Senior System Administrator
Al Barakah Holding
Total years of experience :22 years, 0 Months
• Managing multiple Microsoft Azure Tenants.
• Managing multiple Microsoft Office365 tenants (Hybrid & Fully Cloud).
• Managing and maintaining VMware vSphere 6.5/ vXRail HCI 7.0 infrastructure and virtual machines.
• Managing HA cluster (on premise and geo cluster) primary/secondary failover for redundancy and scalability.
• Managing and maintaining more than 100 plus servers (physical, virtual, and cloud
Environments) / 800-plus users across multiple sites.
• Experience in managing Microsoft Servers like Azure Ad Connect server, Azure Active Directory, RADIUS, NPS, SFTP, AD, DHCP, DNS, MS LAP, File Server, Exchange Servers, Hyper-V, WSUS, etc.
• Server upgrades, patch management, GPO, Vulnerability management, Daily server health check, Certificate renewals, AD users, and group management.
• Troubleshoot issues concerning Logon, Data recovery, Emails, OneDrive, and multi-factor authentication (MFA) on frequent basis.
• Experience in managing different types of storage like SAN, NAS, Cloud Storage.
• Managing and Maintaining Endpoint Security like Trend Micro, Crowd Strike and Mimecast Email security gateway.
• Constant monitoring and policy updating of Falcon Crowd Strike (EDR) and Mimecast Email Security Gateway.
• Installed, configured, and managing Veeam backup and replication for physical, virtual, and M365 servers (On-premises and cloud).
• Implemented and managed MDM & MAM through Intune which includes forcing policies and patch management.
• Implemented Keeper connection manager (PAM) for secure instant access to RDP, SSH, Storage, VMware infrastructure, endpoint etc. through web browser with Active Directory, SSO and LDAP integration.
• Maintaining all licensing requirements and renewals along with internal and external SLA targets are met and appropriate qualitative standards achieved.
• Working parallel with the SOC Team/ Network Team to fulfill security and vulnerability issues related to Infrastructure, data theft and breaches.
• Analyzing and identifying SPOF (Single point of failure) on server, application and datacenter network.
• Assist IT support team with M365/SharePoint/Intune/Teams/ ZOHO administration console, Windows and Mac Setup, Upgrade, Reset, Device Enrolment, and Management.
• Extensive experience on all Mac products (configuration and setup).
• Documentation of project progress and reporting on any noncompliance including final project results and project reports for company’s management team.
• Management and administration of IT infrastructure (Nutanix virtualized and physical servers with multi OS architecture).
• Perform daily system monitoring, verifying the integrity and availability of all hardware, server resources, systems and key processes, reviewing system and application logs, and verifying completion of scheduled jobs such as backups.
• Managing Windows servers (DC, ADS, DNS, DHCP, GP etc.).
• Maintained design/architecture and deployment of Office 365 suite of products such as (Azure AD Connect, Directory Sync, ADFS, Exchange Online, Skype/Teams for business online, SharePoint online and One-Drive for business).
• Perform daily backup operations, ensuring all required file systems and system data are successfully backed up to the appropriate media.
• Monitoring, maintenance and configuration of network devices including routers, switches and firewalls (CISCO/HP/SONICWALL/BARACUDA).
• Management and monitoring of VMWare vSphere 6.5 and VDI’s, performing tasks such as installation, configuration and maintenance of Virtualized infrastructure.
• Creating and maintaining VDI’s and VM desktop linked clones.
• Daily monitoring and maintenance of Mitel Call Manager and IP telephony services.
• Extensive experience with SAN/NAS and other network storage technologies and systems, investigating various Issues like Mirror view, Host Integration, drive failures, Power supply faults, Battery issues etc.
• Assists in the planning, design, documentation, and implementation of various systems to include desktop PCs, servers, network equipment, and software applications.
• Manage end user accounts, permissions, access rights, and storage allocations in accordance with best-practices.
• Practice server asset management, including maintenance of server component inventory and related documentation and technical specifications information.
• Extensive experience with Microsoft Windows Server and services such as MS Exchange, MS Certificate Services, WSUS, and Active Directory.
• Management and support of 30 seater call center on Mitel UC (monitoring system performance, call quality assurance, process improvement etc.).
• Perform on-site and remote technical support for Network, Systems and PoS/Queue management system.
• Providing support and assistance to L2 engineers, and telecommunication systems staff in the delivery of end user support and systems maintenance including VOIP network, bio-metric systems, CCTV’s etc.
• Perform regular security monitoring to identify any possible intrusions.
• Prepared and maintaining all network / system diagrams and documentation for future references and audits.
• Administration and maintenance of IT infrastructure (Virtualized 700 zero-clients) based on the SUNRay Cluster platform. Authentication was integrated into LDAP and users are verified via Smart Card with hot-desking.
• Virtual desktop infrastructure integrating multi OS architecture (OSX, Linux, Oracle, Windows server 2008 and Ubuntu Server OS).
• Configuration, performance optimization, scaling, backing up and monitoring of (VDI) Virtual Infrastructure in a large, clustered, multi-server and mission critical environment.
• Conducting and assisting tasks including system and security monitoring, verifying the integrity and availability of all hardware, server resources & services.
• Primary responsibility includes (L3) third-level of technical and operational support and assisting L2 engineers in managing/maintaining IT infrastructure for incident reporting and root cause analysis.
• Parallels, VMware and Virtual box (open source) were used for the guest OS for implementing the VDI and the cloud.
• Responsible for design and deployment of VM’s and containers on the private cloud for company co-locations and subcontractors.
• Designed and implemented backup and geo-replication of local VM’s, Cloud VM’s and Containers.
• Familiar with cloud design technologies (Iaas, SaaS & PaaS).
• Experience with backups and disaster recovery (DR) technologies specifically in regards to virtual environments.
• Responsible for capacity planning, including allocating storage, providing hardware and software redundancy, and planning future expansion requirements.
• Providing support and assistance to L2 engineers, and telecommunication systems staff in the delivery of end user support and systems maintenance including VOIP network, bio-metric systems, CCTV’s etc.
• Responsible for Datacenter operations responsibilities like SAN, NAS, Fiber, Network and Server upgrades, power calculations, UPS, temperature control systems, rack and cable installations etc.
• Preparing pre and post installation network diagrams, flow charts, system flows, IP matrix and all other technical documentation.
• Preparing and producing audit checklist and direct group of technical team for an audit of our virtual environment.
• Ensuring internal and external SLA targets are met and appropriate qualitative standards achieved e.g., Compound network (250 villas), two sister concern companies (200+ clients with servers), MFC vendors, Printer vendors and ISP’s.
• Developing and executing maintenance schedule for network and server system equipment (Periodic and annual).
• Documentation of project progress and reporting on any non compliance including final project results and project reports for company’s management team.
• IT Project In-charge for site projects like SAUDI ARAMCO, SABIC GROUP, RABIGH, YANBU REFINERY & PERTROCHEMICALS etc.
• Planning, development and installation of network systems.
• Coordinated and recommended all network procurement needs. Performs the analysis of network needs and contribute to the design of network architecture, integration and installation.
• Made recommendations on applications and system hardware specifications.
• Prepared and maintained the documentation of network configuration (IP Addresses, Server Information, Licensing, configuration files etc.)
• Remotely administered the Network through VPN Connectivity.
• Troubleshooting the network (200+ network of Desktops and laptops), internet and email problems, resolved the issues regarding Windows Operating System, Desktop and Network Printers, Scanners and copiers either directly or via telephone.
• Troubleshooting with windows 98 and XP Operating System, HP Desktop and Network Printers issues and TCP/IP Connectivity problems on daily basis.
• Monitored and managed Windows 2003 Server with Cisco routers, HP and D-link Switches.
• Maintaining the User Accounts (Windows 2003 and Microsoft Exchange Server).
• Built, configured and performed hardware and software upgrades for desktops, laptops and Servers.
• Installed and configured the IOS in router, implemented security through Access-lists, applying NAT and troubleshooting various protocols on router.
• Provided support in upgrading, configuring and resolving network equipments like Servers, Hubs, Switches and routers.
• Assisted operators with application problems, such as storing, retrieving, transmitting and printing.
• Provided support in design and expansion of existing network and making assignments in troubleshooting for network systems and project implementation.
• Took technical feedback from the complete organization to analyze and troubleshoot the network health and performance.
• Monitored and managed 300+ desktops and laptops having a Windows 2000 Server environment with Cisco 2500, 3000, 4000 series routers, Cisco and D-link Switches.
• Provided technical support to one of the largest companies in the United States that sells computer’s online and provides online support to their customer’s.
• Handled online technical queries of client’s from United States on Hardware and Software related issues and troubleshooting their issues through live web chats, phone and email.
• Resolved technical queries related to OS, Microsoft applications, Drivers and all attached computer hardware.
• Generating daily reports for smooth functioning of the shift and providing training to the new recruits.
• Received extensive technical and customer oriented training from American trainers on regular basis for the support and escalation of customer issues.
Masters of Technology
