System Manager (Windows) - Public Sector

We are looking for an experienced System Manager to lead the operations, maintenance, security, and lifecycle management of mission-critical IT infrastructure supporting public sector systems. You will manage engineering teams and vendors while ensuring high availability, operational resilience, and compliance with Government ICT requirements. Key Responsibilities • Lead system operations, maintenance, and support across enterprise infrastructure and platform environments. • Manage system availability, performance, capacity, SLA compliance, and technology lifecycle planning. • Lead incident, problem, change, release, and configuration management based on ITIL practices. • Oversee patching, vulnerability remediation, system hardening, security reviews, and technical risk management. • Manage backup, Disaster Recovery (DR), Business Continuity (BCP) and recovery exercises. • Ensure compliance with IM8, GCC, PDPA , cybersecurity policies, and government audit requirements. • Provide technical oversight for infrastructure upgrades, architecture changes, migrations, and technology refresh initiatives. • Manage vendors, support contracts, operational deliverables, and service performance. • Lead and mentor System Engineers and infrastructure support teams. • Provide management reporting on service performance, risks, incidents, capacity, and compliance. Requirements • Degree in Computer Science, Information Technology, Engineering, or related discipline. • Min 5-8 years of infrastructure/system management experience , including 5+ years leading technical teams or vendors. • Strong experience with Windows Server, VMware, storage, backup/recovery, monitoring, and enterprise infrastructure . • Experience with Microsoft Azure, hybrid cloud, and GCC environments is highly desirable. • Good understanding of infrastructure security, vulnerability management, DR/BCP, and ITIL processes. • Experience supporting Singapore Government, Defense, Healthcare, Statutory Boards, or regulated environments preferred. • Strong leadership, vendor management, stakeholder communication, and problem-solving skills. • Certifications such as ITIL, Microsoft Azure, VMware VCP, CISSP/CISM, or PMP are advantageous.