Seung Kyu Kook

· Coordinated the testing and validation of mobile services for next-gen smartphones on 5G and LTE networks.

· Led the performance verification of key network features, including Wi-Fi calling, SIM activation, Dynamic IMEIs, and VVM across major carriers such as Verizon, US Cellular, Comcast, and Dish.

· Conducted field testing for 5GNR and LTE connectivity using proprietary diagnostic tools like QXDM and QCAT, analyzing cellular baseband logs to troubleshoot network issues and validate software/app functionality.

· Managed mobile service sample inventory and provided technical support for on-site testing operations, ensuring proper setup and configuration.

· Collaborated with developers and project managers to design and execute test plans for 5G, LTE, and Wi-Fi calling features, ensuring smooth and accurate field-to-lab handoffs.

· Utilized tools such as Jira and PLM for issue tracking, reporting, and documentation of test results.

· Worked closely with shipping carriers to ensure timely and accurate delivery tracking, achieving a 12% improvement in POD accuracy by analyzing delivery logs and resolving technical issues.

· Supported troubleshooting and problem-solving in operational and logistical systems, providing insight and data analysis to ensure smooth operations and meet customer requirements.

· Managed the end-to-end supply chain for product installations and customer satisfaction, ensuring smooth delivery and customer support.

· Coordinated team efforts to identify operational inefficiencies and implement corrective actions to exceed product sales by 15% and maintain high levels of customer retention.