Information Security Engineer - Classified Systems

Added 25/09/2026

We are seeking an Information Security Engineer to support the protection, operation, and continuous improvement of classified information systems. In this role, you will contribute to the secure design, implementation, assessment, and maintenance of systems operating in highly controlled environments. You will work closely with technical teams, system owners, security authorities, and operational stakeholders to ensure that security requirements are understood, implemented, and sustained throughout the system lifecycle. Key responsibilities include conducting security risk assessments, supporting accreditation and authorization activities, developing and maintaining security documentation, and monitoring compliance with applicable policies, standards, and regulatory requirements. You will assist with vulnerability...

Security Engineer, Forward Deployed Engineering, AWS Forward Deployed Engineering

Added 16/10/2026

We are seeking a Security Engineer to join a forward-deployed engineering team delivering secure, resilient solutions for complex customer environments. You will work closely with customers, software engineers, platform specialists and technical stakeholders to understand operational challenges, design effective security controls and implement solutions that work in real-world conditions. This role combines hands-on engineering, consultancy and problem-solving, with the opportunity to influence both technical direction and customer outcomes. Your responsibilities will include assessing security requirements, identifying risks and recommending proportionate mitigations across infrastructure, applications, networks and data. You will design, build and maintain security tooling, automation and monitoring capabilities; support...

Cyber Security Engineer - Cyber & Autonomous Systems Team

Added 18/09/2026

We are seeking a Cyber Security Engineer to join a specialist Cyber & Autonomous Systems team working on the security of advanced, software-enabled and autonomous capabilities. In this role, you will help protect complex systems throughout their lifecycle, from early concept and design through development, integration, testing, deployment and ongoing support. You will work closely with engineering, software, systems, operational and assurance teams to identify cyber risks and develop practical, proportionate security solutions. Your responsibilities will include conducting threat modelling, vulnerability assessments and security risk analyses; defining and reviewing security requirements; contributing to secure-by-design architectures; and supporting the implementation of...

Cyber Security Engineer - Cyber & Autonomous Systems Team

Added 17/09/2026

We are seeking a Cyber Security Engineer to join a specialist Cyber and Autonomous Systems Team. In this role, you will help protect complex, mission-critical systems that integrate software, hardware, networks, sensors and autonomous capabilities. You will contribute throughout the system lifecycle, from early concept and requirements development through to design, implementation, testing, deployment and ongoing assurance. The position offers the opportunity to work on challenging technical problems where security, safety, resilience and operational performance are closely connected. Your responsibilities will include conducting threat, risk and vulnerability assessments; developing security requirements and architectures; and designing practical controls for embedded, cloud,...

Cyber Security & Systems Engineer

Added 08/10/2026

We are seeking a Cyber Security & Systems Engineer to help protect, maintain and continuously improve a diverse technology environment. This role combines cyber security operations, systems engineering and infrastructure support, offering the opportunity to work across cloud services, networks, endpoints, identity platforms and enterprise applications. You will contribute to the design and implementation of secure, resilient systems while helping to identify and reduce operational and security risks. Key responsibilities will include monitoring security alerts, investigating and responding to incidents, managing vulnerabilities and supporting threat detection and prevention activities. You will configure and maintain security controls such as endpoint protection,...

Senior Systems & Cyber Engineer

Added 06/10/2026

We are seeking a Senior Systems & Cyber Engineer to design, maintain and enhance secure, resilient technology environments. This role will combine systems engineering, infrastructure operations and cybersecurity expertise to support critical services and protect information assets. You will work across cloud and on-premises platforms, networks, endpoints and enterprise applications, ensuring systems remain available, compliant and capable of meeting evolving business and security requirements. Your responsibilities will include designing and implementing secure infrastructure solutions; administering and hardening Windows and Linux environments; managing identity, access controls, patching, vulnerability remediation and configuration standards; and supporting cloud platforms, virtualisation technologies, networks and backup...

Software Engineer - Cyber & Autonomous Systems Team

Added 18/09/2026

We are seeking a Software Engineer to join a specialist Cyber & Autonomous Systems Team developing secure, resilient and intelligent technologies for complex operational environments. You will contribute to the full software development lifecycle, from requirements analysis and system design through to implementation, integration, testing, deployment and ongoing improvement. Working as part of a multidisciplinary engineering team, you will help deliver robust software for autonomous platforms, cyber capabilities, sensing systems and mission-critical applications. Your responsibilities will include designing and developing high-quality software using modern programming languages and engineering practices; integrating software with hardware, networks, sensors and external systems; writing automated...

Software Engineer - Cyber & Autonomous Systems Team

Added 17/09/2026

We are seeking a Software Engineer to join a multidisciplinary Cyber & Autonomous Systems Team developing secure, intelligent, and resilient solutions for complex operational environments. You will contribute to the full software development lifecycle, from requirements analysis and system design through implementation, integration, testing, deployment, and ongoing support. The role offers the opportunity to work on advanced systems that combine software engineering, autonomy, data processing, communications, and cybersecurity. Your responsibilities will include designing and developing robust software in languages such as C++, Python, or Java; integrating software with sensors, platforms, networks, and other mission-critical systems; and creating automated tests to...

Information Security Systems Engineer

Added 19/10/2026

We are seeking an Information Security Systems Engineer to help protect critical systems, infrastructure and data across a complex technology environment. You will design, implement and maintain security controls that support confidentiality, integrity and availability, while working closely with infrastructure, cloud, application and service teams. The role will involve assessing technical risks, recommending practical improvements and ensuring security is embedded throughout the systems lifecycle. Your responsibilities will include configuring and administering security technologies such as firewalls, endpoint protection, vulnerability management platforms, identity and access management solutions, security information and event management tools, and network monitoring systems. You will investigate and...

IT Systems & Security Analyst - London (Westminster)

Added 14/10/2026

An opportunity is available for an IT Systems & Security Analyst to support the reliable, secure and efficient operation of technology services in a London-based environment. This role will suit a technically capable professional who enjoys working across infrastructure, cybersecurity, systems administration and user support. You will help maintain a resilient IT environment while contributing to continuous improvements in security, service quality and operational performance. Key responsibilities will include monitoring systems, networks and security tools; investigating and resolving incidents, service requests and technical issues; administering user accounts, access permissions and endpoint devices; and supporting Microsoft 365, Windows-based systems, cloud services...

GCAP Systems Security Engineer

Added 12/10/2026

We are seeking a Systems Security Engineer to support the design, implementation, and maintenance of secure, resilient technology environments. The successful candidate will work across infrastructure, applications, networks, and cloud services to identify security risks and develop practical solutions that protect systems, data, and users. This role will contribute to security architecture, system hardening, vulnerability management, incident response, and the continuous improvement of security controls throughout the technology lifecycle. Key responsibilities include assessing security requirements for new and existing systems; conducting threat, risk, and vulnerability assessments; developing and maintaining secure configuration standards; and supporting security testing, monitoring, and remediation activities....

Head of Business Systems & Security

Added 05/10/2026

We are seeking an experienced Head of Business Systems & Security to lead the strategy, governance and continuous improvement of the systems and security environment across the organisation. This is a senior role combining business technology leadership with information security oversight, ensuring that platforms, processes and controls support operational performance, regulatory obligations and long-term growth. You will work closely with senior stakeholders to understand business priorities, translate them into practical technology roadmaps and ensure that systems remain secure, resilient, scalable and fit for purpose. Key responsibilities will include owning the business systems strategy, evaluating and managing core applications, overseeing integrations...

Head of Business Systems & Security

Added 30/09/2026

We are seeking a Head of Business Systems & Security to lead the development, governance and protection of the systems that support business operations. This is a strategic and hands-on role, responsible for ensuring that technology platforms are reliable, secure, well integrated and aligned with organisational objectives. You will work closely with senior stakeholders and teams across the business to understand requirements, prioritise improvements and deliver practical solutions that enhance efficiency, data quality and user experience. Your responsibilities will include overseeing core business applications, systems architecture, integrations, access management and technology-related processes. You will establish effective policies, controls and procedures...

Head of Business Systems & Security

Added 30/09/2026

We are seeking an experienced Head of Business Systems & Security to lead the strategy, delivery and continuous improvement of our business applications, technology operations and information security framework. This is a senior leadership role responsible for ensuring that systems are reliable, secure, scalable and aligned with organisational objectives. You will work closely with senior stakeholders and operational teams to understand business needs, prioritise technology initiatives and deliver solutions that improve efficiency, insight and service quality. Key responsibilities will include overseeing the business systems roadmap, applications portfolio, integrations, data governance and technology vendors. You will lead the implementation, optimisation and...

Head of Business Systems & Security

Added 30/09/2026

We are seeking an experienced Head of Business Systems & Security to lead the strategic development, operation and protection of the organisation’s technology environment. This is a senior role responsible for ensuring that business systems are reliable, secure, scalable and aligned with organisational objectives. You will work closely with senior stakeholders and teams across the business to understand operational needs, improve processes and deliver technology solutions that support growth and efficiency. Key responsibilities will include developing and implementing a business systems and information security strategy; overseeing the selection, integration, maintenance and optimisation of core platforms; and managing relationships with technology...