Systems Administrator

3 days ago

Dubai, Dubai, United Arab Emirates NX Digital Technology Full time
Job Summary:

We are seeking an experienced Systems Administrator to join our team at NX Digital Technology. The successful candidate will play a critical role in the administration, maintenance, and security of our IT infrastructure.

The ideal candidate will have hands-on experience with both Windows and Linux server environments, including virtualization technologies such as VMware and Hyper-V. They will also be responsible for managing Microsoft Exchange Server environments and providing support for user account management.

Key Responsibilities :

  • Manage, configure, and maintain Windows and Linux servers, including CentOS, Ubuntu, RedHat, and others.
  • Perform daily system monitoring, backups, and server health checks to ensure optimal performance.
  • Troubleshoot and resolve server-related issues, including hardware, OS, and application problems.
  • Administer Active Directory, Group Policy, and other Windows services.
  • Provide support for user account management, including creating, modifying, and deleting user accounts.

Virtualization & Cloud Infrastructure :

  • Administer and manage virtualization platforms, including VMware vSphere and Hyper-V.
  • Deploy, manage, and optimize virtual machines in a highly available and fault-tolerant environment.
  • Work with cloud platforms like AWS, Azure, or GCP, if applicable.

Patch Management :

  • Implement and manage a regular patching process for both Windows and Linux systems.
  • Use patch management tools to deploy operating system and application updates.
  • Ensure all systems comply with internal security policies and external regulatory requirements, such as PCI-DSS and HIPAA.

Email Infrastructure (Exchange Servers) :

  • Administer and maintain Microsoft Exchange Server environments, on-premises or hybrid.
  • Manage email routing, mailboxes, distribution groups, and public folders.
  • Monitor and resolve Exchange-related issues, including connectivity, performance, and mail delivery.
  • Implement backup and recovery processes for Exchange databases.
  • Deploy and manage Docker containers for development, staging, and production environments.
  • Work with container orchestration platforms like Kubernetes to manage large-scale containerized applications.
  • Integrate containerized applications into the CI/CD pipeline and work closely with DevOps teams.

Automation & Scripting :

  • Develop and maintain scripts, including Bash, PowerShell, and Python, to automate routine tasks, including system deployments, configurations, and monitoring.
  • Work with configuration management tools, such as Ansible, Chef, and Puppet, for system automation.

Monitoring & Troubleshooting :

  • Monitor system health and performance using tools like Nagios, Zabbix, Prometheus, or similar monitoring tools.
  • Investigate and resolve system issues and performance bottlenecks.
  • Create alerts and dashboards to monitor server uptime, resource utilization, and application performance.

Requirements :

Professional Experience :

  • 5-7 years of hands-on experience in managing both Windows and Linux server environments.
  • Solid experience with virtualization technologies, including VMware and Hyper-V.
  • Experience managing Microsoft Exchange Server environments.
  • Strong experience with Linux containers, especially with Docker and Kubernetes.
  • Practical experience with patch management tools and processes.
  • Practical experience with Azure Intune management.
  • Experience scripting in Bash, PowerShell, or Python for automation.

Skills :

  • In-depth understanding of system administration on both Windows and Linux, including Windows Server 2016/2019/2022 and various Linux distributions.
  • Familiarity with cloud platforms, including AWS, Azure, and GCP.
  • Strong understanding of Active Directory and Group Policy management.
  • Knowledge of Exchange Server administration, including mail flow, database management, and backup strategies.
  • Experience with containerization technologies, including Docker and Kubernetes.
  • Familiarity with CI/CD processes and container integration.
  • Strong troubleshooting skills and ability to work independently.

Certifications :

  • Microsoft Certified: Windows Server (MCSA or MCSE).
  • Red Hat Certified System Administrator (RHCSA) or similar Linux certification.
  • Docker Certified Associate (DCA) or Kubernetes Administrator (CKA).
  • VMware Certified Professional (VCP) or similar.

Preferred Qualifications :

  • Experience with cloud-native applications and managing systems at scale in cloud environments.
  • Experience with container orchestration tools, such as Kubernetes, OpenShift, or Docker Swarm.
  • Familiarity with automation tools, including Ansible, Terraform, or Puppet.

Working Conditions :

  • Full-time position with occasional on-call or after-hours support as required.
  • Some local travel may be required depending on the nature of the role.

Education :

Bachelor's degree in Computer Science, Information Technology, or a related field, or equivalent practical experience.

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