* Provide on-site technical support for client hardware, software, POS systems, and networking issues.* Unbox, install, mount, configure, and set up POS machines and related equipment at customer locations.* Install and configure Windows OS and troubleshoot basic Windows/Linux operating system issues.* Install, configure, and troubleshoot printers, barcode scanners, receipt printers, cash drawers, and other POS peripherals.* Diagnose and resolve hardware, software, network, and connectivity issues.* Troubleshoot physical connectivity issues, faulty hardware components, and local power supply problems.* Perform basic network troubleshooting, including LAN, Wi-Fi, IP configuration, and connectivity issues.* Lay, crimp, terminate, and patch Ethernet/network cables as required.* Conduct testing after installation or repair to ensure all POS equipment and peripherals are working properly.* Respond to customer service requests and resolve technical issues promptly.* Coordinate with internal technical and support teams to resolve complex issues when required.