Senior IT Infrastructure / Systems Engineer

<br><strong>Main responsibilities</strong><p><ul><li>Design, build, and support corporate networks, servers, storage, telephony, and systems</li><li>Implement secure, fault-tolerant infrastructure solutions</li><li>Provide technical leadership and architectural direction across multiple teams</li><li>Act as an internal escalation point for complex infrastructure issues</li><li>Plan and execute projects across the infrastructure landscape</li><li>Lead and participate in infrastructure, systems, and application projects</li><li>Migrate systems from on‑premise to co‑location and cloud environments</li><li>Mentor less senior staff</li><li>Manage vendors for hardware, software, and service troubleshooting</li><li>Help define and execute enterprise-wide infrastructure strategy</li><li>Develop solutions supporting international expansion</li></ul></p><br><strong>Requirements</strong><p><span><strong>Technical Requirements</strong><br></span><ul><li><span style="font-size:inherit;">8+ years of hands-on experience with <strong>enterprise LAN/WAN, servers, and storage</strong></span></li><li><span style="font-size:inherit;">Strong experience with <strong>routing, switching, firewalls, wireless infrastructure</strong> (physical &amp; virtual)</span></li><li><span style="font-size:inherit;">Hands-on experience with <strong>VMware ESXi, vSphere, and vCenter</strong></span></li><li><span style="font-size:inherit;">Experience administering <strong>Okta SSO / MFA</strong></span></li><li><span style="font-size:inherit;">Extensive experience with <strong>Microsoft Server OS and Active Directory</strong></span></li><li><span style="font-size:inherit;">Cloud experience with <strong>AWS and Azure</strong> (cloud-first approach)</span></li><li><span style="font-size:inherit;">Disaster recovery and business continuity design experience</span></li><li><span style="font-size:inherit;">Microsoft collaboration stack: <strong>O365, Teams, SharePoint, OneDrive</strong></span></li><li><span style="font-size:inherit;">Strong <strong>scripting</strong> skills</span></li><li><span style="font-size:inherit;">Patch deployment experience</span></li><li><span style="font-size:inherit;">Network and systems monitoring experience (plus)</span></li><li><span style="font-size:inherit;"><strong>Splunk</strong> experience (plus)</span></li><li><span style="font-size:inherit;">ITIL experience (plus)</span></li><li><span style="font-size:inherit;">Linux experience (plus)</span></li><li><span style="font-size:inherit;"><strong>Cisco Meraki</strong> experience (plus</span></li></ul><strong>Education &amp; Certifications</strong><br><ul><li><span style="font-size:inherit;">Minimum AA degree in Information Systems or equivalent experience</span></li><li><span style="font-size:inherit;">Cisco certification (plus)</span></li><li><span style="font-size:inherit;">O365 certifications (plus)</span></li><li><span style="font-size:inherit;">AWS certifications (plus)</span></li><li><span style="font-size:inherit;">Windows certifications (plus)</span></li></ul></p><p>Find <a href="https://www.arbeitnow.co.uk">Jobs in United Kingdom</a> on Arbeitnow</a>