Collaborated closely with Mobile Network Operator (MNO) customers to design, develop, and qualify both SIM and eSIM products, ensuring solutions met technical and business requirements.Managed the full product life cycle, from presales support and requirements gathering to development, qualification, certification, and post-sales support.Acted as the primary technical liaison, building and maintaining strong relationships with customers and partners at all organizational levels to align solutions with their strategic objectives.Coordinated efforts across cross-functional teams—including Sales, R&D, Product Integration, Test Engineering, Order Management, and Production— to ensure timely and seamless product delivery.

Developed comprehensive test solutions for conformance testing of mobile devices in alignment with 3GPP standards.Served as the primary point of contact for customers, gathering testing requirements and collaborating with cross-functional teams to design and implement tailored test solutions. Spearheaded the automation of testing processes, including test case design, development, execution, and results reporting, significantly enhancing efficiency and accuracy.