We’re looking for an Infrastructure & Network Engineer to join our Technology team supporting One Stop’s core IT infrastructure across our datacentre and cloud environments. This is a hands-on, technical role supporting both day-to-day operations and delivering infrastructure projects across networking, servers, and virtualisation platforms. You’ll work closely with the infrastructure team to maintain a reliable, secure, and scalable environment supporting our stores, distribution sites, and support centre. Support and maintain core infrastructure: Windows Server, Active Directory, DNS, DHCP Manage Microsoft 365 / Entra ID environments Maintain server hardware (Dell, SuperMicro) and storage (SAN, NAS) Investigate and resolve incidents and escalations Work with internal teams and third parties to troubleshoot issues Support network infrastructure (Cisco switching – Core, Access, Datacentre) Maintain firewalls and network security controls Assist with firmware upgrades and network changes Troubleshoot connectivity issues Support Nutanix and Hyper-V platforms Assist with patching, upgrades, and platform maintenance Monitor performance and capacity Ensure platform availability Support delivery of infrastructure projects (upgrades, migrations, new tech) Assist with network refreshes and platform implementations Work alongside Infrastructure Manager and Solutions Architect Ensure minimal disruption during delivery Support patching and vulnerability remediation Maintain secure, best-practice-aligned systems Assist with security alerts and risk response Collaborate with Cyber Security team Follow ITSM processes (Incident, Change, Problem Management) Participate in out-of-hours support and maintenance Maintain clear system and change documentation 3 years’ experience in an infrastructure or technical support role Strong knowledge of Windows Server, Active Directory, DNS, DHCP, and Azure / Entra Solid understanding of networking fundamentals (switching, VLANs, basic routing) Experience supporting live production environments Strong troubleshooting and problem-solving skills Full UK driving licence and access to own transport (travel to sites required) Experience with Cisco networking (switching, firewalls) Knowledge of virtualisation platforms (Nutanix, Hyper-V) Experience with Microsoft Azure or hybrid environments Familiarity with endpoint management tools (SCCM, Intune, ManageEngine) Exposure to infrastructure projects or migrations Qualifications Relevant IT degree or equivalent experience Industry certifications (e.g. Cisco CCNA, Nutanix, Microsoft) are advantageous