1 to 25 of 46 Offensive Security Jobs in the UK excluding London

client is a global aerospace, defence and security company. Job Description: Your impact Our client is seeking an experienced Red Team Consultant to join our growing Offensive Security capability. This role is open to both Senior and Principal level Consultants. Working within a defence-focused environment … will deliver threat-led security assessments, adversary emulation activities and advanced security testing for customers operating within complex and high-assurance environments. You will emulate realistic cyber threats, assess the effectiveness of security controls and provide actionable recommendations to help customers strengthen their resilience against sophisticated adversaries. ...

Security Engineer (Product Security) Salary: £80,000 - £90,000 + Excellent Benefits Location: London (Remote-first with occasional travel to the office) Employment: Full Time, Permanent This is an opportunity to join a high-growth, PE-backed cybersecurity software company where security isn't simply a support … organisations worldwide, the business develops market-leading technology that protects organisations from advanced file-based cyber threats. We're looking for a hands-on Security Engineer who enjoys getting into the detail of vulnerabilities, understanding how applications behave and working directly with developers to make software more secure. This ...

customers, with a strong focus on digital transformation and data-driven decision-making. We are looking for a talented and motivated Cyber Security Engineer to join our growing Information Security team. This is an exciting opportunity to play a key role in protecting our business, customers, systems … data while supporting our ongoing digital transformation journey. As a Cyber Security Engineer, you will design, implement, and enhance security solutions across cloud platforms, infrastructure, applications, networks, and endpoints. Working closely with Infrastructure, Platform, Engineering, Development, and Operations teams, you will help embed security into everything ...

looking for an experienced and highly capable Penetration Testing Lead to lead and evolve our penetration testing capability. Reporting to the Offensive Security Lead, you'll be accountable for the strategic direction, operational delivery and technical excellence of the team. This role combines deep technical expertise with inspirational … leadership, leading a team of highly skilled penetration testers while shaping the roadmap for both human-led and autonomous security testing across the Group. Spanning traditional end-to-end penetration testing services and continuous assurance capabilities, you'll work closely with engineering, security and business stakeholders, as well ...

team that safeguards the future of Big Science. Here, you'll collaborate with leading engineers, researchers, and technologists to tackle the most pressing security challenges in a fast-paced, innovative environment. Every day offers you the chance to defend vital data and systems, ensuring that the pursuit of scientific … excellence continues securely and seamlessly. Discover the difference you can make when you bring your expertise in information security to an organisation at the forefront of global research - working alongside some of the brightest minds and most advanced facilities in the world. Security As a minimum ...

understand complex data, so that governments, nation states, armed forces and commercial businesses can unlock digital advantage in the most demanding environments. Job Title: Security Testing Consultant Penetration Tester Location: UK Wide (Occasional office work, with 25% International Travel) Who we are Join our client and youll be part … help pioneer progress and protect what matters most. Youll be trusted to play your part in delivering the advanced, technology-led defence, aerospace and security solutions of tomorrow shaping a safer future, for all of us. From the depths of the ocean, to the far reaches of space theres ...

publishing, and community experiences worldwide. Atari operates internationally with offices in the US, UK, in France, Germany, Sweden, and India. Overview As a Senior Offensive Security Engineer, you will play a crucial role in evaluating and strengthening the security posture of the organization's IT infrastructure, applications … networks. Your primary responsibilities will include identifying and addressing security vulnerabilities through detailed assessments and hands-on penetration testing. You will work closely with cross-functional teams to enhance security measures and safeguard systems against potential threats. What You'll Do Conduct Vulnerability Assessments Perform detailed vulnerability assessments ...

Cyber, we're on a mission to help good people win. Founded in Edinburgh in 2016, we're one of the fastest growing cyber security companies in the UK and North America, serving over 400 customers on four continents. We protect organisations against the rising threat of cyber-attacks … enabling them to thrive in an increasingly unpredictable and inhospitable digital landscape. As a Microsoft-only security house, a Microsoft Solutions Partner for Security, a member of the Microsoft Intelligent Security Association (MISA), and winner of the Microsoft Security MSSP of the Year 2025 award ...

Opportunity Our client is looking to appoint an experienced ICT Cyber & Information Security Manager to take responsibility for a broad range of cyber security, information security, risk and compliance activities across the organisation. This is a key role within the Information Security function, providing the opportunity … take ownership of security activities ranging from the ICT Annual Delivery Plan through to major business growth initiatives, including site transitions and acquisitions across the UK and internationally. You'll work closely with internal teams, senior stakeholders and external partners to strengthen the organisation's cyber and information security ...

client is a global technology company. As a part of the UK Security Operations (SecOps) team in our Public Sector, you will deliver, operate and secure private cloud services. Your aim is to provide the flexibility, reliability, and scalability of public cloud for customers with exceptionally high security … client product teams to continually improve our technology. In this engineering-centric role, you will require deep technical expertise in cloud environments, Kubernetes security, and platform automation. You will work closely with Incident Response, Platform Engineering and Security Architects to ensure that security validation and defensive hardening ...

Quorum Cyber, established in Edinburgh, seeks an experienced security leader to drive advanced offensive security programs. You will design and execute complex engagements across networks, applications, and cloud, while building agentic AI to scale testing. The role emphasizes autonomy, rigorous reporting, and client-facing impact. Ideal candidates … bring 7+ years in offensive security, strong Python and AI tooling experience, and a track record turning automation into managed services. #J-18808-Ljbffr ...

Title: Opportunities in Cyber Security - eDV Required Location: Malvern, England, United Kingdom Role Type: Permanent Full Time Package: Competitive Salary + Benefits At QinetiQ, we’re not just imagining tomorrow; we are creating it. Our mission is to empower and protect lives. The Role: As a Cyber Specialist … solutions to complex problems, including planning and executing advanced red team engagements, simulating real‐world attack scenarios to assess and enhance the organisation’s security posture. Your responsibilities will include: Identifying and exploiting vulnerabilities in infrastructure, applications, and operational processes Developing realistic attack scenarios, leveraging tactics, techniques, and procedures ...

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 ...

understand complex data, so that governments, nation states, armed forces and commercial businesses can unlock digital advantage in the most demanding environments.Job Title: Security Testing Consultant – Penetration TesterLocation: UK WideWho we areJoin BAE Systems and you’ll be part of something bigger. As a valued member of our global … pioneer progress and protect what matters most. You’ll be trusted to play your part in delivering the advanced, technology-led defence, aerospace and security solutions of tomorrow - shaping a safer future, for all of us.From the depths of the ocean, to the far reaches of space - there ...

Made Tech helps UK government and public sector organisations build better digital services - and security is central to that mission. As a Lead Security Engineer in our Cyber practice, you'll be the most senior security engineering voice on client engagements, setting technical direction for how organisations … This isn't a role where you sit at the edge of delivery reviewing outputs. You'll be embedded in multidisciplinary teams, shaping how security is engineered into everyday work - from threat modelling and architecture at design time to hardened, monitored systems in production. You'll build trusted relationships ...

UKRI, located in Swindon with hybrid working options between Polaris House, Swindon and Harwell, seeks an Information Security specialist to lead offensive security and penetration testing initiatives. The role offers exposure to cutting-edge security challenges within a leading scientific research environment. You will perform targeted … tests, develop offensive tooling, analyse threat intelligence, and produce actionable reports to strengthen security across UKRI assets and facilities. #J-18808-Ljbffr ...

Atari is seeking a Senior Offensive Security Engineer to evaluate and strengthen the security posture of IT infrastructure, applications, and networks. You will lead vulnerability assessments and hands‐on penetration testing, collaborating with cross‐functional teams to improve security controls and incident response readiness. The role … requires 3+ years in VAPT or related security fields, with familiarity in IoT/OT security and relevant certifications preferred. #J-18808-Ljbffr ...

which involves spending at least two days per week, or 40% of our time, at one of our office sitesAbout this opportunityWithin the Chief Security Office (CSO) our role is to protect the Group and our customers from security threats, and to enable the Group's businesses … scale and speed.As a Senior DevOps/Platform Engineer, you will build and operate the infrastructure that the harness runs on. Autonomous agents executing offensive security workloads demand an unusually high bar: strong isolation, tightly controlled egress, hardened runtimes, and complete evidential traceability. You will design that platform ...

which involves spending at least two days per week, or 40% of our time, at one of our office sitesAbout this opportunityWithin the Chief Security Office (CSO) our role is to protect the Group and our customers from security threats, and to enable the Group's businesses … scale and speed.As a Senior DevOps/Platform Engineer, you will build and operate the infrastructure that the harness runs on. Autonomous agents executing offensive security workloads demand an unusually high bar: strong isolation, tightly controlled egress, hardened runtimes, and complete evidential traceability. You will design that platform ...

which involves spending at least two days per week, or 40% of our time, at one of our office sitesAbout this opportunityWithin the Chief Security Office (CSO) our role is to protect the Group and our customers from security threats, and to enable the Group's businesses … scale and speed.As a Senior DevOps/Platform Engineer, you will build and operate the infrastructure that the harness runs on. Autonomous agents executing offensive security workloads demand an unusually high bar: strong isolation, tightly controlled egress, hardened runtimes, and complete evidential traceability. You will design that platform ...

United States Digital Space LLC is seeking a Senior Offensive Security Engineer to assess and strengthen security across IT infrastructure, applications, and networks. You will identify vulnerabilities, perform hands-on penetration testing, and collaborate with cross-functional teams to implement robust security controls. The role requires ...

Quorum Cyber in Edinburgh is seeking a Senior Offensive Security Engineer (Autonomous testing) to lead and scale offensive engagements, including networks, web apps, and cloud, while developing agentic AI for autonomous testing stages. You will drive the evolution from human-led security testing to AI-assisted ...

looking for a Cyber Threat & Vulnerability Analyst to join our Cyber Security team, helping protect the systems that deliver essential water services to millions of customers every day. You'll play a key role in identifying, assessing, and reducing cyber risk across a large and complex technology estate, making … identify, assess, and manage cyber vulnerabilities across the organisation. You’ll help shape how we reduce cyber risk and strengthen our overall security posture. Support end-to-end vulnerability management across IT and operational technology environments Help shape and improve threat and vulnerability management processes, frameworks, and ways ...

strengthening our global presence, and building strong client relationships. No career pathway in your current role? You won’t stand still in our Cyber Security team which is a part of our wider Technology & Cyber Risk Assurance team. You’ll work with our team of specialists … spot inefficiencies in everyday life and are passionate about making improvements, this role is perfect for you! Relevant experience within a technology risk, information security or cyber security role. Significant experience delivering cyber security assurance and advisory services. Proven experience in managing engagements ...

looking for a Application Security Engineer to join our Manchester-based application security business as a member of the AppSec Engineering team (Open to people who can make it to our office twice a month or remote) Cytix is a platform that threat models development tickets and creates … security testing plans that include both manual and automated testing. In this role, you won't be confined to traditional 4+1 web applications. We're breaking away from the constraints of CHECK or CE+ standards, and we're not interested in producing lengthy PDF reports. Instead, our focus ...