Lead Engineer/ Engineer, Joint Application Infrastructure Services

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. Responsibilities The principal accountabilities of the job holder are to: • 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. Requirements Candidates should possess: • 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. #LI-FL1