Senior Systems Engineer [RHEL]

We're looking for a detail-oriented and analytically-minded Senior Systems Engineer with deep expertise in Red Hat Enterprise Linux (RHEL) to join our organization in Singapore. In this role, you will design, implement, and maintain robust Linux-based infrastructure that supports our enterprise operations. You will work collaboratively with cross-functional teams to ensure system reliability, security, and optimal performance while mentoring junior engineering staff and driving continuous improvement initiatives.
What will you do?
Design, deploy, and manage RHEL-based infrastructure solutions that meet organizational requirements and industry best practices
Perform system administration tasks including user management, access control, patch management, and security hardening
Troubleshoot complex technical issues efficiently and systematically, documenting root causes and implementing preventative solutions
Develop and maintain automation scripts and tools using Bash, Python, or similar languages to improve operational efficiency
Monitor system performance, capacity, and availability; analyze metrics and implement optimization strategies
Collaborate with application teams, database administrators, and network engineers to ensure seamless system integration
Implement and maintain configuration management solutions to ensure consistency across infrastructure environments
Provide technical guidance and mentoring to junior systems engineers and support staff
Document system architectures, configurations, procedures, and runbooks for organizational knowledge management
Stay current with RHEL updates, security patches, and emerging technologies relevant to enterprise Linux systems
The ideal candidate should possess:
Due to government project sensitivity, we will only consider Singapore Citizen
7+ years of hands-on experience administering and supporting Red Hat Enterprise Linux systems in production environments
Strong expertise in Linux system administration, including kernel tuning, package management, and system optimization
Proficiency in scripting languages such as Bash, Python, or Perl for automation and system management
Demonstrated experience with infrastructure architecture and design principles
Advanced troubleshooting and problem-solving capabilities with strong analytical skills
Experience with configuration management tools such as Ansible, Puppet, or Chef
Knowledge of enterprise security practices, including firewall management, SELinux, and access controls
Excellent organizational and documentation skills with attention to detail
**Preferred Skills & Experience:**
Red Hat Certified Engineer (RHCE) or Red Hat Certified System Administrator (RHCSA) certification
Experience with containerization technologies including Docker and Kubernetes
Familiarity with cloud platforms such as AWS, Azure, or OpenStack
Knowledge of virtualization technologies such as KVM or VMware
Experience with monitoring and logging solutions such as Prometheus, ELK Stack, or Splunk
Background in DevOps practices and CI/CD pipeline implementation
Experience with storage solutions and backup/disaster recovery strategies

Skills
Python, Linux, AWS, Azure, Docker, Kubernetes, CI/CD, Ansible, Documentation

Employment type
Full-time

Work arrangement
No