26 to 50 of 85 Offensive Security Jobs in England

Security Testing Practice Lead London (Hybrid 23 days per week) £85,000£100,000 DOE + Bonus + Benefits Lead a Growing Security Testing Practice We're looking for an experienced Security Testing Practice Lead to join a fast-growing cybersecurity consultancy. This is an opportunity … lead a talented team, shape the future of our Offensive Security services and remain hands-on with complex testing engagements, including emerging AI and LLM security testing. Reporting to the Managing Director, you'll combine technical leadership, people management and client engagement to ensure exceptional service delivery ...

Security Testing Practice Lead London (Hybrid 23 days per week) £85,000£100,000 DOE + Bonus + Benefits Lead a Growing Security Testing Practice We're looking for an experienced Security Testing Practice Lead to join a fast-growing cybersecurity consultancy. This is an opportunity … lead a talented team, shape the future of our Offensive Security services and remain hands-on with complex testing engagements, including emerging AI and LLM security testing. Reporting to the Managing Director, you'll combine technical leadership, people management and client engagement to ensure exceptional service delivery ...

Date posted: Jul. 11, 2026 Location: Cambridge, United Kingdom Category: Software Engineering Job Overview: We are looking for an expert in security assessment of firmware, drivers, and operating systems to join the company's Product Security team. In this role, you will lead the company's approach … offensive software security with specific focus on fuzzing and penetration testing. Responsibilities: Develop software security test framework and processes across the company's firmware, drivers and system software Lead the company's internal penetration test strategy for software products Schedule, prioritise and conduct software security tests ...

external market. Exceptions above the standard range are managed through governance controls to protect internal equity. Your Impact Leonardo UK is seeking a Senior Offensive Security Consultant to join the Cyber & Security Solutions Division team. This role is focused on leading, directing and continuously improving the Leonardo … Team, ensuring the effective management, and delivery of adversary simulation, purple team, and penetration testing engagements. As a Senior Offensive Security Consultant at Leonardo UK, you will be responsible for leading the Red Team capability while also delivering as part of a Red Ream Delivery Cell to external ...

qualify for diverse spending goals and are committed to economic inclusion. Find out how TripleLift raises up the programmatic ecosystem at triplelift.com.OverviewThe Senior Application Security Engineer plays a critical role in driving secure software development and application security maturity within TripleLift's Engineering and Security organization, directly … platforms and the trust our publishers and advertisers place in us. In this position, you will partner closely with Engineering, Platform, Cloud Infrastructure, and Security teams to shape secure coding practices, application security tooling, vulnerability remediation, and CI/CD security, ensuring security is embedded into ...

Continuous Threat Exposure Management (CTEM). The HackerOne Platform unites agentic AI solutions with the ingenuity of the world’s largest community of security researchers to continuously discover, validate, prioritize, and remediate exposures across code, cloud, and AI systems. Through solutions like bug bounty, vulnerability disclosure, agentic pentesting … teaming, and code security, HackerOne delivers measurable, continuous reduction of cyber risk for enterprises. Industry leaders, including Anthropic, Crypto.com, General Motors, Goldman Sachs, Lufthansa, Uber, UK Ministry of Defence, and the U.S. Department of Defense, trust HackerOne to safeguard their digital ecosystems. HackerOne was recognized in Gartner’s Emerging ...

Technical Vulnerability Management Engineer (Offensive Security/Penetration Testing) London (3 days onsite/2 days remote) Up-to 450 per day PAYE equivalent (Inside IR35) Initial 3 months with strong expectation of long-term extension To start ASAP About the role We're supporting … world's leading technology companies in hiring a contractor to join their Information Security Assurance team. This is an excellent opportunity for someone with a background in penetration testing or offensive security who enjoys understanding how vulnerabilities work and helping engineering teams reduce security risk ...

Technical Vulnerability Management Engineer (Offensive Security/Penetration Testing) London (3 days onsite/2 days remote) Up-to £450 per day PAYE equivalent (Inside IR35) Initial 3 months with strong expectation of long-term extension To start ASAP About the role We're supporting … world's leading technology companies in hiring a contractor to join their Information Security Assurance team. This is an excellent opportunity for someone with a background in penetration testing or offensive security who enjoys understanding how vulnerabilities work and helping engineering teams reduce security risk ...

Amazon, security is central to maintaining customer trust and delivering delightful customer experiences. Our organization is responsible for creating and maintaining a high bar for security across all of Amazon’s products and services. We offer talented security professionals the chance to accelerate their careers with opportunities … build experience in a wide variety of areas including cloud, devices, retail, entertainment, healthcare, operations, and physical stores.The NextGen Security Automation team is looking for a skilled and driven Senior Security Engineer to create autonomous security solutions that protect Amazon’s customers. As a security engineer ...

Senior Cloud Security & Vulnerability Analyst London | Hybrid (4 days onsite)12 Months Contract! Up to £450/day PAYE + 12.07% Holiday Pay Robert Half is recruiting on behalf of a global consulting firm for a Senior Cloud Security & Vulnerability Analyst to join a high-profile engagement. This … focused Threat & Vulnerability Management function, helping assess, prioritise and remediate vulnerabilities across large-scale cloud and enterprise environments. We're seeking a hands-on security professional with strong cloud security expertise, vulnerability management experience and the ability to engage effectively with engineering and infrastructure teams. Key Experience Required ...

impact, at an inflection point in history that won’t reappear, we’d like to talk. THE ROLE We’re hiring our first Product Security Engineer. Security Engineering at ARD blends sharp technical skill, an attacker's mindset, and tangible real-world stakes. You\'ll operate across … products we field — spotting and cutting down the risks that actually matter. The systems we run and the data we hold call for a security approach that\'s thorough, flexible, and woven into everything we do. Your work will directly underpin the trust partners, customers, and the public place ...

Senior Penetration Tester LSEG is seeking a senior penetration tester to join our internal offensive security team. This role is hands‐on and deeply technical, responsible for planning and driving penetration tests across a wide range of systems and applications. The successful candidate will be a skilled offensive security professional with a passion for uncovering vulnerabilities and improving security posture through thorough testing and teamwork. Key Responsibilities Conduct in‐depth penetration tests on applications, infrastructure, and cloud environments. Take full ownership of assigned penetration testing engagements end‐to‐end and deliver with limited oversight. Compile ...

First. Learn Fast Job Description:As a Penetration Tester within the internal cybersecurity team, you’ll play a key role in identifying and mitigating security risks across the organisation’s digital landscape. This position requires hands-on experience in offensive security and a deep understanding of network … application, and cloud-based vulnerabilities.You’ll be responsible for conducting thorough penetration tests, simulating real-world attacks, and delivering actionable insights to both security and development teams. Collaboration and continuous learning are central to the role, ensuring our defences stay ahead of emerging threats.Please note this is a hybrid ...

Learn Fast **Job D****escription****:**As a Penetration Tester within the internal cybersecurity team, you’ll play a key role in identifying and mitigating security risks across the organisation’s digital landscape. This position requires hands-on experience in offensive security and a deep understanding of network … application, and cloud-based vulnerabilities.You’ll be responsible for conducting thorough penetration tests, simulating real-world attacks, and delivering actionable insights to both security and development teams. Collaboration and continuous learning are central to the role, ensuring our defences stay ahead of emerging threats.Please note this is a hybrid ...

seeking a Penetration Tester to join a growing Offensive Security team within a specialist cyber security consultancy. This is an exciting opportunity to join at a time of significant investment and growth, helping to strengthen existing testing services while contributing to the development of new capabilities across … areas such as Red Teaming, Operational Technology (OT), Threat-Led Security Testing and emerging technologies. The successful candidate will play a key role in delivering penetration testing engagements, supporting process improvement initiatives, and helping to build a scalable and mature testing function. This position offers excellent opportunities for professional ...

committed to delivering high-quality solutions that drive growth and efficiency. Due to continued growth, they are keen to appoint an experienced a Cyber Security Specialist on a 6-month contract to be based out of the Birmingham offices on a hybrid basis. Cyber Security Specialist: Duties Adequate … Implementation of security controls - XDR Escalation pint for security tickets raised in ITSM and Incident Management Portals Implementation/Operation of InfoSec processes, Threat Hunting, detection, monitoring and incident response Delivery of cyber security projects, implementation of new cyber security tooling and threat informed system projects ...

Security Engineer (JavaScript/TypeScript) London/Remote to 80kDo you have expertise with web security combined with strong JavaScript/TypeScript coding skills You could be progressing your career at a global leader in Computer Vision, AI and biometric identity, whose technology protects governments, critical infrastructure … some of the world's largest enterprises against identity fraud, deepfakes and sophisticated cyber threats. As a Web Security Engineer you'll collaborate closely with the web development team to ensure security is at the centre of all web based applications. Joining a specialist security team ...

next step in your career.The roleThe Adversary Emulation (AE) team is G-Research’s internal Red Team and a core part of the wider Security Assurance function. The team provides the Board and Executive Management Team with independent insight into the security of our most important information, directly … informing security decisions at the highest levels of the business.AE operations range from a few weeks to more than a full year, with each engagement designed to emulate different internal and external threat actors and test a broad range of systems, processes and assumptions. The variety and complexity ...

Description:We are looking for a hands-on Hardware Security Engineer to support the security of SoC hardware platforms. This role is part of the Arm Product Security team and focuses on identifying problems in silicon level security features, understanding their impact, and working in partnership … with architecture and silicon teams to help improve the overall security of our platforms.In this role, you will chip in through detailed technical analysis, proof-of-concept demonstrations, and tooling that supports the assessment and improvement of hardware security features across sophisticated SoC platforms. You will work ...

Join us as a Security Enterprise Architect at Barclays, where you will play a strategic role in defining and evolving the bank’s enterprise security architecture across Endpoint and IAM domains. You will work closely with architecture, engineering, cyber security and business stakeholders to design secure technology … solution and influence long-term security strategy The role will include defining enterprise security architecture principles and target-state security capabilities, providing architectural guidance across major technology and working closely with engineering and security teams to ensure solutions are secure, scalable, and aligned with regulatory standards. ...

Description: We are looking for a hands‐on Hardware Security Engineer to support the security of SoC hardware platforms. This role is part of the Arm Product Security team and focuses on identifying problems in silicon level security features, understanding their impact, and working in partnership … with architecture and silicon teams to help improve the overall security of our platforms. In this role, you will chip in through detailed technical analysis, proof‐of‐concept demonstrations, and tooling that supports the assessment and improvement of hardware security features across sophisticated SoC platforms. You will work ...

Role: Cyber Security AnalystLocation: London/Manchester/BristolSalary: Competitive salary and package dependent on experienceCareer Level: SpecialistPlease Note: Any offer of employment is subject to satisfactory BPSS and SC security clearance which typically requires 5 years continuous UK address history usually including no periods of 30 consecutive … above information relates to a specific client requirementOur Cyber Practice is a fast-growing community of industry leading experts. The practice covers Assurance, Compliance, Security Operations (SecOps), Offensive Security and Security Research. It is critical that the relevance and quality of the services that we provide ...

Role: Cyber Security AnalystLocation: London/Manchester/BristolSalary: Competitive salary and package dependent on experienceCareer Level: SpecialistPlease Note: Any offer of employment is subject to satisfactory BPSS and SC security clearance which typically requires 5 years continuous UK address history usually including no periods of 30 consecutive … above information relates to a specific client requirementOur Cyber Practice is a fast-growing community of industry leading experts. The practice covers Assurance, Compliance, Security Operations (SecOps), Offensive Security and Security Research. It is critical that the relevance and quality of the services that we provide ...

NegotiableLondon, EnglandPermanentAbout the RoleWe are seeking a versatile and senior AI Staff Security Engineer to serve as the linchpin of our security posture. You will be responsible for moving our organization toward a highly proactive security stance by engineering automated workflows that replace manual overhead.This role will … Response (AIDR) solutions to protect proprietary models and systems from novel threats like prompt injection, data poisoning, and model inversion/extraction.Automate critical security workflows using Agentic/SIEM integration to achieve high operational velocity and enable rapid response to millisecond attack speeds generated by autonomous adversary AI.Execute regular ...

About the Role We are seeking a versatile and senior AI Staff Security Engineer to serve as the linchpin of our security posture. You will be responsible for moving our organization toward a highly proactive security stance by engineering automated workflows that replace manual overhead. This role … Response (AIDR) solutions to protect proprietary models and systems from novel threats like prompt injection, data poisoning, and model inversion/extraction. Automate critical security workflows using Agentic/SIEM integration to achieve high operational velocity and enable rapid response to millisecond attack speeds generated by autonomous adversary AI. ...