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Senior System Engineer (JD#11298)

5 000 – 5 500 $
Contract3–6 yearsOn-siteSingapore

Location

CHANGI BUSINESS PARK CENTRAL 2, THE SIGNATURE

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About this job

Job Summary

We are looking for a hands-on Senior System Engineer to lead and support 24x7 mission-critical systems in secure on-premises environments. The role requires strong technical expertise and operational leadership, with hands-on involvement in deployments, critical incidents, and emergency recovery activities.

Mandatory Skill-set

  • Must have 5 years of experience in Systems Administration, Infrastructure Support, or Mission-Critical environments;
  • Hands-on experience with Windows Server, Active Directory, GPO, and Microsoft SQL Server;
  • Experience with VMware, Layer 2/3 networking, and Splunk monitoring;
  • Knowledge of backup/recovery, disaster recovery, patching, and cybersecurity solutions;
  • Experience supporting 24x7 on-premises systems;
  • Strong troubleshooting, problem-solving, and analytical skills;
  • Willing to provide on-site support for critical incidents and emergency recovery, including after-hours, weekends, and public holidays.

Desired Skill-set

  • Experience in air-gapped, secure, or regulated environments is preferred.

Responsibilities

  • Administer and maintain Windows servers, workstations, and Active Directory environments;
  • Manage antivirus definitions, security patches, OS, software, and firmware upgrades;
  • Perform SSL certificate renewal and management across all system components;
  • Maintain and manage VMware virtualization infrastructure including ESXi, vCenter, vSAN, and NSX;
  • Monitor and manage system logs using Splunk and Syslog tools;
  • Troubleshoot system issues and coordinate with OEM vendors for root cause analysis and resolution;
  • Perform monthly preventive maintenance, system health checks, and reporting;
  • Support system deployment and change activities during off-peak hours;
  • Manage L1–L3 incident tickets and service requests;
  • Provide 24/7 Level 2 operational support based on a scheduled rotation.

Should you be interested in this career opportunity, please send in your updated resume to [email protected] 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 (https://www.sciente.com/privacy-policy).

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

EA Licence No. 07C5639

Market insight

9% above median
4 800 $

Based on 75 102 offers with salary for this country

Full salary breakdown

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The employer lists 5 000 – 5 500 $ for this role at SCIENTE INTERNATIONAL PTE. LTD. in Singapore. For comparison, the local market median is about 4 800 $ based on 75 102 similar offers.

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