• Wazuh SIEM tool Installation & Configuration• Vmware ESXi Installation & Configurations• Vmware vCenter Installation & Configurations• Active Directory, DNS, DHCP Management• PFSense• Managed server configurations and maintained operating systems for optimal performance.• Conducted regular backups and disaster recovery operations to safeguard critical data.• Monitored system performance and resource usage to ensure efficiency and reliability.• Provided technical support and troubleshooting for end users across the organization.• Collaborated with IT teams to plan and execute system upgrades and migrations.• Configured and managed user accounts, permissions, and access controls.• Monitored logs and alerts for unusual activities and potential breaches.• Managed virtualization platforms to maximize resource utilization and flexibility.

• Lead Incident and Problem Management to ensure swift issue resolution and proactive collaboration with vendors and stakeholders.• Coordinate seamless Business Support System (BSS) and Gateway Mobile Location Center (GMLC) implementations, ensuring rigorous testing and enhanced performance.• Oversee CRM permissions, user accounts, and third-party integrations for secure and efficient user experiences.• Drive CRM version upgrades and system audits, maintaining security, compliance, and operational excellence.• Manage the Internal Business Operations Monitoring application to optimize efficiency and performance.• Support nationwide CRM systems and BSS processes, delivering high-quality solutions and quick issue resolution.• Key contributor to product, service, package, and promotion deliveries, improving customer experiences.• Generate customized and ad hoc reports to aid business analysis and data-driven decision-making.• Work closely with business users to understand project scopes and align them with organizational goals.• Initiate automation of repetitive tasks in CRM and financial operations, reducing Turnaround Time (TAT) and risk.• Analyze and resolve security-related CRM complaints, upholding data integrity and user security.• Maintain strict CRM access controls by adhering to the principle of least privilege, safeguarding system integrity.

• Manage CRM permissions, user accounts, and third-party integrations while enforcing role-based access controls and the principle of least privilege.• Provide 24/7 support to customers, vendors, and third parties, ensuring swift resolution of CRM, billing, provisioning, and charging-related issues.• Oversee the Internal Business Operations Monitoring application (BOMC) and configure alerts, machines, and database queues for optimal system performance.• Facilitate product, service, package, and promotion delivery, coordinating with third-party services and resolving issues with SMS, USSD, and MMS.• Generate ad hoc reports and extract data using SQL to aid in business analysis and decision-making.• Assist business users in evaluating project scopes and aligning them with operational goals.• Automate redundant tasks to reduce Turnaround Time (TAT) and minimize financial risks.• Conduct audits of CRM systems to ensure compliance, security, and optimal performance.• Analyze and resolve system-related complaints, identifying root causes and proposing solutions.• Monitor the online charging system to maintain BOSS node and network availability.• Coordinate with vendors to address and resolve system issues efficiently.• Ensure continuous support for third-party integrations and processes through effective monitoring and troubleshooting.

• Administer Linux systems (RHEL 7/CentOS 7) including storage (LVM, VG), log management, firewall, and SELinux settings.• Manage user and group permissions, including account creation and deletion on Linux.• Handle permissions and ACLs for files/directories.• Install and configure Zabbix NMS, including agent setup for Windows and Linux.• Set up alerts and triggers in Zabbix NMS.• Configure file servers and manage Squid Proxy & Dansguardian for content filtering.• Administer Windows systems (Windows 7, 8, 10, Server 2008/12/16).• Manage Active Directory including user, group, OU management, and password resets.• Configure and manage DNS and DHCP services.• Operate VMware vCenter for VM management tasks like creation, deletion, migration, and resource allocation.• Manage VMware Horizon View Client (VDI).• Implement Veeam Backup solutions.