Rangganis -

Rangganis is a skilled Battery Laboratory Technician at Qualis Indonesia since March 2023, where responsibilities include conducting various laboratory tasks. Previously, Rangganis served as a Product Engineer at PT SBB OPPO Indonesia from June 2019 to March 2023, applying engineering expertise to product development and quality assurance. Rangganis holds a degree from The University of Riau, completed in 2018.