We are seeking a skilled Linux/Unix with a minimum of 5 years of experience in supporting and managing enterprise-level operating systems, with a strong emphasis on Linux environments deployed on both physical servers and hypervisors. The successful candidate will collaborate closely with the Network Operations Center (NOC) team, as well as network engineers, database administrators (DBAs), and Wintel engineers, to ensure a stable and resilient operating environment that meets all contractual Service Level Agreement (SLA) 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
