Linux System Engineer - #1119090

We are looking for a Linux Infrastructure Engineer with 3 to 5 years of hands-on experience managing and supporting enterprise-grade Linux systems in an on-premises environment. The successful candidate will be responsible for ensuring the stability, performance, and security of Linux-based infrastructure across production, DR, Dev Ops and stagging environments.

This role involves close collaboration with infrastructure and application teams to maintain a reliable and secure IT infrastructure foundation.

Key Responsibilities

• Install, configure, and maintain Linux servers (RHEL, CentOS, Ubuntu, or SUSE) across production, DR, Dev Ops and Stagging environments.

• Perform system administration tasks, including patching, performance tuning, log management, and troubleshooting.

• Manage VMware or physical server environments, ensuring system availability and capacity planning.

• Participate in infrastructure lifecycle management, including system upgrades, migrations, and hardware refreshes.

• Support backup, restore, and disaster recovery (DR) operations and periodic DR exercises.

• Implement OS hardening, security compliance, and access control based on corporate policies.

• Maintain monitoring, alerting, and reporting for system performance and uptime using enterprise tools (e.g., Grafana, Solarwinds).

• Create and maintain technical documentation, system inventories, and change records.

• Collaborate with Infrastructure teams to ensure seamless integration and optimal infrastructure performance.

• Provide support during scheduled maintenance windows and participate in standby support for critical infrastructure incidents.

Requirements

• Diploma or Bachelor’s degree in Information Technology, Computer Science, or related discipline.

• 3–5 years of solid experience in Linux infrastructure administration in enterprise environments.

• Hands-on experience with RHEL/CentOS and VMware virtualization.

• Strong understanding of infrastructure components — networking, DNS, NTP, storage, and backup.

• Familiarity with hardware platforms (Dell, HP, IBM) and firmware management.

• Experience with system patching and configuration management tools (YUM, DNF, Ansible, Puppet).

• Good understanding of monitoring and alerting systems.

• Knowledge of shell scripting or automation (Bash, Python).

• Familiarity with change management and ITIL-based operational procedures.

Good to Have

• Experience with DR site operations and failover planning.

• Knowledge of containerization (Podman).

• Exposure to backup and restore tools (Veeam, NetBackup, CommVault etc).

• Relevant certifications such as RHCSA/RHCE, Linux+, or VMware VCP.

Soft Skills

• Strong analytical and troubleshooting skills.

• Responsible, disciplined, and able to work independently under minimal supervision.

• Good communication and teamwork, able to coordinate with cross-functional teams.

• Proactive in identifying and implementing infrastructure improvements.

5 day week @ AMK area (Neeed to travel to site (either Changi Prison/ Harbourfront area)

(Rotating Standby)

Maestro HR

damien lee tian hong

R1106726

16C8462