strong communication skills, and preferred certifications like OSCP or CEH. This

NTT DATA, a global leader in security services, is seeking a CREST-certified Offensive Security Tester to join its UK Security Practice. The ideal candidate will have a strong background in offensive security, a deep understanding of attack techniques, and excellent communication skills to deliver i

The role involves assessing cybersecurity measures, conducting risk evaluations, and collaborating with various teams to ensure robust information security practices. A leading financial institution in Greater London is looking for a cybersecurity expert to join their team.

Relevant security qualifications (such as OSCP, CREST CRT, OSEP, CCT or relevant Social Engineering exams/training). A passion for security and networks.

The ideal candidate will have over 7 years of offensive security experience and deep understanding of AI/ML security risks. A leading AI technology firm in Greater London is seeking a Security Researcher to enhance the security of its innovative AI products. Responsibilities include vulnerability hu

The ideal candidate will possess deep technical expertise in offensive security and strong leadership abilities. This role involves designing sophisticated engagements, mentoring junior operators, and ensuring robust security across banking environments.

Senior Offensive Security Analyst. Collaborate with internal security and engineering teams to support the standardisation of API security practices across the organisation. The role will exclusively focus on identifying weaknesses in authentication and authorisation implementations across multiple

This fully remote role is ideal for a player-coach who enjoys tackling offensive security problems. Xact Placements Limited is seeking an Engineering Lead (Cyber) for a high-growth cybersecurity scale-up. You will lead the Cyber Engineering team, guiding the future direction and architecting the sec

A leading cybersecurity firm in the United Kingdom seeks a Senior Offensive Security Engineer to assess application, network, and system security through simulated cyberattacks. The ideal candidate has at least 5 years of cybersecurity experience, is familiar with penetration testing, and holds rele

A leading cybersecurity firm in the United Kingdom is looking for an experienced offensive security professional to discover and exploit vulnerabilities. Don't miss this unique chance to redefine offensive security. You will work collaboratively, using your deep understanding of security to protect

Interest in learning and staying current with offensive security technologies. Develop your offensive security skillset across varied, real-world environments. Conduct penetration testing and offensive security engagements across networks, applications and platforms.

A leading UK cyber security consultancy is looking for a Cyber Security Consultant to join their Offensive Security team. You will be responsible for delivering high-quality security assessments, producing detailed reports, and mentoring junior team members.

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