Nurudeen Adisa

Senior Systems Administrator

SiNet Technologies • Full-time

Mar 2025 - Present • 1 yr 2 mos

Provide Tier 3 technical support to end-users both remotely and on-site, ensuring timely resolution of complex IT issues. Manage identity and access controls across the organization, including hybrid integration between Azure Active Directory and on-premises Active Directory Domain Services (AD DS). Deploy, configure, and maintain Windows Server infrastructure, ensuring system reliability, performance, and security. Administer Azure and Microsoft 365 environments, including user lifecycle management, policy implementation, and service optimization. Manage application deployment and infrastructure provisioning within the Azure environment to support business operations and scalability. Configure and enforce device compliance policies and patch management strategies using Microsoft Intune. Management of VMware vSphere 8.0 environment with an estate of 20 ESXi hosts and approximately 500 Virtual Machines. Set up and maintain Veeam Backup solutions for data protection, business continuity, and disaster recovery. Oversee CCTV and access control systems to support corporate security infrastructure. Coordinate and manage relationships with IT vendors to ensure timely delivery, support, and service excellence. Lead and supervise the end-user support and network teams, ensuring high service quality and alignment with IT best practices.