وظيفة Senior Linux System Admin (+3 years experience)

Roles & Responsibilities:

• Ensure the security and efficiency of IT infrastructure
• Commit for 99.9 uptime of internal and external servers
• Monitor and tune the performance of Amazon EC2 (ubuntu), RDS (MySQL) servers
• Monitor AWS services using Amazon Cloud Watch
• Maintain, troubleshoot, and tune Ubuntu servers
• Establish metrics and carefully monitor the utilization of AWS resources
• Follow the -backup policy, perform backups, and verify backups of internal and external data, aiming for zero data loss.
• Maintain 99.9 uptime of internet connections and maintain a disaster recovery plan
• Respond to and resolve help desk requests
• Display key KPls (Key Performance Indicators) on a dashboard
• Configure alerts and notifications for key metrics
• Use the ticketing system for all requests, respond in time as per SLAS
• Install and configure software, networking equipment, and hardware
• Administrate infrastructure, including firewalls, databases, malware protection software --Review application and server logs
• Manage network servers including VMware and Amazon resources
• Maintain high available internal VMware servers
• Set up accounts and permissions
• Monitor performance and maintain systems according to requirements
• Monitor the system daily and respond immediately to security or usability concerns Troubleshoot issues and outages
• Ensure security through access controls, backups, and firewalls
• Upgrade systems with new releases and models
• Develop expertise to train staff on system admin basic tasks (Linux commands, networking troubleshooting commands)
• Build an internal wiki with technical documentation, manuals, and IT policies
• Develop and maintain SLAS (Service level agreements)
• Meet or exceed agreed-upon SLAs, in terms of response and fixed time
• Keep a log of changes, and adhere to CM (Configuration Management) best practices. -24/7 on-call readiness for emergencies and escalated ticket response.