Linux Level 2 Support Engineer - Yishun

Seeking experienced Linux Level 2 Support Engineer to join on 1 yr project renewable assignment at Ang Mo Kio.

Office hours

Offer Package: up to S$7500+ 1 month Performance Bonus + S$30 HP Claim monthly

What you will do:

• Administer and support Linux-based servers (RHEL, CentOS, Ubuntu, etc.) in production and enterprise environments
• Perform OS patching, kernel updates, and third-party application updates (e.g., Java, OpenSSL)
• Manage daily health checks for system performance, services, and backup statuses
• Administer and monitor NetBackup – verify daily jobs, conduct restore exercises, and upgrade backup agents
• Manage and troubleshoot Linux-based antivirus solutions and updates.
• Configure and troubleshoot services such as SSH, SFTP, and syslog
• Manage logical volumes, disk partitions, and file systems.
• Monitor system performance and resource usage using tools like top, iostat, vmstat, sar, and netstat.
• Maintain and manage Apache, Tomcat, or web servers – including installation, upgrade, and configuration.
• Administer crontab jobs and ensure scheduled tasks run successfully
• Manage system logging and integration with centralized logging (e.g., Splunk)
• Review system logs daily to identify performance bottlenecks, errors, or security events.
• Ensure secure system configurations and compliance with organizational security policies.
• Participate in vulnerability management and remediation of Linux security advisories (e.g., CVEs).
• Perform regular backup restore tests to validate recovery procedures.
• Maintain internal documentation and standard operating procedures for support tasks.
• Participate in on-call rotations and scheduled after-hours maintenance when required

What we are looking for :

• Strong knowledge of Linux distributions (RHEL, CentOS, Ubuntu, Oracle Linux)
• Min 3-5 yrs in similiar jobscope
• Experience with patching tools (e.g., yum, dnf, apt, or automation via Ansible/YUM repos)
• NetBackup administration – job monitoring, agent installation, and recovery operations

• Knowledge of system performance monitoring tools (top, htop, vmstat, iostat, free, etc.)
• Experience with antivirus tools on Linux and updating mechanisms.
• User/group management via /etc/passwd, /etc/group, usermod, chage, and integration.
• Service management using systemd, chkconfig, and legacy init.d scripts
• Apache, Tomcat, or Nessus server administration – configuration, upgrades, and logs
• LVM and disk partitioning tools (lsblk, fdisk, parted, pvcreate, lvcreate, etc.)
• Log management using rsyslog, journalctl, and integration with Splunk.
• Experience with cron jobs and automation of routine system tasks.
• Basic firewall and SELinux troubleshooting
• Exposure to tools like Ansible (preferred).
• Understanding of security hardening, vulnerability remediation, and CVE patching.
• Possessing RHCSA, RHCE, or LFCS is at an advantage