Lead Engineer/ Engineer, Joint Application Infrastructure Services Home Team Science and Technology Agency (HTX) | Engineering Permanent/Contract Closing in 3 day(s)

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

What the role is:

HTX is Singapore's Science and Technology agency that brings together diverse scientific and engineering capabilities to develop transformative, operationally ready solutions for public safety. As a statutory board under the Ministry of Home Affairs, HTX works at the forefront of science and technology to empower the Home Team with cutting‑edge capabilities. Guided by our mission to amplify, augment and accelerate the Home Team's advantage, we are committed to keeping Singapore the safest place on planet Earth.The ICT Infrastructure Sustainment Centre is dedicated to delivering robust and reliable information and communication technology (ICT) infrastructure solutions that empower the operations of the Ministry of Home Affairs (MHA).The jobholder is responsible for a hands‑on technical lead to manage the mission‑critical infrastructure that powers MHA/HTX operations. In this role, you will not just oversee systems; you will be the technical authority ensuring the availability, security, and performance of enterprise‑wide server and network ecosystems.If you thrive in complex environments involving Network, Active Directory, Shared Storage, and Hybrid Cloud networks, and prefer getting your hands dirty with technical problem‑solving over pure administrative oversight.

What you will be working on:

• Hands‑On Infrastructure Management: Directly manage and maintain enterprise services including Network equipment, Active Directory, File/Application Servers, Hypervisors, and Storage systems. Ensure optimal performance of network connectivity and server availability.
• System Life‑Cycle Engineering: Drive the end‑to‑end lifecycle of ICT systems—from technical evaluation and procurement to deployment, patching, sustainment, and eventual refresh/migration.
• Technical Problem Solving: Serve as the Tier‑3 escalation point for complex server and network incidents. Troubleshoot high‑priority issues to minimize downtime for user operations.
• Vendor & Warranty Management: Technical ownership of vendor deliverables. validate that systems in warranty/maintenance phases meet rigorous performance specifications before handover.
• Security & Compliance: Implement and enforce security best practices (system hardening, GPO management). Lead technical remediations for IT audits and compliance checks.

What we are looking for:

• Tertiary qualification in Electrical Engineering, Computer Science, IT, or related technical disciplines.
• Minimum 5 years of hands‑on working experience in system/ network administration, infrastructure architecture, or cloud operations.
• Proven track record in maintaining 24/7 operational systems with strict SLAs and rapid response times.
• Proactive self‑starter capable of driving technical projects with minimal supervision.
• Deep Knowledge of Active Directory, Group Policy Objects (GPO), Domain Controllers, File/App Servers, and Patch Management.
• Hands‑on experience with Hypervisors (VMware/Hyper‑V/ Nutanix) and designing/operating large‑scale private/public cloud infrastructure.
• Management of Shared Storages (SAN/NAS), Backup Appliances, and understanding of enterprise networking concepts (VLANs, Load Balancing, Routing, Firewalls) required for systems interconnectivity.
• Experience conducting and remediating IT/Compliance Audits. Strong grasp of cybersecurity frameworks and system hardening.
• Proficiency with ITSM tools (e.g. ServiceNOW) and Systems Engineering lifecycle management.

All new hires are appointed on a two‑year contract in the first instance and will be assessed and considered for permanent tenure over time, based on performance. As part of the shortlisting process for this role, you may be required to complete a medical declaration and/or undergo further assessment. All applicants will be updated on the status of their applications within 4 weeks upon closing of the advertisement.

About Home Team Science and Technology Agency (HTX)

HTX is the world’s first Science and Technology agency that integrates a diverse range of scientific and engineering capabilities to innovate and deliver transformative and operationally‑ready solutions for homeland security. As a statutory board of the Ministry of Home Affairs and integral to the Home Team, HTX works at the forefront of science and technology to empower Singapore’s frontline of security. Our shared mission is to amplify, augment and accelerate the Home Team’s advantage and secure Singapore as the safest place on planet earth.