Systems Administrator - SC Clearance Needed

Mayfleet Recruitment Limited; England; On-site; GBP 50,000 - 70,000; Full time

Job summary

A leading recruitment agency is seeking an experienced Senior Systems Administrator to support and enhance complex enterprise systems and networks. This role involves ensuring stability and continuous improvement of both on-premises and cloud-based infrastructure services. Candidates should have significant experience in infrastructure engineering, proficiency in managing virtualized environments, and expertise in cloud services like Azure and AWS. Strong technical skills and leadership in systems administration are essential for this position.

Qualifications

• Significant experience as senior systems administrator in complex IT environments.
• Strong infrastructure engineering background.
• Expertise with virtualisation platforms like Hyper-V.
• Experience with Veeam for backup and continuity.
• Proficiency in Azure, AWS, and Google Cloud.
• Strong analytical and problem-solving skills.

Responsibilities

• Ensure stability, resilience, and improvement of infrastructure services.
• Lead technical guidance and hands-on support for infrastructure.
• Administer core technical systems including firewalls and VPN.
• Support backup and recovery processes using Veeam.
• Deliver engineering services across hybrid environments.
• Manage cloud services including Azure and Microsoft 365.

Skills

Senior systems administration

Infrastructure engineering

Firewall management

VPN solutions

Azure administration

Active Directory management

Citrix environments

Veeam backup and recovery

Monitoring tools (e.g. SolarWinds)

Cloud platforms (AWS, Google Cloud)

Job description

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.