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:
1. Enterprise OS Management (RHEL/Linux):
- System configuration, maintenance, and troubleshooting
- Performance tuning and optimization
- File system management and storage allocation
2. Directory Services & Authentication:
- LDAP and Kerberos configuration and management
- Identity management implementation
3. Patch & Update Management:
- Experience with Red Hat Satellite or similar tools
- Planning and execution of system updates
4. OS Security & Compliance:
- OS hardening based on CIS benchmarks
- Security patching and compliance auditing
5. Monitoring & Management Tools:
- Deployment of system monitoring agents
- Performance monitoring and troubleshooting
6. Automation & Scripting:
- Use scripting for automation and task scheduling
7. Virtualization & Cloud:
- Experience with hypervisors and virtual machines
- Knowledge of Microsoft Azure, load balancers, firewalls, and OS clustering
8. Backup & Disaster Recovery:
- Implementation of OS-level backup solutions
- Disaster recovery planning and testing
9. Storage Technologies:
- Familiarity with Pure Storage
- LUN provisioning and management
Requirements:
- Minimum 5 years of experience in Linux Server administration, implementation & Troubleshooting, esp. REHL.
- Red Hat Certified System Administrator (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.
