Systems Engineer (Red Hat) — AMK

COMBUILDER PTE LTDAng Mo Kio, Singaporemycareersfuturepublished 11/04/2026
Must-have:Security

Responsibilities

  • Administer and maintain Red Hat Enterprise Linux (RHEL), Windows servers and VMware vSphere/ESXi environments.
  • Perform system installation, configuration, patching, upgrades and security hardening.
  • Monitor system health and performance, analyse logs, troubleshoot incidents and conduct root cause analysis.
  • Plan and support infrastructure migrations, upgrades and capacity requirements.
  • Manage SAN/NAS storage, backups and recovery to meet operational requirements.
  • Administer Active Directory, DNS, DHCP, Group Policy and related services.
  • Ensure compliance with cybersecurity requirements and maintain system documentation and change records.
  • Work with technical and project teams to support daily operations and infrastructure initiatives.
  • Participate in a monthly on-call roster supporting a 24/7 environment.

Requirements

  • Diploma or degree in Computer Science, Information Technology or a related discipline.
  • Minimum 4–5 years of experience in infrastructure support or systems administration.
  • Hands-on experience with Red Hat Enterprise Linux (RHEL) and VMware vSphere/ESXi.
  • Experience with Windows Server, Active Directory, DNS, DHCP and Group Policy.
  • Knowledge of security hardening, system monitoring, troubleshooting, storage, backup and recovery.
  • Good communication and problem-solving skills, with the ability to work independently and in a team.
  • Willingness to provide scheduled standby and on-call support.
  • VMware NSX or MongoDB experience is an advantage.