Senior Microsoft Windows and VMware vSphere Administrator

Vagan Oil & Gas Limited—an upstream and midstream engineering, pipeline construction, and marine logistics company—is recruiting a Senior Microsoft Windows and VMware vSphere Administrator for its IT Infrastructure and Operations department in Lagos State. This senior technical leadership role oversees the architecture, deployment, virtualization management, disaster recovery, cloud integration (Azure), and security hardening of mission-critical Windows Server and VMware vSphere environments across data centers and oilfield sites.

Key Responsibilities

• Windows & Active Directory Administration: Design, deploy, patch, and maintain Windows Server (2016/2019/2022) environments, Active Directory, DNS, DHCP, Entra ID (Azure AD), Group Policies, and Failover Clustering.

• VMware Virtualization Management: Administer ESXi hosts, vCenter Server, VMware Clusters, HA/DRS, vMotion, Storage vMotion, Distributed Switches, and vSAN infrastructure.

• Hybrid Cloud & Project Delivery: Integrate on-premises data centers with Microsoft Azure, execute VM migrations, support application rollouts across Dev/UAT/Prod environments, and write automation scripts using PowerShell and VMware PowerCLI.

• Security & Disaster Recovery: Enforce CIS security baselines, remediate infrastructure vulnerabilities, manage enterprise backup systems (Commvault, NetApp SAN/NAS), and maintain 99.9%+ system availability.

Requirements & Qualifications

• Academic Background: Bachelor’s Degree in Computer Science, Information Technology, Engineering, or a related technical discipline (Master's degree is an advantage).

• Technical Stack: Deep hands-on proficiency in Microsoft Windows Server, Active Directory, Azure, VMware vSphere suite, PowerShell/PowerCLI automation, Commvault, and NetApp storage platforms.

• Certifications (Preferred): VMware Certified Professional (VCP), Microsoft Certified: Azure Administrator, or MCSE/Windows Server Certifications.