System Manager (JD#11288)
6000 - 7000 SGDTemporary
SCIENTE INTERNATIONAL PTE. LTD.
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 View email address on mycareersfuture.gov.sg at the earliest.
When you apply, you voluntarily consent to the disclosure, collection and use of your personal data for employment/recruitment and related purposes in accordance with the SCIENTE Group Privacy Policy, a copy of which is published at SCIENTE’s website (
Confidentiality is assured, and only shortlisted candidates will be notified for interviews.
EA Licence No. 07C5639
Vacancy posted 6 days ago
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