1 to 25 of 56 Permanent Red Team Jobs in the UK

Red Team Operators & Leads (Financial Services Focus) - REMOTE - Applicants must have lived in the UK for the last 5 years - £100k + benefits Are you an experienced Red Teamer looking to take on high-impact engagements in the financial services sector? I am looking for Red Team Operators and especially Red Team Leads to join a growing offensive security team. You’ll play a critical role in delivering regulatory red team engagements—particularly in environments governed by frameworks like TIBER , CBEST , CSTAR , and DORA . If you thrive on leading complex assessments, developing creative attack paths, and engaging with clients at the highest levels—this … role is for you. What You'll Do Lead and deliver advanced red team and penetration testing engagements Work on regulatory red team exercises in the financial services sector Manage complex client engagements , reporting to stakeholders, and working with internal blue teams Bring new ideas and techniques to your engagements, from initial access to More ❯

Penetration Testing Team Lead Technology Banking AVP Level Hybrid (London (Moorgate) 3 days per week) Salary & Package TBC Opportunity for a skilled Cyber Security Professional with penetration testing and red team expertise to join a global financial services organisation. This is a hands-on role where you'll simulate advanced cyber attacks, test defences, and influence … enterprise-level security strategy. Key Responsibilities Lead red team operations , penetration testing, and ethical hacking engagements Plan and deliver cyber attack simulations, vulnerability assessments, and social engineering tests Work with SOC teams on purple team exercises to enhance detection and response Produce executive reporting on cyber threats, risks, and remediation progress Collaborate with security and infrastructure … role in cyber security, penetration testing, and ethical hacking at enterprise scale. This role could suit individuals who have held the following role titles: Penetration Tester, Red Team Specialist, Lead Red Team Operator, Red Team Lead, Ethical Hacker, Security Tester, Vulnerability Analyst, Offensive Security Specialist, Threat Intelligence Analyst. Deerfoot Recruitment Solutions More ❯

Offensive Security Tester (Red Team) London/WFH to £70k Opportunity to progress your career as an Offensive Security Tester at a rapidly expanding scale-up software house that is developing a highly complex network cyber security platform; you'll be working on Greenfield projects, collaborating with and learning from a hugely talented team. Your role: As … as carrying out manual reviews to discover any issues with customer infrastructure and web applications. You'll be pro-active and will have the opportunity within Red Team testing to try anything and everything to outmanoeuvre the defenders and gain access to customer networks. WFH Policy: There's a remote interview/onboarding process and the ability … tier world university - Computer Science, Engineering, Physics or Mathematics; MSc or PhD advantageous You're OSCP or CRT certified You have commercial experience with Offensive Security, Red Team testing or Penetration testing You have a keen interest in Cyber Security and understanding of key concepts and protocols You can code with any OO programming language (e.g. Python More ❯

Offensive Security Tester (Red Team) London/WFH to £70k Opportunity to progress your career as an Offensive Security Tester at a rapidly expanding scale-up software house that is developing a highly complex network cyber security platform; you'll be working on Greenfield projects, collaborating with and learning from a hugely talented team. Your role: As … as carrying out manual reviews to discover any issues with customer infrastructure and web applications. You'll be pro-active and will have the opportunity within Red Team testing to try anything and everything to outmanoeuvre the defenders and gain access to customer networks. WFH Policy: There's a remote interview/onboarding process and the ability … tier world university - Computer Science, Engineering, Physics or Mathematics; MSc or PhD advantageous You're OSCP or CRT certified You have commercial experience with Offensive Security, Red Team testing or Penetration testing You have a keen interest in Cyber Security and understanding of key concepts and protocols You can code with any OO programming language (e.g. Python More ❯

Penetration Tester - Red Team - Remote A renowned cyber security consultancy is growing their technical team with the addition of a Penetration Tester with experience of Red Team engagements. You'll join a talented team of cyber security specialists to work on a range of offensive security projects with clients across various industries … to develop your skills and career with professional qualifications. To be successful in this role, you should bring: A minimum of 2 years' experience working on red team engagements Strong background in penetration testing with skills in topics such as EDR evasion, exploit development, cloud exploitation etc. Coding experience in languages such as Python, C/C++ … undertaken, the successful candidate must be eligible for UK Security Clearance. If you would like to learn more about this exciting opportunity to work on complex red team engagements, apply now More ❯

Company – Our client is a globally recognized cybersecurity leader, serving enterprise and government clients across critical industries. Renowned for its advanced threat detection and red team operations, this organization is at the forefront of offensive security and cyber resilience. Job Title – Red Team Operator Location – Remote (must be located in a Western Europe time … tools such as Kali Linux, Metasploit Pro, and NMAP Ability to exploit vulnerabilities such as SQL injection, XSS, and conduct password cracking Prior experience on a Cyber Defense Blue Team (e.g., SOC, Incident Response, Threat Hunting, or Security Architecture) Strong understanding of the MITRE ATT&CK Framework Solid grasp of ports, protocols, operating systems, and file system fundamentals Knowledge … of computer networking concepts and experience with vulnerability scoring and remediation Responsibilities and Job Details: Conduct comprehensive red team operations simulating real-world attacks Identify vulnerabilities through manual and automated techniques Leverage advanced toolsets and custom scripts to exploit systems securely Collaborate with blue teams to improve detection and response capabilities Document and present findings to technical More ❯

sector, delivering secure digital solutions to UK government and critical national infrastructure programmes. They are expanding their cyber capability and are seeking an experienced Penetration Tester to join the team on a long-term contract, supporting a range of high-impact security projects. THE PENETRATION TESTER ROLE: As a Penetration Tester, you will perform manual and automated testing across … web applications, networks, APIs, and mobile platforms. You’ll identify and document vulnerabilities, support red team operations, and collaborate with development and infrastructure teams to ensure effective remediation and security improvements. Key responsibilities include: Conducting penetration tests and vulnerability assessments across multiple environments Performing red team and threat simulation exercises Producing detailed reports outlining … us to process and submit (subject to required skills) your application to our client in conjunction with this vacancy only. KEY SKILLS: Penetration Tester, Ethical Hacker, Red Team, Cyber Security, OWASP, MITRE ATT&CK, Vulnerability Assessment, OSCP, GPEN, CEH, CRTP, SC Cleared, NSD More ❯

sector, delivering secure digital solutions to UK government and critical national infrastructure programmes. They are expanding their cyber capability and are seeking an experienced Penetration Tester to join the team on a long-term contract, supporting a range of high-impact security projects. THE PENETRATION TESTER ROLE: As a Penetration Tester, you will perform manual and automated testing across … web applications, networks, APIs, and mobile platforms. You’ll identify and document vulnerabilities, support red team operations, and collaborate with development and infrastructure teams to ensure effective remediation and security improvements. Key responsibilities include: Conducting penetration tests and vulnerability assessments across multiple environments Performing red team and threat simulation exercises Producing detailed reports outlining … us to process and submit (subject to required skills) your application to our client in conjunction with this vacancy only. KEY SKILLS: Penetration Tester, Ethical Hacker, Red Team, Cyber Security, OWASP, MITRE ATT&CK, Vulnerability Assessment, OSCP, GPEN, CEH, CRTP, SC Cleared, NSD More ❯

Role: Red Team Operator Rate: TBC Location: London, City. Contract length: 5 months -> Perm Conversion Requirements: 3+ years of experience in offensive security, including red teaming and penetration testing Strong understanding of the MITRE ATT&CK framework and threat emulation methodologies Proficiency in offensive tools (Cobalt Strike, Sliver, Metasploit, etc.) and custom payload development Experience More ❯

driven company. We cultivate a culture that gives every CrowdStriker both the flexibility and autonomy to own their careers. We're always looking to add talented CrowdStrikers to the team who have limitless passion, a relentless focus on innovation and a fanatical commitment to our customers, our community and each other. Ready to join a mission that matters? The … future of cybersecurity starts with you. **Malware Research Center:**** The CrowdStrike Malware Research Center (MRC) is at the core of Falcon's malware detection and response capabilities. The team focuses on understanding the threat landscape and sets the target for what Falcon should be detecting and preventing. Additionally, the MRC is responsible for understanding our capabilities and mapping how … across all of them to ensure we are on target and providing the best protection for the current threat landscape. **About The Role:**** The Sr. Cloud Red Team Engineer will work on a team dedicated to performing adversarial activities, with this role specifically focusing on Cloud environments. As part of the team, you will emulate More ❯

Penetration Testing Team Lead Technology Banking AVP Level Hybrid (London (Moorgate) 3 days per week) Salary & Package TBC Opportunity for a skilled Cyber Security Professional with penetration testing and red team expertise to join a global financial services organisation click apply for full job details More ❯

Overview: The UKRI CIO Group plays a pivotal role in managing and optimising the organisationscritical enterprise technical services that underpin and enable UKRIs business capabilities. Within the group a team of Information Security Professionals support the delivery of modern, secure, resilient and scalable services across a larger federated team of Digital, Data and Technology professionals to deliver impact … intelligence in a dynamic, fast-paced security operational and strategic role in an organisation at the heart of research and innovation in the UK. Leading the Red Team of penetration testers your broad remit is toidentify real-world risks to diverse technical landscapes, uncovering security vulnerabilities, actively exploiting findings, assessing additional impacts through post-exploitation, and providing … submission. Candidates not meeting this level of clearance will not be considered. The level of clearance required issecurity check Key Responsibilities: Execute targeted penetration tests and red team exercises to identify exploitable vulnerabilities. Develop and maintain offensive tooling to simulate adversary tactics and techniques. Monitor and analyse threat intelligence feeds to identify emerging threats and relevant TTPs. More ❯

UKRI CIO Group plays a pivotal role in managing and optimising the organisations critical enterprise technical services that underpin and enable UKRI's business capabilities. Within the group a team of Information Security Professionals support the delivery of modern, secure, resilient and scalable services across a larger federated team of Digital, Data and Technology professionals to deliver impact … intelligence in a dynamic, fast-paced security operational and strategic role in an organisation at the heart of research and innovation in the UK. Leading the Red Team of penetration testers your broad remit is to identify real-world risks to diverse technical landscapes, uncovering security vulnerabilities, actively exploiting findings, assessing additional impacts through post-exploitation, and … Candidates not meeting this level of clearance will not be considered. The level of clearance required is security check Key Responsibilities: Execute targeted penetration tests and red team exercises to identify exploitable vulnerabilities. Develop and maintain offensive tooling to simulate adversary tactics and techniques. Monitor and analyse threat intelligence feeds to identify emerging threats and relevant TTPs. More ❯

What We Are Looking For As a Red Team Specialist focused on GenAI models, you will play a critical role in safeguarding the security and integrity of commercial cutting-edge AI technologies. Your primary responsibility will be to analyze and test commercial GenAI systems including, but not limited to, language models, image generation models, and related infrastructure. … to design and implement effective risk mitigation strategies that enhance model resilience. Apply innovative testing methodologies to ensure state-of-the-art security practices. Document all red team activities, findings, and recommendations with precision and clarity. Must-Have Proven track record in AI vulnerability analysis. Strong understanding of AI technologies and underlying architectures, especially generative models and More ❯

technical and procedural mitigations to reduce insider risk exposure. Support the maturity of the Insider Risk Program through playbook development, automation, and continuous improvement. Contribute to red team/blue team exercises and insider threat simulations to validate detection and response capabilities. Deliver clear and actionable reporting to leadership and stakeholders, maintaining a balance between risk More ❯

the United States, Canada, United Kingdom, the Philippines, India, Sri Lanka, Israel and Germany. We are seeking highly analytical and detail-oriented professionals with hands-on experience in Red Teaming, Prompt Evaluation , and AI/LLM Quality Assurance . The ideal candidate will help us rigorously test and evaluate AI-generated content to identify vulnerabilities, assess risks, and … ensure compliance with safety, ethical, and quality standards. Key Responsibilities: Conduct Red Teaming exercises to identify adversarial, harmful, or unsafe outputs from large language models (LLMs). Evaluate and stress-test AI prompts across multiple domains (e.g., finance, healthcare, security) to uncover potential failure modes. Develop and apply test cases to assess accuracy, bias, toxicity, hallucinations , and misuse … evaluation protocols, and meet tight deadlines. Preferred Qualifications: Prior work with teams like OpenAI, Anthropic, Google DeepMind, or other LLM safety initiatives. Experience in risk assessment, red team security testing, or AI policy & governance. Background in linguistics, psychology, or computational ethics is a plus. Experience with one or more of the following is a plus: computational linguistics More ❯

Oversee end-to-end testing, from scoping and planning to full-scale execution. Operate independently and collaboratively with other senior and junior operators. Participate in advanced Red Team exercises, remaining undetected by XDR/IDS/IPS/EDR systems. Conduct physical security assessments, including covert access operations. Qualifications & Skills: 5 - 10 years of experience in hands … on penetration testing/red teaming/Offensive Security operations with consulting/client-facing experience. Experience as a CHECK Team Lead. Proficiency in scripting and programming languages such as Python, Ruby, C#, etc. in source code review or automation experience. Desirable: Relevant certifications like OSCP, OSWE, GCPN and others are a great plus. Experience running end More ❯

Oversee end-to-end testing, from scoping and planning to full-scale execution. Operate independently and collaboratively with other senior and junior operators. Participate in advanced Red Team exercises, remaining undetected by XDR/IDS/IPS/EDR systems. Conduct physical security assessments, including covert access operations. Qualifications & Skills: 5 - 10 years of experience in hands … on penetration testing/red teaming/Offensive Security operations with consulting/client-facing experience. Experience as a CHECK Team Lead. Proficiency in scripting and programming languages such as Python, Ruby, C#, etc. in source code review or automation experience. Desirable: Relevant certifications like OSCP, OSWE, GCPN and others are a great plus. Experience running end More ❯

Oversee end-to-end testing, from scoping and planning to full-scale execution. Operate independently and collaboratively with other senior and junior operators. Participate in advanced Red Team exercises, remaining undetected by XDR/IDS/IPS/EDR systems. Conduct physical security assessments, including covert access operations. Qualifications & Skills: 5 - 10 years of experience in hands … on penetration testing/red teaming/Offensive Security operations with consulting/client-facing experience. Experience as a CHECK Team Lead. Proficiency in scripting and programming languages such as Python, Ruby, C#, etc. in source code review or automation experience. Desirable: Relevant certifications like OSCP, OSWE, GCPN and others are a great plus. Experience running end More ❯

Full-Time My client is a dynamic and growing cybersecurity consultancy dedicated to providing top-tier security services to a diverse range of clients. They believe in empowering the team with the flexibility of remote work while tackling challenging and engaging projects that make a real difference to their clients' security posture. The Role We are seeking a highly … and provide pragmatic remediation advice to clients. Key Responsibilities Plan, lead, and execute sophisticated penetration tests across infrastructure, web applications, APIs, and internal networks. Conduct advanced Red Team exercises to simulate real-world adversary attacks and test organisational defences. Produce high-quality, clear, and concise reports for both technical and executive audiences, detailing findings, risks, and actionable … remediation strategies. Mentor and provide guidance to junior members of the team, promoting best practices and knowledge sharing. Collaborate with clients to scope engagements, present findings, and provide expert advice on mitigating identified vulnerabilities. Stay abreast of the latest security vulnerabilities, attack vectors, tools, and methodologies. Contribute to the continuous improvement of our testing methodologies and service offerings. Essential More ❯

Responsibilities of the Senior ICS OT Cyber Security Engineer: Design and secure OT/ICS networks and cross-domain communications. Conduct threat modelling, vulnerability assessments, and red team exercises. Implement cybersecurity solutions, audit systems, and ensure compliance with relevant frameworks. Mentor junior team members and support project delivery. Maintain strong client and stakeholder relationships. Key Requirements More ❯

Overview Engineer the future of global finance. At Citi, our Tech team doesn't just support finance - we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look … to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech. Responsibilities Evaluate and recommend new … Development function to drive the development of strategies and plans for improving both architecture and application security Conduct and facilitate security reviews and table-top/red-team/scenario analysis exercises in conjunction with other Subject Matter Experts by monitoring changes in the risk profile and exposure for the application Identify new requirements/enhancements to More ❯

offensive experts to invent new TTPs and attack modern infrastructure Researching cutting-edge attack vectors across cloud, SaaS, web stacks, and internet-exposed infrastructure Partnering with Red Team Engineers to scale and automate your discoveries so nothing gets wasted (Optional but encouraged) Presenting your research at industry conferences with full company support to make it happen What … theyre looking for: 5+ years of real-world offensive security or red teaming experience Deep understanding of how to compromise organisations without relying on public CVEs Ability to think like an attacker, working without fixed scopes or playbooks Scripting skills (Python, Go, etc.) to automate exploits, discovery, or tooling Industry certifications (CCSAS, CCT, CRT, OSCP, etc.) or equivalent … best tools & tech youll be enabled to do your best work ? Huge growth this scale-up is in hypergrowth mode, with internal promotion baked into the culture ? World-class team collaborate with some of the sharpest offensive minds in the industry This isnt just another pentesting job. Its your chance to push boundaries, break things, and redefine whats possible More ❯

offensive experts to invent new TTPs and attack modern infrastructure Researching cutting-edge attack vectors across cloud, SaaS, web stacks, and internet-exposed infrastructure Partnering with Red Team Engineers to scale and automate your discoveries so nothing gets wasted (Optional but encouraged) Presenting your research at industry conferences - with full company support to make it happen What … they're looking for: 5+ years of real-world offensive security or red teaming experience Deep understanding of how to compromise organisations without relying on public CVEs Ability to think like an attacker, working without fixed scopes or playbooks Scripting skills (Python, Go, etc.) to automate exploits, discovery, or tooling Industry certifications (CCSAS, CCT, CRT, OSCP, etc.) or … tools & tech - you'll be enabled to do your best work Huge growth - this scale-up is in hypergrowth mode, with internal promotion baked into the culture World-class team - collaborate with some of the sharpest offensive minds in the industry This isn't just another pentesting job. It's your chance to push boundaries, break things, and redefine More ❯

offensive experts to invent new TTPs and attack modern infrastructure Researching cutting-edge attack vectors across cloud, SaaS, web stacks, and internet-exposed infrastructure Partnering with Red Team Engineers to scale and automate your discoveries so nothing gets wasted (Optional but encouraged) Presenting your research at industry conferences — with full company support to make it happen What … they’re looking for: 5+ years of real-world offensive security or red teaming experience Deep understanding of how to compromise organisations without relying on public CVEs Ability to think like an attacker, working without fixed scopes or playbooks Scripting skills (Python, Go, etc.) to automate exploits, discovery, or tooling Industry certifications (CCSAS, CCT, CRT, OSCP, etc.) or … tools & tech – you’ll be enabled to do your best work Huge growth – this scale-up is in hypergrowth mode, with internal promotion baked into the culture World-class team – collaborate with some of the sharpest offensive minds in the industry This isn’t just another pentesting job. It’s your chance to push boundaries, break things, and redefine More ❯