Linux Systems Engineer - RHEL/Solaris, 24x7 Ops

Lenovo; Singapore; On-site; SGD 45,000 - 75,000; Full time

Job summary

Lenovo is seeking a System Administrator to manage server installations, optimize performance, and ensure 24x7 reliability across Linux/UNIX environments in Singapore.

The role requires hands-on experience with RHEL 7/8/9 and Solaris 10/11, CIS security hardening, and familiarity with Azure, load balancers, and firewalls. Strong communication and accurate documentation are essential for supporting critical infrastructure.

Qualifications

• Experience in Linux/UNIX server administration with focus on reliability and performance.
• Hands-on experience with RHEL 7/8/9 in enterprise environments.
• Experience implementing CIS security hardening on servers.
• Provide 24x7 support for production systems and perform root cause analysis.
• Strong written and verbal communication for technical and non-technical audiences.
• Knowledge of Azure, load balancers, and firewall configurations.
• Administration across Solaris 10/11 environments.

Responsibilities

• Install, administer and optimize Linux/UNIX servers for production.
• Provide 24x7 support and monitor system health and uptime.
• Perform root cause analysis and implement corrective actions.
• Harden servers according to CIS guidelines and document changes.
• Coordinate with teams and communicate technical issues clearly.

Skills

Linux/UNIX administration

RHEL 7/8/9

Security hardening (CIS)

Production uptime / 24x7 support

Root cause analysis

Communication skills

Server performance optimization

Solaris administration

Tools

Azure

Load Balancers

Firewalls

Job description

Lenovo is seeking a System Administrator to manage server installations, optimize performance, and ensure 24x7 reliability across Linux/UNIX environments in Singapore.

The role requires hands-on experience with RHEL 7/8/9 and Solaris 10/11, CIS security hardening, and familiarity with Azure, load balancers, and firewalls. Strong communication and accurate documentation are essential for supporting critical infrastructure.