IT Infrastructure Engineer

Responsibilities

• Administer and maintain on-premises infrastructure, including Linux and Windows servers, Proxmox virtualization, storage, switches, and access points, ensuring system reliability, availability, and scalability.
• Monitor infrastructure performance, respond to alerts, optimize monitoring thresholds, and conduct root cause analysis to prevent recurring incidents.
• Maintain infrastructure security through regular patching, vulnerability remediation, security hardening, and secure network configuration across TUMO sites.
• Manage backup and recovery operations, regularly test restoration procedures, and support IT Disaster Recovery planning and testing.
• Administer user access across Google Workspace, Atlassian Cloud, MDM, and other systems, while managing endpoint enrollment, configuration baselines, and compliance for GNU/Linux, macOS, and Windows devices.
• Act as an escalation point for infrastructure-related issues, providing technical guidance to the Service Desk and IT teams at TUMO International centers.
• Collaborate with other teams on infrastructure and security projects, including Smart Systems initiatives, web domains, PKI/SSL certificates, hosting, and technical assessments of suppliers and equipment.
• Maintain accurate infrastructure documentation, asset and network records, runbooks, and operational procedures.
• Support compliance and certification audits by providing operational evidence and ensuring adherence to relevant security standards.
• Plan and implement infrastructure changes by assessing risks, coordinating with stakeholders, documenting procedures, and preparing rollback plans. Report infrastructure performance against agreed parameters, communicate progress and emerging risks to the

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