System Manager

Job Summary

We are looking for an experienced System Manager to manage 24x7 mission-critical infrastructure, leading system/application engineers and ensuring availability, cybersecurity, incident recovery, and operational continuity.

Mandatory Skill-set

• Degree/Diploma in Computer Science, IT, Computer Engineering, or related field;
• Must have 6 years of experience in enterprise infrastructure, systems administration, or mission-critical environments, include 3 years of leading a team;
• Must have 3 years of experience managing Operations & Maintenance (O&M) activities for critical systems;
• Strong hands-on experience with Windows Server 2019+/Windows 11, Active Directory, GPO, Microsoft CA, PKI, and SSL/TLS certificate management;
• Must have VMware experience, including ESXi, vCenter, vSAN, and vSAN Stretch Cluster;
• Hands-on experience in patch management, including WSUS Offline and manual WSUS catalogue imports;
• Hands-on experience with Microsoft SQL Server, endpoint security (Trellix/SEP), cybersecurity technologies, and enterprise backup/restore solutions;
• Experience troubleshooting 24x7 mission-critical, highly available, on-premise environments, including critical incidents and service recovery, is essential;
• Willingness to support after-hours deployments, maintenance windows, and on-call duties.

Desired Skill-set

• Good to have experience in Splunk Enterprise / Syslog / Kiwi Syslog VMware NSX.
• Aviation systems experience in airport operations, air traffic management, surveillance, or aviation support systems.

Responsibilities

• Lead day-to-day operations of a 24x7 mission-critical system with a team of system engineers;
• Manage system availability, performance, security, and operational readiness;
• Work closely with the Service Delivery Manager (SDM) to plan and execute maintenance, patching, upgrades, and service improvement initiatives;
• Lead incident response, root cause analysis, service recovery, and operational reporting activities with the SDM;
• Review and approve deployment plans, impact assessments, risk evaluations, and rollback strategies;
• Manage infrastructure lifecycle activities, including server, workstation, virtualization, network, and COTS software upgrades;
• Ensure compliance with cybersecurity, backup, disaster recovery, and configuration management requirements;
• Identify operational risks, technology gaps, and potential single points of failure, and implement effective mitigation measures;
• Provide technical leadership, mentoring, and guidance to the operations team;
• Engage stakeholders, customers, and vendors on operational matters and service delivery performance.

Should you be interested in this career opportunity, please send in your updated resume to [Confidential Information] at the earliest.

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Confidentiality is assured, and only shortlisted candidates will be notified for interviews.

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