Regional Management Team

Charlotte Hambly-Nuss - Managing Director OTI PetroSmart

Charlotte Hambly-Nuss

Managing Director OTI PetroSmart

Charlotte is a qualified attorney and notary public who left private practice in 1996 to pursue a career in the smart card industry. Charlotte was initially appointed as the Corporate Affairs Manager/Legal Advisor to OTI’s erstwhile distributor in Africa before being appointed as CEO.
After listing on the stock exchange, OTI decided to establish a subsidiary in South Africa. Charlotte was appointed as the Managing Director of OTI Africa in 1999. Charlotte was appointed as the VP Global Business Development for Petroleum Payment Solutions for the OTI Group in mid-2010 and as VP Global Petroleum Products and Payment Solutions in mid-2011.


Agnieszka Swiatly

Agnieszka Swiatly

Managing Director OTI Europa

Agnieszka has experience-driven expertise in global developing Fintech markets and corporate business strategy within Central/Eastern Europe.
Before joining OTI Europa, Agnieszka was Head of Business Development & Board Advisor at MCX Telecom and Head of Sales CEE Region at NCR Corporation (the owner of Retalix).
She holds an MA, in Business and Administration Postgraduate, Finance, and Management from The University of Warsaw.


Bill Gostkowski

Vice President Business Development – OTI America

Bill brings to OTI over two decades of success in financial services and digital security. Previously, Bill held Technical, Marketing, and Sales Management positions for companies such as Gemalto and General Electric in addition to serving in The U. S. Navy.  Bill holds a technical degree in electronics and executive education at both The Harvard Business School and The McCombs School of Business.