Unix System Administrator

22 hours ago


Kuala Lumpur, Kuala Lumpur, Malaysia Lancesoft Malaysia Full time

Unix Senior Administrator

Role Summary

Own the stability, performance, security, and automation of enterprise UNIX/Linux environments (AIX, Solaris, RHEL). Lead incident resolution, capacity planning, patching/compliance, and high-availability solutions across mission-critical platforms.

Key Responsibilities

  • Administer and harden UNIX/Linux servers (installation, configuration, patching, tuning).
  • Manage storage (LVM/VxVM), filesystems (UFS, ext4, XFS), and NFS/Samba.
  • Implement HA/DR solutions (PowerHA, VCS, Pacemaker/Corosync); design RTO/RPO strategies.
  • Automate with shell scripting, Python, Ansible; build standardized runbooks.
  • Troubleshoot performance (CPU/mem/IO), kernel parameters, networking (bonding, VLANs).
  • Integrate with virtualization and cloud (VMware/KVM, AWS/GCP/Azure) where applicable.
  • Ensure compliance: OS hardening (CIS), vulnerability remediation, audit support.
  • Coordinate with DB/middleware/app teams for deployments and changes.
  • Monitor and optimize using tools (Nagios/Zabbix/Prometheus, Splunk/ELK).
  • Lead RCA and continuous improvement for P1/P2 incidents.

Required Skills & Tools

  • AIX, RHEL/CentOS/Alma, Solaris; LPAR/VIO; LVM/VxVM; PowerHA/Pacemaker/VCS
  • Shell scripting (bash/ksh), Python; Ansible/Terraform (nice to have)
  • Networking fundamentals: TCP/IP, DNS, DHCP, routing, firewalls, load balancers
  • Security hardening, SELinux/AppArmor, sudo/polkit, LDAP/AD integration
  • Monitoring/logging (Nagios/Zabbix/Prometheus, Splunk/ELK)
  • ITIL practices: incident, change, problem management


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