o Managed Microsoft Active Directory, Windows Server, and mail servers, overseeing user accounts, Group Policies, permissions, maintenance, backups, and security.o Supported Microsoft 365 administration and Azure Entra, managing user accounts, licenses, MFA, Exchange Online, Teams, OneDrive, and conditional access policies.o Provided technical support for AV needs in both in-person and hybrid events, including AV equipment setup, virtual platform management, and remote participant support.o Troubleshot and resolved network and software issues by diagnosing connectivity problems, network performance issues, software glitches, and OS errors.o Configured network equipment such as routers, switches (including Cisco devices), firewalls, VLANs, routing protocols, VPNs, access control systems, and security cameras.o Implemented wired networks with routing, VPC, subnetting, and firewall policies tailored for hotel networks.o Managed server and workstation patching, overseeing desktop hardware setup, OS configuration, and software installation.o Provided technical support to conference operators, managed in-house IT systems (digital concierge, Wi-Fi, streaming), and supported hotel systems (Opera, Micros, Wind Cave).o Implemented an IT ticketing system to prioritize and manage support requests efficiently.o Rolled out critical updates to protect desktops and servers against new viruses and exploits.o Maintained and updated documentation to ensure accuracy and facilitate operations.o Collaborated with external vendors to address technical issues, coordinate procurement, and manage SLAs.

o Monitored network performance in LED production lines and quality control rooms, ensuring optimal activity.o Assisted with software and hardware issues in LED TV production lines and workstations.o Provided technical support and training to dealers and retailers on the company software CCMS system, maintaining updated information and resolving issues promptly.o Conducted technical QA verification and approval for home appliance (HA) and home electronic (HE) products according to industry guidelines.o Organized team meetings and trained staff on new products and technical specifications.o Supported technical issues for dealer and retail branches, ensuring quick and effective resolutions.o Assisted the R&D lab in improving new products and implementing technical enhancements.o Operated and monitored Pre-Delivery Inspection (PDI) and Return Merchandise Authorization (RMA) for HA and HE products.o Managed customer service inquiries and stock ordering for technical products.

o Cannibalization of Handsets: Conducted disassembly and parts harvesting from obsolete handsets to optimize resource utilization.o Software Flashing: Performed software updates and repairs on mobile devices to ensure functionality and compliance with the latest standards.o Customer Service and ERP Software Management: Handled and maintained customer service and ERP software, improving operational efficiency and customer support processes.o Quality Control: Executed quality control measures in accordance with LG, Intex, and CG guidelines to maintain high standards of product quality.o IMEI Rewriting: Rewrote IMEI numbers for mobile devices, ensuring proper device tracking and compliance with regulatory requirements.o Circuit Design Support: Assisted in circuit design and development, contributing to the enhancement of mobile hardware functionality.o Customer Service Management: Managed customer service operations, providing technical support and resolving customer issues efficiently.o Mobile Hardware Maintenance: Conducted