Defence IT: Systems Admin & Network Tech (DV Eligible)

Carbon 60; Southwick; On-site; GBP 45,000 - 65,000; Full time

Job summary

Maritime Works (MarWorks) in Portsmouth seeks three Systems Administrator/Network Technicians to support build, integration, deployment and maintenance of digital platforms and network infrastructure for operational environments.

The roles involve working from build guides, configuring Windows and Linux systems, and ensuring secure, compliant operations. Occasional travel to Defence locations may be required, with DV clearance on appointment.

Qualifications

• Experience as a Systems Administrator, Infrastructure Engineer, Network Engineer, ICT Technician, or similar technical role.
• Experience building and configuring Windows Server and/or Linux systems.
• Knowledge of LAN/WAN networking principles and IP networking fundamentals.
• Experience installing, configuring and troubleshooting switches, routers and network-connected devices.
• Ability to follow structured build documentation and technical processes.
• Experience supporting users and resolving technical incidents.
• Understanding of cybersecurity best practices and secure system administration.
• Strong troubleshooting and analytical skills.
• Ability to work effectively within a small, collaborative team.
• Eligibility to obtain DV Security Clearance.
• Experience working within MOD, Royal Navy, Defence Digital, or a secure government environment.
• Knowledge of VMware or virtualised infrastructure platforms.
• Experience with Active Directory, Group Policy and Identity Management.
• Understanding of Defence policies, standards and accreditation processes.
• Relevant industry certifications such as CompTIA Network+, Security+, Cisco CCNA, Microsoft certifications, or equivalent experience.

Responsibilities

• Build and configure servers, network equipment and digital platforms in accordance with approved build guides and technical procedures.
• Install, configure and maintain Windows and Linux-based systems.
• Support Layer 2 and Layer 3 network infrastructure, including switches, routers and communications equipment.
• Assist with the integration and testing of new digital capabilities before release into operational use.
• Diagnose and resolve hardware, software and networking issues.
• Conduct system upgrades, patching and configuration changes.
• Support technical trials, experimentation activities and capability demonstrations.
• Produce and maintain technical documentation, installation instructions and configuration records.
• Work closely with engineers, military stakeholders and industry partners to deliver operational outcomes.
• Ensure systems remain compliant with Defence security and governance requirements.
• Provide technical support to deployed and operational users when required.
• Participate in equipment installation activities at Defence locations.

Skills

System administration

Windows Server

Linux

LAN/WAN networking

Switches/routers

Build documentation

Cybersecurity

Troubleshooting

Teamwork

DV clearance eligibility

Tools

Cisco networking

VMware

Job description

Maritime Works (MarWorks) in Portsmouth seeks three Systems Administrator/Network Technicians to support build, integration, deployment and maintenance of digital platforms and network infrastructure for operational environments.

The roles involve working from build guides, configuring Windows and Linux systems, and ensuring secure, compliant operations. Occasional travel to Defence locations may be required, with DV clearance on appointment.