Senior System Administrator

The Senior System Administrator is responsible for managing, maintaining, and optimizing hybrid cloud environments and on-premises virtualization infrastructure. This role involves deploying and configuring solutions on Microsoft Azure, Oracle Cloud Infrastructure (OCI), and VMware, ensuring secure, scalable, and reliable IT operations.

Location: Dubai, United Arab Emirates
Work Conditions: On-site, Full-time

Key Responsibilities:

• Cloud Administration (Azure & OCI):

  • Deploy, configure, and maintain resources in Azure and OCI, including virtual machines, storage, networking, and databases.
  • Implement and manage hybrid cloud architectures integrating on-premises VMware environments with Azure and OCI.
  • Optimize cloud performance, scalability, and cost-efficiency across platforms.
  • Manage identity and access controls (IAM) and implement cloud security best practices.

• VMware Administration:

  • Install, configure, and manage VMware vSphere, ESXi hosts, and vCenter environments.
  • Monitor and maintain VMware infrastructure to ensure high availability, performance, and reliability.
  • Implement and manage virtualized networking and storage (e.g., NSX, vSAN).
  • Perform capacity planning and resource optimization for virtualized environments.

• Networking & Connectivity:

  • Configure and manage cloud networking solutions (e.g., Azure Virtual Networks, OCI VCN, ExpressRoute, FastConnect).
  • Design and maintain secure and efficient network connectivity between on-premises and cloud environments.
  • Troubleshoot network and connectivity issues across VMware, Azure, and OCI platforms.

• Backup, Recovery, & Disaster Recovery:

  • Design and implement backup and disaster recovery solutions for cloud workloads.
  • Test and document disaster recovery procedures for hybrid environments.
  • Ensure compliance with RPO/RTO requirements and organizational policies.

• Monitoring & Troubleshooting:

  • Use monitoring tools (e.g., Azure Monitor, OCI Monitoring, VMware vRealize Operations) to track system health and performance.
  • Troubleshoot issues across cloud and virtualization platforms, ensuring minimal downtime.
  • Act as the escalation point for advanced technical issues.

• Documentation & Collaboration:

  • Document configurations, processes, and best practices for cloud and VMware environments.
  • Collaborate with application teams to design and deploy infrastructure solutions.
  • Provide training and guidance to junior administrators and IT staff.

Required Qualifications:

• Bachelor’s degree in Computer Science, Information Technology, or related field (or equivalent experience).
• 5+ years of experience managing Azure, OCI, and VMware environments.
• Proficiency in VMware technologies (vSphere, vCenter, ESXi, NSX, vSAN).
• Expertise in Azure and OCI cloud services, including compute, storage, and networking.
• Strong understanding of virtualization, hybrid cloud architectures, and networking principles.
• Proficiency in scripting languages (e.g., PowerShell, Bash, Python).

Preferred Qualifications:

• Relevant certifications such as:
  • Azure: Microsoft Certified: Azure Administrator Associate, Azure Solutions Architect Expert.
  • OCI: Oracle Cloud Infrastructure Architect Associate/Professional.
  • VMware: VMware Certified Professional (VCP) in Data Center Virtualization (VCP-DCV).
• Experience with hybrid cloud tools (e.g., Azure Arc, VMware HCX).
• Familiarity with containerization (Docker, Kubernetes) and orchestration platforms.
• Knowledge of ITIL framework and DevOps practices.