Senior / Systems & Network Engineer

2 weeks ago

Singapore Ren Ci Full time

Join to apply for the Senior / Systems & Network Engineer role at Ren Ci Hospital .

Location

Novena

Job Category

Administration

Posting Date

23 Sept 2025

Responsibilities
  • Perform Systems Administration: Maintain Windows servers, virtualization platforms, and storage solutions. Manage Active Directory, DNS, DHCP, and Group Policy. Ensure high availability and disaster recovery with backups and replication. Monitor system performance, troubleshoot issues, and apply patches and updates.
  • Maintain Network Services: Implement network design, configure, and maintain LAN, WLAN, and VPN infrastructure, managing firewalls, switches, and routers. Implement and monitor network security policies, intrusion detection, and access control. Optimize network performance, troubleshoot connectivity issues, and ensure redundancy.
  • Ensure Security and Compliance: Implement cybersecurity best practices, monitor threats, and manage endpoint protection and vulnerability assessments. Ensure compliance with regulations (e.g., HIB). Conduct security audits and enforce policies on user access, encryption, and authentication.
  • Documentation and Reporting: Create and maintain network documentation, including network diagrams, configurations, and procedures.
  • On Rotating Roster: Provide standby support during off-office hours and weekend on a rotational basis.
Qualifications / Requirements
  • Bachelor’s degree in information technology or related field.
  • With networking, system and security certifications such as CCNA, CCNP, CCIE, Microsoft certified Azure Solutions Architect and/or Windows Server Administrator, CISSP, CISM and CompTIA Security.
  • At least 5 years of experience providing systems, network and cybersecurity operational support.
  • Hands-on experience with servers, network and security devices, firewall, switches, routers, load balancers and wireless solutions.
  • Strong Knowledge of Microsoft core technologies (i.e., Windows Server, Active Directory, Microsoft Azure, Microsoft Entra and Microsoft 365).
  • Good knowledge of network routing, switching technologies and protocols (i.e. TCP/IP, VLANs, VPNs), cybersecurity frameworks (e.g., NIST, MITRE ATT&CK) and compliance standards and best practices to ensure the infrastructure is secure.
  • Proficiency in scripting languages such as PowerShell or Python for automation.
  • Strong team player, problem solving and analytical skills and learning capability and committed to self-development.
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