Senior Systems Administrator

About the job

Role Purpose The Senior Systems Administrator is responsible for providing systems administration and general IT support across the LMSA environment, including retail stores. The role ensures the smooth operation, maintenance and support of IT systems, infrastructure and end-user devices. It involves troubleshooting technical issues, managing system performance and ensuring reliable IT services across the business. This is a hands-on technical role focused on delivering effective IT solutions and supporting daily business operations, with no management responsibilities. Key Responsibilities - Manage incidents and service requests end-to-end in ServiceNow, keeping tickets updated and closed out and ensuring all work is logged. - Provide Level 2 end-user and endpoint support for Windows 10/11, macOS and basic Linux, including printing. Create a positive, welcoming, and helpful shopping experience. - Perform incident triage and resolution, including changes after trading hours when required. - Provide Level 2 support for in-house business applications - Read logs, check system services and make small configuration changes. - Coordinate with the LMSA development team. - Escalate Level 3 and higher issues to Adeo HQ in Lille, France. - Perform basic FortiGate policy and object updates and troubleshooting, and provide VPN support. - Maintain runbooks, diagrams and technical documentation, and provide a monthly operations report. - Administer and troubleshoot Workspace ONE UEM for Windows, macOS, iOS and Android devices. This covers enrolment (including mobile fleet devices), profiles, compliance and remote remediation. - Troubleshoot Google Workspace Mail, Drive and Meet. - Assist with Meraki configuration, including SSIDs, VLANs and Wi-Fi tuning, and coordinate with ISPs. - Provide Level 2 support for retail store hardware, endpoints and peripherals, remotely and through field service, and handle RMAs. - Deliver IT support during retail store openings, including hardware and software rollout. - Support the mobile fleet: SIM swaps, line changes, APN configuration, usage queries, and asset and IMEI tracking. Qualifications & Experience - Matric, plus an IT diploma or degree, or CompTIA A+ and Network+ certifications. - Experienced candidates only; junior candidates will not be considered. - Relevant professional certifications will be an added advantage. - Proven experience managing and maintaining IT infrastructure, including servers, networks and storage systems. - Ability to monitor system performance and network connectivity, troubleshoot and resolve technical issues promptly. - Experience leading and mentoring junior IT staff, providing guidance and training where required. - Ability to identify, assess and mitigate risks associated with IT infrastructure and system changes. - Ability to work within least privilege access principles, Privileged Access Management (PAM) and established change control processes.

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