Top South African data scientists are solving critical challenges in society and making their mark on the global industry. From deliveries to cyber security, advanced analytics is driving change; but it's the leading thinkers behind these solutions that are really impressive. If you've ordered a delivery from South Africa's largest on-demand grocery delivery service, the driver's route was optimised by a "travelling salesman" algorithm that Kimberly Taylor originally developed as a Wits engineering student. She has since built a company and an award-winning app around this innovation which helps logistics companies scale their delivery volume. Multi-stop route optimisation is critical for perishable deliveries and through Taylor's solution, data science is helping on-demand delivery companies in the Quick Service Restaurant and grocery space keep their promise of 30 60 minutes.