Lead Infrastructure Engineer - Hybrid Cloud & Enterprise IT

Republic Polytechnic; Singapore; On-site; SGD 120,000 - 160,000; Full time

Job summary

HTX in Singapore is seeking an experienced ICT Infrastructure Engineer to lead hands-on management of mission-critical enterprise infrastructure, spanning network, AD, storage, and private/public cloud environments. You will drive lifecycle activities from evaluation and deployment to patching and migration, while serving as the Tier-3 escalation point for complex incidents.

The role emphasizes security, compliance, and technical remediations for audits, with a strong focus on GPOs, patch

Qualifications

• A tertiary qualification in Electrical Engineering, Computer Science, IT, or related technical disciplines.
• Minimum 5 years of hands-on experience in system/network administration, infrastructure architecture, or cloud operations.
• Experience maintaining 24/7 operational systems with strict SLAs.
• Proactive self-starter capable of driving technical projects with minimal supervision.
• Deep knowledge of AD, GPO, Domain Controllers, File/App Servers, and Patch Management.
• Hands-on experience with hypervisors and designing large-scale cloud infrastructure.
• Experience with SAN/NAS storage, backups, and enterprise networking concepts.
• Experience conducting IT/compliance audits and strong security fundamentals.
• Proficiency with ITSM tools such as ServiceNOW.

Responsibilities

• Hands‑On Infrastructure Management: manage enterprise services including network gear, AD, file/app servers, hypervisors and storage.
• System Life‑Cycle Engineering: oversee lifecycle from evaluation to deployment, patching and refresh.
• Technical Problem Solving: act as Tier‑3 escalation for server and network incidents to minimize downtime.
• Vendor & Warranty Management: own vendor deliverables and ensure warranty/maintenance meets specs.
• Security & Compliance: implement hardening, GPOs, and support IT audits and compliance efforts.

Skills

Active Directory management

Group Policy management

Network administration

Cloud operations

Infrastructure architecture

IT security basics

ITSM knowledge

Education

Tertiary qualification in Electrical Engineering, Computer Science, IT, or related technical disciplines

Tools

VMware

Hyper-V

Nutanix

ServiceNOW

Job description

HTX in Singapore is seeking an experienced ICT Infrastructure Engineer to lead hands-on management of mission-critical enterprise infrastructure, spanning network, AD, storage, and private/public cloud environments. You will drive lifecycle activities from evaluation and deployment to patching and migration, while serving as the Tier-3 escalation point for complex incidents.

The role emphasizes security, compliance, and technical remediations for audits, with a strong focus on GPOs, patch