Björn Rettig is vice president, World Ready Team at PayPal. He is also an instructor at the Harvard University Extension school, a husband, a father of two young ladies (both excited about STEM) and a proud geek. After 26 years at Microsoft in different engineering roles, he left the Pacific Northwest and joined PayPal to go back to his roots of localization and globalization. Björn is the inventor of the multilingual user interface, the language interface packs and holds five other software patents.