The opportunity We are looking for a Senior Systems Engineer to join our IT Department in Watford. This is a hands-on role with responsibility for the stability, security, and continuous improvement of our internal systems. You will support day to day operations, lead assigned projects, and work closely with stakeholders across the business to deliver practical, reliable improvements. What you will be doing Build, maintain and support secure, compliant business systems. Own and improve core IT services across Microsoft 365 and on-prem infrastructure. Administer and support virtualised environments, server platforms, and identity services. Manage endpoint and device configuration to support secure and consistent user experiences. Maintain backup and recovery capability, including verification of successful restores. Support governance activities and contribute towards ISO requirements and internal controls. Work with other departments to improve processes, increase efficiency, and deploy enhancements. Take ownership of allocated projects, driving delivery through to completion. Maintain clear documentation and follow internal procedures and policies. Essential skills and experience We are looking for strong, practical experience across most of the following areas: Virtualisation and infrastructure Hyper-V and virtualisation Windows Server administration and troubleshooting Active Directory administration and group policy Microsoft cloud and endpoint management Office 365