26 to 50 of 73 Red Team Jobs in the UK

adversary simulation teams, taking ownership of oversight and assurance responsibilities. Key responsibilities: Conduct in-year sampling of technical reports to ensure adherence to agreed standards Coach and support standalone Team Leaders, particularly those without peer-level technical support Provide ongoing guidance and technical input to the cyber assurance project team Key experience: Strong background as a Senior Penetration … Tester with proven experience reviewing and assuring the output of others Experience within adversary simulation or red team operations Familiarity with formal assessment or examiner roles for pen testing qualification bodies (e.g., CHECK, CREST, etc.) Excellent stakeholder communication and mentoring skills Active UK security clearance (essential) If this position is of interest, please apply here or contact More ❯

adversary simulation teams, taking ownership of oversight and assurance responsibilities. Key responsibilities: Conduct in-year sampling of technical reports to ensure adherence to agreed standards Coach and support standalone Team Leaders, particularly those without peer-level technical support Provide ongoing guidance and technical input to the cyber assurance project team Key experience: Strong background as a Senior Penetration … Tester with proven experience reviewing and assuring the output of others Experience within adversary simulation or red team operations Familiarity with formal assessment or examiner roles for pen testing qualification bodies (e.g., CHECK, CREST, etc.) Excellent stakeholder communication and mentoring skills Active UK security clearance (essential) If this position is of interest, please apply here or contact More ❯

Lead junior testers, review reports, and ensure technical accuracy. Deliver clear, comprehensive documentation and present findings to clients. Innovate and contribute to new tools, methodologies, and red team capabilities. Collaborate across security teams and maintain strong client relationships. Support project delivery and manage multiple testing engagements. Requirements: Extensive experience in penetration testing and ethical hacking. Certifications such … as OSCP, CRT, CSTM, or equivalent. Must hold Check Team Member (CTM) status Proficiency with offensive security tools and techniques. Strong communication, leadership, and client-facing skills. Unfortunately this client is unable to offer sponsorship for this role. More ❯

weaknesses, validate controls, and drive real-world resilience across our systems. What You'll Do This is a hands-on leadership role within our Cyber Defence Red Team, focused on simulating real-world attack techniques to identify and close security gaps before they're exploited. Key responsibilities include: Security Testing Strategy: Design and execute end-to-end … scans to advanced adversarial simulations. Vulnerability Identification: Perform External Attack Surface Management (EASM) and threat hunting to uncover systemic weaknesses. Risk Reporting: Analyse and communicate findings to the Blue Team and Compliance, driving remediation efforts. Collaboration & Mentorship: Work closely with IT and development teams to resolve issues and mentor internal testers. Third-Party Oversight: Manage external testing providers and … work will help protect the systems that support veterinary care across continents. Cutting-Edge Challenges: Tackle real-world threats in a complex, distributed business environment. Collaborative Culture: Join a team that values innovation, transparency, and continuous learning. Ready to lead the charge in proactive cyber defense? Apply now and help us stay one step ahead in securing global animal More ❯

and platform enrichment. Your responsibilities will include not only conducting advanced malware reverse engineering and infrastructure emulation but also designing and implementing internal tools and workflows that increase our team's efficiency. You will be expected to develop and formalize novel approaches to dynamic analysis, configuration extraction, and threat behavior modeling. This position entails representing Insikt Group's technical … malware analysis and reverse engineering, mentor senior analysts, and drive the development of new research capabilities without subject-matter limitations. Track and analyze the development of red team tooling Develop network and host-based detection rules (YARA, Snort, and Sigma) to detect APT and cybercriminal campaigns in line with Insikt's research goals Develop analysis and extraction … day. If you need any accommodation or special assistance to navigate our website or to complete your application, please send an e-mail with your request to our recruiting team at Recorded Future is an equal opportunity and affirmative action employer and we encourage candidates from all backgrounds to apply. Recorded Future does not discriminate based on race, religion More ❯

Leverage expertise to uncover potential risks and develop novel mitigation strategies, including data mining, prompt engineering, LLM evaluation, and classifier training. Create and implement comprehensive evaluation frameworks and red-teaming methodologies to assess model safety across diverse scenarios, edge cases, and failure modes. Build automated safety testing systems, generalize safety solutions into repeatable frameworks, and develop efficient code More ❯

solutions, including Microsoft security, compliance and identity services. Managed SOC Managed XDR Cloud Security (M365, Azure, AWS) Managed SIEM (Sentinel + multi vendor) Security Professional Services Pen Testing Red Teaming ISO27001/Cyber Essential Plus Apps/Infra testing You role will be to drive sales across through a mix of marketing campaigns, events and direct selling to More ❯

and security constraints. Nice to Have Experience deploying multi-agent AI systems in real-world environments (e.g., financial services, defence, critical infrastructure). Exposure to runtime security monitoring , red teaming AI systems , or automated defences . Background in causality, system modelling, or probabilistic programming. Why This Role Matters This role is about building AI systems that can be More ❯

and automation frameworks (Jenkins, GitLab CI/CD, Terraform). Familiarity with API security gateways, Web Application Firewalls (WAFs), and Runtime Application Self-Protection (RASP) technologies. Exposure to red teaming, adversary simulation, or threat intelligence focused on application layer attacks. Experience in educating or mentoring engineering teams on secure development best practices. What You'll Gain A critical More ❯

on implementing security controls in GCP based web hosting environment including implanting controls within the software development lifecycle and CI/CD processes and working with the IT Infrastructure team on the security elements of migrating on-premise Windows estate to Azure. You'll lead threat modelling and threat hunting activities to proactively discover potential compromises, work with external … teams on penetration tests and red team engagements and manage SIEM and XDR tooling, establish processes and workflows to support incident response SOC. Location/WFH: You'll join colleagues in the Central London office for two days a week with flexibility to work from home the other three days. Please note you will also be required More ❯

on implementing security controls in GCP based web hosting environment including implanting controls within the software development lifecycle and CI/CD processes and working with the IT Infrastructure team on the security elements of migrating on-premise Windows estate to Azure. You'll lead threat modelling and threat hunting activities to proactively discover potential compromises, work with external … teams on penetration tests and red team engagements and manage SIEM and XDR tooling, establish processes and workflows to support incident response SOC. Location/WFH: You'll join colleagues in the Central London office for two days a week with flexibility to work from home the other three days. Please note you will also be required More ❯

on implementing security controls in GCP based web hosting environment including implanting controls within the software development lifecycle and CI/CD processes and working with the IT Infrastructure team on the security elements of migrating on-premise Windows estate to Azure. You'll lead threat modelling and threat hunting activities to proactively discover potential compromises, work with external … teams on penetration tests and red team engagements and manage SIEM and XDR tooling, establish processes and workflows to support incident response SOC. Location/WFH: You'll join colleagues in the Central London office for two days a week with flexibility to work from home the other three days. Please note you will also be required More ❯

hunting and threat intelligence capabilities. Support and mature security monitoring use cases (SIEM, packet inspection, IOCs). Coordinate cross-functional security incident response with SOC, Threat Intelligence, and Red/Blue teams. Engage with technical and business teams on cyber risk reduction strategies. Contribute to vulnerability management and remediation plans. Required Skills & Experience Proven experience managing DFIR or More ❯

Proactive Security Lead, UK Security Operations link Copy link corporate_fare Google place London, UK Mid Experience driving progress, solving problems, and mentoring more junior team members; deeper expertise and applied knowledge within relevant area. Apply link Copy link Bachelor's degree or equivalent practical experience. 5 years of experience in cybersecurity, with an offensive security (e.g., Red … Preferred qualifications: Certifications in OSCE3, CRTP/CRTE, GIAC GCSA/Kubernetes-related, OSCP, OSCE, CRTO, CISSP, or GIAC (e.g., GPEN, GCTI, GWAPT). Experience designing or executing Purple Team exercises, combining offensive tactics with defensive feedback to drive continuous improvement. Experience with Kubernetes security, including secure cluster configuration, workload hardening, and threat detection in containerised environments. Experience in … executive engagement. Experience with security testing tools and frameworks (e.g., MITRE ATT&CK, Cobalt Strike, Metasploit, Burp Suite, or similar). About the job The UK Security Operations (SecOps) team in Google Public Sector delivers, operates and secures private cloud services. We aim to provide the flexibility, reliability, and scalability of public cloud for customers with exceptionally high security More ❯

history of creating magical moments for our customers! We're not about selling products - we want to solve problems and change lives through Monzo ️ At Monzo, our Offensive Security team is an integral part of our wider Security Collective, a passionate group dedicated to enhancing Monzo's security posture and ensuring a safer environment for our customers and employees. … We're the "breakers, not makers" - a team focused on finding vulnerabilities, proving their exploitability, and then collaborating with other teams to get them fixed. We don't write the fixes ourselves, but we provide expert advice to mitigate issues. We're also deeply committed to fostering diversity within our team, believing that a variety of perspectives makes … us stronger. Leading and scaling our dynamic Offensive Security team Owning and continually improving our team's processes and methodologies Acting as the main point of contact for other teams, fostering collaboration and sharing offensive security knowledge Engaging in strategic planning for the team's long-term direction Reviewing bug bounty reports and making authoritative decisions as More ❯

history of creating magical moments for our customers! We're not about selling products - we want to solve problems and change lives through Monzo ️ At Monzo, our Offensive Security team is an integral part of our wider Security Collective, a passionate group dedicated to enhancing Monzo's security posture and ensuring a safer environment for our customers and employees. … We're the "breakers, not makers" - a team focused on finding vulnerabilities, proving their exploitability, and then collaborating with other teams to get them fixed. We don't write the fixes ourselves, but we provide expert advice to mitigate issues. We're also deeply committed to fostering diversity within our team, believing that a variety of perspectives makes … us stronger. Leading and scaling our dynamic Offensive Security team Owning and continually improving our team's processes and methodologies Acting as the main point of contact for other teams, fostering collaboration and sharing offensive security knowledge Engaging in strategic planning for the team's long-term direction Reviewing bug bounty reports and making authoritative decisions as More ❯

Embed secure-by-design and privacy-by-design principles across IT and product teams; oversee SDLC, penetration testing, and coordinated disclosure. Direct 24 7 SOC operations, threat hunting, red/blue teaming, and crisis response through internal and external teams. Collaborate with data and legal teams to ensure alignment on data lifecycle, classification, and retention policies. Sponsor security … sexual orientation, or age. We are also committed to offering applicants with a disability an interview if they meet the minimum requirements for the role. Please contact our recruitment team at to discuss any access needs, reasonable adjustments or additional application support that may be required at any point during the recruitment process. More ❯

New Opportunity: CHECK Team Leader (Senior Penetration Tester) Morela are proud to be exclusively supporting one of our key client in Manchester as they grow their security function. The Role: We're looking for a highly skilled CHECK Team Leader (Senior Penetration Tester) to take a lead role in delivering high-impact security testing engagements. You’ll work … closely with key stakeholders, and help shape the delivery of red and blue team operations. Ideal for someone who thrives in a client-facing role and enjoys technical leadership. Key Requirements: CHECK Team Leader status (with valid CCT INF or CCT APP certification)?? Strong experience across infrastructure and/or application testing? Confident in delivering end More ❯

Life on the team Computacenter is growing our penetration testing capability and we are looking for an experienced penetration tester to support the delivery of vulnerability assessment and penetration testing services to Computacenter and our customers delivered services. As a highly skilled and motivated Penetration Tester, you will join our dynamic Cybersecurity team. In this role, you will be … own people and will look at individuals, you will be involved in so many business projects whilst working with passionate Cyber Security Professionals. If you are looking for a team that offers development and flexibility look no further and apply today What you'll do A highly skilled and motivated Penetration Tester to join our dynamic cybersecurity team. In … tests, API penetration tests, cloud security assessments, and social engineering simulations. Vulnerability identification and analysis: Research, identify, and exploit security vulnerabilities in a variety of systems and applications. Red/Purple/Blue Teaming: participate in exercises with the goal of increasing cyber resilience for both offensive and defensive. Reporting and documentation: Prepare detailed and professional penetration test More ❯

Graphs, Test time compute, CoT pipelines, Tool use & API calling, etc.) Data-centric Machine Learning (Synthetic Data, Curriculum Learning, Learned datamixtures, etc.) Evaluation (Benchmarks, Human-in-the-loop, red teaming/Adversarial Testing, Hallucination detection, ) We work collaboratively both with TR Labs (TR's applied research division), academic partners at world-leading research institutions and subject matter experts … number of subject matter experts involved in data collection, testing and evaluation of trained models. As a Research Scientist, you will play a key part in a diverse global team of experts. We hire world-leading specialists in ML/NLP/GenAI, as well as Engineering, to drive the company's leading internal AI model development. You will … You are involved in the entire research & model development lifecycle, brainstorming, coding, testing, and delivering high-quality reports at leading international academic conferences. Collaborate: Working on a collaborative global team of research engineers both within Thomson Reuters and our academic patterns at world-leading universities. Communicate: Actively engage in sharing our technical findings with the wider community through contributions More ❯

engineer who wants to grow their technical breadth while making meaningful impact in a cloud-first, DevOps-centric environment. You must be comfortable working as part of a global team in a dynamic, fast-paced environment. Collaboration across time zones and geographies is a key part of our culture and success. How will you contribute? Secure SDLC Integration: Embed … security assessments to identify risks early in the development process. Automation & Tooling: Enhance security automation capabilities by integrating security testing tools into CI/CD pipelines. Penetration Testing & Red Teaming: Facilitate internal and external penetration testing activities, helping to triage and remediate findings. Security Champion Enablement: Collaborate with engineering teams to build security awareness and develop a network More ❯

With more than a decade of experience, we provide over 350 global customers with software, bespoke AI consultancy , and Fellows from our award winning Fellowship programme . Our expert team brings together leaders from across government, academia and global tech giants to solve the biggest challenges in applied AI. Should you join us, you'll have the chance to … understanding. You will contribute to both external publications, and Faculty's commercial ambition to build safe AI systems. This is a great opportunity to join a small, high agency team of machine learning researchers and practitioners applying data science and machine learning to business problems in the real world. What you'll be doing Your role will evolve alongside … business needs, but you can expect your key responsibilities to include:Research Leadership: Lead the AI safety team's research agenda, setting priorities and ensuring alignment with Faculty's long-term goals. Conduct and oversee the development of cutting-edge AI safety research, with a focus on large language models and other safety-critical AI systems. Publish high-impact More ❯

Information Security risk programmes and thereafter manage the subsequent remediation. Design, manage and deliver specialist assurance activities over first-line and the wider business including, Red & Purple Team assessments, Data Leakage, and Disinformation & Dark-Web Assessments and Social Engineering exercises. Requirements: Experience as a 'Head of Information Security' or Senior Information Security Management role. Leading teams and More ❯

to Fuse's risk profile. Directly contribute to architecture reviews, threat modelling sessions, and key design decisions across product and platform teams. Build and mentor a high-performing security team, including hiring, coaching, and managing performance. Develop KPIs and reporting structures to measure and communicate security posture to leadership and the board. Advise the executive team on security … management. Excellent leadership, communication, and stakeholder skills. Bachelor's or advanced degree in Computer Science, Information Security, or related field. Bonus: Experience with CTFs, red/blue team exercises, or offensive security. Competitive salary and a stock options sign-on bonus Biannual bonus scheme Fully expensed tech to match your needs! Paid annual leave Breakfast and dinner More ❯

community and the thousands of companies that trust HackerOne with their cybersecurity posture. When you are not leading a project, you are a collaborative and effective software engineer and team member. You will interact with one of the world's most vibrant communities of security researchers and hackers and use this experience to build delightful features and products for … to technical weaknesses they find in their squad's codebases, as well as in shared codebases across the company. At HackerOne, we embrace a Flexible Work approach, enabling our team members to work remotely while maintaining productivity and collaboration. We are seeking candidates located in London and the surrounding metropolitan areas, to facilitate occasional in-person interactions as needed. … While the position is primarily remote, there will be periodic in-person requirements to support team collaboration and foster stronger connections. This approach ensures flexibility while providing opportunities to build meaningful in-person relationships that strengthen our team and company culture. What You Will Do Your day will start with a warm welcome online and get your tools More ❯