Senior Systems Administrator - SC Clearance Needed

CANDIDATES REQUIRE CURRENT, ACTIVE SC CLEARNACE FOR THIS ROLE - PEASE APPLY ACCORDINGLY

Role Purpose
The role requires an experienced technical professional to support, enhance, and secure complex enterprise systems and networks. Working as a senior systems administrator, the postholder will ensure the stability, resilience, and continuous improvement of both on-premises and cloud-based infrastructure services.

Key Responsibilities

• Serve as a senior team member within systems administration, providing leadership, technical guidance, and hands-on support across critical infrastructure services.

• Administer and maintain core technical systems including Firewalls, load balancers, VPN solutions, wireless networks, LAN infrastructure, and associated security technologies.

• Manage virtualisation platforms such as Hyper-V and Virtual Machine Manager, including configuration, performance optimisation, and life cycle management of virtual machines.

• Support backup, recovery, and business continuity processes using Veeam.

• Deliver robust infrastructure engineering services across hybrid environments, supporting on-premises systems and cloud platforms such as Azure, AWS, and Google Cloud.

• Administer cloud services including Azure cloud resources, Microsoft 365 (Teams, Exchange, SharePoint, etc.), and associated identity and security configurations.

• Maintain and enhance enterprise monitoring solutions, including SolarWinds, to ensure proactive issue detection and service optimisation.

• Support and manage Citrix environments, contributing to application delivery, performance tuning, and secure remote access capabilities.

• Perform advanced administration of Active Directory, including group policies, identity life cycle management, and domain services.

• Conduct Firewall administration tasks such as rule optimisation, policy configuration, troubleshooting, patching, and logging/analysis.

• Provide expertise in deploying, configuring, and maintaining Fortinet products within the network and security landscape.

• Work with cross-functional teams to support incident response, problem resolution, and continuous service improvement.

• Produce and maintain clear technical documentation, operational procedures, and configuration standards.

Essential Experience & Skills

• Significant, proven experience operating as a senior systems administrator or technical leader in complex IT environments.

• Strong infrastructure engineering background with hands-on experience across Firewalls, load balancers, VPNs, wireless networks, and LAN technologies.

• Expertise with Hyper-V, Virtual Machine Manager, and virtualised infrastructure administration.

• Experience with Veeam for backup, restore, and continuity operations.

• Proficiency with Azure, AWS, Google Cloud, and wider cloud administration.

• Strong administration capabilities across Microsoft 365, including Teams, Exchange, and related services.

• Experience using SolarWinds or similar monitoring tools.

• Administration and support experience of Citrix environments.

• Advanced skills in Active Directory management and configuration.

• Experience working with Fortinet technologies, including deployment, management, and troubleshooting.

• Strong analytical, problem-solving, and stakeholder communication skills.