Senior Linux Systems Engineer: Automation, Monitoring & Security

AVENSYS CONSULTING PTE. LTD.; Singapore; On-site; SGD 78,000 - 112,000; Full time

Benefits offered by this job

Attractive benefits

Career progression

Collaborative environment

Job summary

Avensys Consulting Pte. Ltd. in Singapore is seeking an experienced Unix/Linux System Engineer to manage and enhance enterprise Unix/Linux infrastructure.

You will perform system administration, scripting, patching, and security, with hands-on work on RHEL/CentOS/Ubuntu, monitoring, and backups. 3–5 years of experience and a CS/IT degree are required; experience with Nagios/Zabbix and Docker/Kubernetes is a plus. This role offers strong career progression and benefits.

Qualifications

• 3–5 years of Unix/Linux system administration experience.
• Strong experience with RHEL, CentOS, and/or Ubuntu.
• Proficiency in Bash and/or Korn shell scripting.
• Good knowledge of file systems, LVM, and RAID.
• Experience with monitoring tools such as Nagios or Zabbix.
• Good understanding of TCP/IP, DNS, NFS, and SSH.
• Experience with patching and vulnerability management.
• Bachelor's degree in Computer Science / IT or related field.

Responsibilities

• Administer and maintain Unix/Linux servers (RHEL/CentOS/Ubuntu).
• Perform system monitoring, tuning, Troubleshooting, and optimization.
• Manage patching, updates, vulnerability remediation, and security.
• Develop and maintain Bash/Korn shell scripts to automate tasks.
• Manage file systems, LVM, RAID, backups, and configurations.
• Troubleshoot infrastructure issues and resolve within SLA.
• Support networking services: TCP/IP, DNS, NFS, SSH.
• Maintain technical documentation and runbooks.
• Support disaster recovery planning and exercises.
• Collaborate with teams on technical initiatives.
• Mentor junior team members and share knowledge.
• Identify opportunities for process improvement.

Skills

Unix/Linux system administration

Scripting (Bash/Korn)

Troubleshooting

Networking fundamentals

Automation mindset

Education

Bachelor's degree in Computer Science / IT or related field

Tools

Nagios

Zabbix

RHEL/CentOS/Ubuntu

Bash scripting

Git

Docker

Kubernetes

Job description

Avensys Consulting Pte. Ltd. in Singapore is seeking an experienced Unix/Linux System Engineer to manage and enhance enterprise Unix/Linux infrastructure.

You will perform system administration, scripting, patching, and security, with hands-on work on RHEL/CentOS/Ubuntu, monitoring, and backups. 3–5 years of experience and a CS/IT degree are required; experience with Nagios/Zabbix and Docker/Kubernetes is a plus. This role offers strong career progression and benefits.