Description and Requirements
Key responsibilities:
- Administer and optimize server performance.
- Perform 24 x 7 stand-by for service contract and maintenance services in rotating basis for critical production systems, ensuring high availability and system health.
- Coordinate with vendors and support team on problem resolution, implementation issues and upgrades.
- Perform root cause analysis and implement corrective actions.
- Deliver technical assistance for application and hardware issues.
- Manage storage provisioning and expansion.
- Ensure timely application of security patches and OS updates.
- Perform user administration tasks.
- Support backup and disaster recovery operations using enterprise backup system.
- Provision and manage LUNs using Pure Storage.
Project Specific Expertise Needed:
- Enterprise OS Management (RHEL/Linux):
- System configuration, maintenance, and troubleshooting
- Performance tuning and optimization
- File system management and storage allocation
- Directory Services & Authentication:
- LDAP and Kerberos configuration and management
- Identity management implementation
- Patch & Update Management:
- Experience with Red Hat Satellite or similar tools
- Planning and execution of system updates
- OS Security & Compliance:
- OS hardening based on CIS benchmarks
- Security patching and compliance auditing
- Monitoring & Management Tools:
- Deployment of system monitoring agents
- Performance monitoring and troubleshooting
- Automation & Scripting:
- Use scripting for automation and task scheduling
- Virtualization & Cloud:
- Experience with hypervisors and virtual machines
- Knowledge of Microsoft Azure, load balancers, firewalls, and OS clustering
- Backup & Disaster Recovery:
- Implementation of OS-level backup solutions
- Disaster recovery planning and testing
- Storage Technologies:
- Familiarity with Pure Storage
- LUN provisioning and management
Requirements:
- Singaporean due to security clearance requirement.
- 5 years of experience in Linux Server administration, implementation & Troubleshooting, esp. REHL.
- RedHatCertifiedSystemAdministrator(RHCSA) is preferred.
- Experienced in Linux clustering & VM level Linux cluster.
- Experience in OS installation, configuration and fine tuning, security hardening, system audit.
- Experience in ITIL process - Incident management, Change management, Configuration management.
- Good experience in automating with Shell scripting and ansible.
- Basic experience in public cloud such as AWS & Azure is preferred.
Soft Skills:
- Strong written and verbal communication skills
- Ability to convey technical concepts to both technical and non-technical audiences
- Innovative and proactive approach to system administration
