Position: Senior Infrastructure Engineer Location: Portsmouth Salary: £500 to £600 p.d inside IR35 Security Clearance: SC Clearance Required About the Role Step into a mission-critical role supporting national defence infrastructure. We're seeking a seasoned engineer with deep expertise in Exchange, Active Directory, and virtualised environments to join a high-trust team delivering secure, scalable solutions. What you … ll bring: Mastery of Exchange 2010/2016, AD (Multi-Forest), GPO, and PowerShell Strong grasp of SSO, PKI, DNS, and Windows Server (2012-2025) Experience with VMware, Trend IMSVA, and Enterprise Vault Bonus points for MECM, Sendmail, IronPorts, and Microsoft certs Why this role? Work with cutting-edge tech in a secure, high-impact environment Collaborate with experts More ❯
oin this established Cyber team on a large Defence site, working within the Security Services environment whilst also performing administration duties across Windows and Linux based Server Infrastructure, Security Appliances, Network Infrastructure, Virtual Environments and Storage. This is an opportunity to become involved in the world of Defence and Science where no 2 days are the same. Initially … configurations and fault finding). Recent experience of working within security environments. Understanding of Networks, Routers, DMZ and Switches. Extensive Core Linux Or MS Windows administration skills. Experience of VMware vSphere virtualisation systems. Good understanding and ability to perform root cause analysis across a range of protocols and topologies (TCP/IP, HTTP & HTTPS, SMTP, FTP, DNS, DHCP, X500 More ❯
Knowledge & Skills: Knowledge IT Networking: Mostly Cisco but other vendors such as F5, McAfee. Experience configuring, troubleshooting and upgrading network devices is required. Need knowledge of LAN and WAN infrastructure (switches, routers, firewalls). IT Monitoring: Knowledge of the likes of WhatsUpGold, Microsoft Configuration Manager, System Centre Operations Manager, SNMP, SysLog Ability to implement and manage a Cisco VOIP … manage integration of separate IT systems, including at different security classifications. Skills: Microsoft Server Administration: Including Active Directory, DNS, DHCP, Group Policies, Disk Management, Troubleshooting, Updates and hardware repair. VMware/Microsoft hypervisor administration: Ability to design, implement and manage a virtual environment. IT Testing: General IT trouble shooting skills IT Security: Experience applying security patches, using WSUS, auditing More ❯
Employment Type: Contract
Rate: Up to £56.44 per hour + Umbrella Rate (Inside IR35)