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Linux System Administrator

3D Diagnostix
Maadi, Cairo
Posted 4 years ago
47Applicants for1 open position
  • 26Viewed
  • 1In Consideration
  • 5Not Selected
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Job Details

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Job Description

Position Summary:

  • System Administrator's objective is to maintain, upgrade and manage our software, hardware, and networks.
  • His goal will be to ensure that our technology infrastructure runs smoothly and efficiently.
  • He will be held accountable for network and server uptime.
  • The IT System Administrator has to design, organize, modify and support the organization’s computer systems.

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
  • Handle roles, groups, and permissions using amazon IAM
  • Configure and fine-tune AWS infrastructure systems
  • Maintain, troubleshoot, and tune Ubuntu servers
  • Establish metrics and carefully monitor the utilization of AWS resources
  • Manage DNS records
  • Implement a backup policy, perform backups, and verify backups of internal and external data, aim for zero data loss
  • Maintain 99.9 uptime of internet connections
  • Create a disaster recovery plan, and update regularly
  • Respond to and resolve help desk requests
  • Display key KPIs (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 fix time
  • Keep a log of changes, and adhere to CM (Configuration Management) best practice

Job Requirements

Skills:

  • Advanced Linux (Ubuntu) system administration
  • Advanced Bash shell scripting
  • Basic Understanding of Amazon AWS administration (EC2, IAM, RDS, S3)
  • MySQL basic administration (Setup/backup/restore/Logs)
  • Basic VMWare (Esxi) administration
  • Network administration

Certificates:

Must have (the below or equivalent):

  • RHCE - Red Hat Certified System Engineer.

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