Senior Unix Systems Engineer

About the role

Fuku is looking for a Senior Unix Systems Engineer to join a mission-critical infrastructure team powering high-availability payment systems in Singapore. The role offers deep technical ownership, exposure to enterprise-scale environments and the chance to build resilient platforms supporting real-time financial transactions.

Key responsibilities

• Administer and maintain Unix and Linux servers across production, disaster recovery and testing environments.
• Implement system upgrades, security hardening, patching and proactive monitoring to keep infrastructure stable and compliant.
• Manage incidents, perform root cause analysis and put in place preventive solutions aligned with service level agreements.
• Execute change, release and deployment activities with minimal disruption to critical payment systems.
• Monitor capacity, optimise performance, support infrastructure projects and keep documentation and operational processes up to date.

Required profile

• Bachelor's degree in IT, Computer Science or a related field, with strong infrastructure fundamentals.
• Minimum 6 years' experience administering Unix, Linux and middleware environments in enterprise or financial services organisations.
• Experience hardening operating systems, patching, tuning performance and supporting high-availability production systems.
• Strong analytical, communication and problem-solving skills, able to work independently in fast-paced environments.

Required skills

• Hands-on scripting and automation
• System monitoring and backup tools
• SAN storage technologies
• Unix and Linux administration