Systems Administrator

- Administer Microsoft 365 services across multiple customer tenants including users, groups, licenses, email, collaboration, and file services - Manage identity and access including authentication issues, MFA, permissions, and access troubleshooting - Administer Microsoft Intune, including device enrollment, configuration profiles, compliance policies, security baselines, and endpoint protection - Apply agreed security hardening standards across endpoints, Microsoft 365, and identity services - Investigate and resolve complex user, device, and access-related issues - Provide second- and third-line support across cloud, server, network, and endpoint platforms - Administer and support customer network infrastructure, including firewalls, switches, LAN, WAN, and VPNs - Configure and troubleshoot firewall rules, VPN connectivity, and network security controls - Diagnose and resolve network performance, connectivity, and security issues - Support server and virtualised environments as part of customer infrastructure - Act as an escalation point for service desk engineers for complex or recurring issues - Take ownership of assigned incidents and problems through to resolution - Contribute to infrastructure, security, and network projects including upgrades, migrations, and new deployments - Attend customer sites for support, infrastructure work, and project delivery - Liaise with customers, ISPs, vendors, and third-party support providers as required - Identify technical risks, inefficiencies, and improvement opportunities within customer environments - Make clear technical recommendations to Account Managers and the Technology Director relating to system improvements, security uplift, and potential project or service opportunities - Maintain accurate documentation, tickets, and change records - Work in line with SLAs, security requirements, and company procedures - Maintain confidentiality and data protection standards at all times - Support junior engineers through guidance and escalation assistance - Carry out additional duties as required by the Technology Director