Senior Engineer, Unix/Linux Systems

About the Role

We are seeking an experienced Senior Engineer, Unix/Linux Systems to join a high-performing infrastructure team supporting enterprise-scale environments. This role is responsible for the administration, maintenance, optimization, and support of Linux-based infrastructure across mission-critical systems.

You will work closely with cross-functional technology teams to ensure system availability, security, performance, and compliance while contributing to infrastructure enhancements and operational excellence.

Key Responsibilities

• Install, configure, and maintain Red Hat Enterprise Linux (RHEL), Red Hat OpenShift, Oracle Linux, and related infrastructure components.
• Support system administration activities including user account management, software updates, OS patching, and configuration changes.
• Perform system monitoring, health checks, troubleshooting, and service recovery activities.
• Develop, maintain, and improve Standard Operating Procedures (SOPs) covering patching, backup and recovery, system hardening, and operational processes.
• Participate in infrastructure support, implementation, upgrades, and enhancement projects.
• Collaborate with infrastructure teams including Network, Storage, Security, and Application teams to deliver integrated solutions.
• Execute monthly and ad-hoc operating system patching and maintenance activities.
• Monitor system performance, recommend improvements, and optimize infrastructure resources.
• Produce operational and performance reports to support capacity planning and service management.
• Investigate and resolve infrastructure incidents and problems while providing support to application teams.
• Coordinate with technology vendors and third-party partners for issue resolution and technical support.
• Participate in standby support arrangements, including after-hours and weekend activities when required.
• Provide technical guidance, mentorship, and leadership to junior engineers.

Requirements

• Bachelor's Degree in Information Technology, Computer Science, Engineering, or a related discipline.
• Minimum 5 years of hands-on experience supporting Linux-based infrastructure environments.
• Strong experience with Red Hat Enterprise Linux (RHEL) and enterprise Linux administration.
• Experience supporting Linux patching, hardening, backup and recovery processes.
• Familiarity with Windows Server environments, Microsoft Active Directory, and PowerShell scripting.
• Basic understanding of networking concepts, including routing and switching.
• Experience working within enterprise or large-scale infrastructure environments.
• Strong analytical, troubleshooting, and problem-solving skills.
• Good communication and stakeholder management abilities.
• Red Hat certification (RHCSA/RHCE) will be an advantage.

Why Join Us

• Work on enterprise-scale and mission-critical infrastructure environments.
• Exposure to modern technologies including Red Hat OpenShift and hybrid IT platforms.
• Opportunities to lead projects and mentor junior engineers.
• Collaborative and technology-driven working environment with strong career development opportunities.

How To Apply:

Submit your application by emailing a detailed copy of your updated Resume in MS Word Format to Lin Jin Sen (EA Personnel Reg. No. R25129852, Achieve Career Consultant Pte Ltd EA Licence No. 05C3451)

by clicking the Apply Now or email to [Confidential Information] for a confidential discussion

Current & Expected Salary

Reason(s) for leaving

Notice Period / Availability to commence work

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