The posting
Key Responsibilities
• Linux System Administration
• Install, configure, harden, patch, and maintain Linux systems (primarily RHEL-based distributions)
• Perform OS tuning, performance optimization, and capacity planning
• Ensure system security compliance (CIS benchmarks, patching, vulnerability remediation)
• Infrastructure Operations
• Manage Linux systems across development, testing, and production environments
• Provide Level 3 support for Linux-related incidents and issues
• Support high availability and disaster recovery configurations
• Automation & DevOps
• Develop and maintain automation using Ansible, Bash, and Python
• Automate provisioning, patching, and configuration management workflows
• Continuously improve system efficiency through infrastructure-as-code practices
• System Monitoring & Reliability
• Monitor system health, logs, and performance using enterprise monitoring tools
• Troubleshoot system bottlenecks, kernel issues, and application dependencies
• Ensure high system availability and uptime
• Hardware & Platform Support
• Support physical server infrastructure including installation and maintenance
• Coordinate with vendors and internal teams for hardware-related issues
• Documentation & Compliance
• Maintain documentation of system configurations, procedures, and runbooks
• Ensure compliance with internal policies, security standards, and audit requirements
Requirement:
Education & Experience
• Degree in Computer Science, Information Technology, or related field
• Minimum 5+ years of experience in Linux system administration in enterprise environments
• Core Technical Skills
• Strong hands-on expertise in RHEL / Linux (LVM, networking, kernel tuning, system internals)
• Experience with configuration management tools (Ansible preferred)
• Proficiency in shell scripting (Bash) and familiarity with Python
• Experience working in large-scale, production environments
• Additional Skills (Preferred)
• Familiarity with containers (Docker/Kubernetes) is a plus
• Understanding of security hardening and compliance standards
• Red Hat certification (RHCSA/RHCE) is highly desirable
• ITIL certification is an advantage
• Network for Electronic Transfers (Singapore) Pte Ltd.



