As a Network Infrastructure Engineer for Mines and Smelter area▪ Network infrastructure Installation and troubleshooting Synology, VMware ESXi, Switch, (Ruijie, UniFi), Anti-virus, firewall FORTIGATE, Windows Server, Windows 7, 10, 11▪ Active Directory setup Server and Client activation▪ Synology User Policy configuration▪ Installation repeater and radio communication (Icom, Motorola) HT/RIG VHF/UHF Analog and Digital Trunking System▪ Installation and maintenance Backbone Radio Link PTP/PTMP (Cambium, Ubiquiti)▪ Installation Fiber Optic Network project for Mines and Smelter▪ Perform daily and periodic preventive maintenance as well as analysis and troubleshooting of IT devices▪ Assembly and installation FMS (Fleet Management System)▪ Supervise IT team to support all IT issue▪ Project management coordinating with vendors

As a Technical Support Engineer for Smelter RKEF & HPAL Office area.▪ Installation and troubleshooting Mikrotik, Router, Switch (Cisco, Huawei, TP-Link, Ruijie), Synology, VMware ESXi, Data Center, VOIP, CCTV, VSAT, Fingerprint, Anti-virus, firewall SOPHOS▪ Installation repeater and radio communication (Icom, Motorola) HT/RIG, VHF Analog and Digital▪ Installation and maintenance Backbone Radio Link PTP/PTMP with Ubiquiti network device▪ Installation Fiber Optic Network project for Smelter▪ Design and installation of a residential wireless project with more than 3072 active users▪ Perform daily and periodic preventive maintenance as well as analysis and troubleshooting of IT devices▪ Asseting the network support devices using GLPI▪ Provide technical support to end-user related any problems hardware-software IT device

Handling all duties and responsibilities of the IT Division throughout the Mines area (Office & Underground) which includes installation, maintenance, repair and troubleshooting IT equipment such as:▪ Responsible for implementing projects IT equipment according to targets (new projects, additions, changes)▪ Perform daily and periodic preventive maintenance as well as analysis and troubleshooting of IT devices▪ Installation and troubleshooting computer networks (hardware-software, network system, server, client, backup data, email, outlook, ERP, anti-virus, firewall and security system)▪ Installation and troubleshooting router, switch, access point, PTP/PTMP network, ubiquiti network, Wi-Fi, radio RIG/HT, repeater Telkomsel, VSAT, PABX, CCTV, fingerprint▪ Installation and troubleshooting Mikrotik (Security, filter, bandwidth management)▪ Monitoring and maintain the computer system, network and application of all department office activities and hauling activities▪ Diagnose hardware-software problems and provide analysis and solutions▪ Support the implementation of new solutions or application and provide training to user about new features program ERP and android▪ Provide technical support to end-user related any problems hardware-software IT device▪ Coordination with third parties or other internal IT resources whenever necessary to solve technical, application or network issues▪ Setup device for meeting / video conference (Projector, Zoom / Teams App, Yealink)▪ Determine IT equipment specifications and create IT equipment asset reports▪ Manage the IT Department daily work schedule and document work report

Responsibilities installation, maintenance, repair and troubleshooting IT equipment throughout the mines area (Office & Underground which includes:- Installation and troubleshooting computer networks- Installation and troubleshooting Access point, P2P/P2MP Wireless, Ubiquiti Network, CCTV, VSAT, radio RIG/HT, PABX Phone- Installation and troubleshooting Mikrotik- Analyzing and repairing internet networks- Monitoring the stability of the internet network to support the smooth running of all department office activities and hauling activities- Ensures all computers are connected to network and all applications are installed and Running correctly- Helping users to problem solving hardware-software computer (PC, Laptop, Printer, Scanner)- Coordination with the head office regarding network and application issues- Make daily and monthly work reports