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....

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,...

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...

Senior Systems Engineer - Application Security

Added 24/09/2026

We are seeking a Senior Systems Engineer – Application Security to strengthen the security, reliability, and performance of critical applications and supporting infrastructure. In this role, you will work closely with software engineering, platform, operations, and risk teams to embed security throughout the application lifecycle, from design and development through deployment and ongoing maintenance. You will provide technical leadership on secure architecture, systems hardening, vulnerability management, identity and access controls, and cloud security practices. Your responsibilities will include reviewing application and infrastructure designs, identifying security risks, and recommending practical, scalable improvements. You will develop and maintain security standards, controls, and...

Security Infrastructure Systems Engineer

Added 24/09/2026

We are seeking a Security Infrastructure Systems Engineer to design, implement, maintain and secure the platforms that support critical business services. You will work across infrastructure, cloud, networks and security operations to ensure systems are resilient, scalable and protected against evolving threats. The role involves collaborating with technical teams, service owners and stakeholders to translate security requirements into practical, reliable solutions. Your responsibilities will include administering and hardening Windows and Linux systems, virtualisation platforms, cloud services, identity and access management technologies, endpoint security tools and network security controls. You will develop and maintain secure configuration standards, monitor infrastructure for vulnerabilities...

AI Security Engineer (Agentic Systems)

Added 22/09/2026

We are seeking an AI Security Engineer (Agentic Systems) to help design, evaluate, and secure intelligent systems that can reason, plan, use tools, and operate with varying degrees of autonomy. In this role, you will work across security engineering, machine learning, and software development to identify emerging risks in agentic architectures and build practical safeguards. You will contribute to secure-by-design principles throughout the lifecycle, from research and prototyping through deployment, monitoring, and continuous improvement. Your responsibilities will include threat modelling AI agents, tool-use workflows, orchestration layers, memory systems, data pipelines, and model integrations. You will develop and execute adversarial tests...

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,...

Security Systems Engineer

Added 17/09/2026

We are seeking a Security Systems Engineer to design, install, maintain and improve integrated security technologies across a range of operational environments. The role will focus on ensuring that physical security systems are reliable, resilient and aligned with business, regulatory and safety requirements. You will work closely with internal stakeholders, contractors and technology partners to deliver effective solutions that protect people, premises, assets and information. Key responsibilities will include configuring, commissioning and supporting CCTV, access control, intruder detection, intercom, perimeter protection and associated monitoring systems. You will investigate faults, assess system performance, coordinate planned maintenance and respond to incidents or...

Security Systems Engineer

Added 15/09/2026

We are seeking a Security Systems Engineer to design, implement, maintain and improve integrated electronic security solutions across a range of operational environments. The role will involve working with stakeholders, technical teams, contractors and service providers to ensure that security systems remain reliable, compliant and fit for purpose. You will contribute to the full systems lifecycle, from requirements gathering and technical design through to installation, commissioning, support and continuous improvement. Key responsibilities will include configuring and administering access control, CCTV, intrusion detection, intercom, perimeter protection and associated monitoring systems. You will investigate faults, coordinate planned and reactive maintenance, review system...

Senior Systems Security Engineer

Added 15/09/2026

We are seeking a Senior Systems Security Engineer to design, implement, and maintain robust security solutions across complex enterprise infrastructure. In this role, you will work closely with infrastructure, networking, cloud, and application teams to protect systems, data, and services against evolving cyber threats. You will contribute to security architecture, technical strategy, and the continuous improvement of defensive capabilities across on-premises and cloud environments. Key responsibilities include developing and enforcing system security standards, hardening operating systems and infrastructure, and reviewing designs for security, resilience, and compliance. You will investigate security events, support incident response activities, and lead root-cause analysis to...

Security Systems Engineer

Added 07/09/2026

We are seeking a Security Systems Engineer to design, implement, maintain and improve integrated security systems across a complex operational environment. The role will support the availability, resilience and effectiveness of physical and electronic security technologies, including access control, CCTV, intruder detection, intercoms, alarm monitoring and related networked systems. You will work closely with internal stakeholders, specialist contractors and technical service providers to ensure systems meet operational, safety and compliance requirements. Key responsibilities include developing technical specifications, reviewing designs, coordinating installations and commissioning new or upgraded security solutions. You will investigate faults, lead system testing, manage preventative maintenance and provide...

Cyber Security Systems Engineer

Added 01/09/2026

We are seeking a Cyber Security Systems Engineer to design, implement, maintain, and improve secure technology environments across a complex IT estate. The successful candidate will help protect systems, networks, applications, and data by applying strong cyber security principles throughout the technology lifecycle. This role will work closely with infrastructure, cloud, software development, and operational teams to identify risks, strengthen controls, and support the delivery of resilient services. Key responsibilities include configuring and administering security tools such as endpoint protection, vulnerability management, identity and access management, security information and event management, firewalls, and intrusion detection systems. You will monitor security...

Security Systems Engineer

Added 26/08/2026

We are seeking a skilled Security Systems Engineer to design, implement, maintain and improve electronic security systems across a range of operational environments. This role will support the delivery of reliable, integrated solutions that protect people, property, information and critical infrastructure. You will work closely with internal stakeholders, contractors and technology partners to understand security requirements and translate them into practical, scalable systems. Your responsibilities will include developing technical specifications, system architectures and project documentation; configuring and commissioning access control, CCTV, intruder detection, intercom, alarm monitoring and associated security technologies; and supporting the integration of security platforms with wider IT,...

Senior Security Systems Design Engineer

Added 25/08/2026

We are seeking a Senior Security Systems Design Engineer to lead the design and development of integrated security solutions across a range of complex projects. This role will involve translating operational and technical requirements into robust, scalable system designs covering access control, CCTV, intruder detection, perimeter protection, intercom, security management platforms and associated network infrastructure. You will work closely with clients, project teams, consultants, suppliers and installation partners to ensure solutions are practical, compliant and aligned with project objectives. Key responsibilities will include producing concept designs, technical specifications, system architectures, equipment schedules, drawings, calculations and tender documentation. You will review...