Wiceprezes PTPiREE, Prezes Zarządu Stoen Operator
Robert Stelmaszczyk od marca 2007 roku pełni funkcję Prezesa Zarządu Stoen Operator Sp. z o.o. (do grudnia 2021 roku innogy Stoen Operator Sp. z o.o.), zaś od 15 maja 2024 r. jest Wiceprezesem Polskiego Towarzystwa Przesyłu i Rozdziału Energii Elektrycznej – PTPiREE.
Wcześniej pracował jako Prezes Zarządu Polish Energy Partners S.A. (teraz część firmy Polenergia S.A.), niezależnego producenta energii.
In the years 1998-2003, he was the Director of the Energy Industry and a Proxy of Siemens in Poland, responsible for the entire offer of equipment and services for the generation, transmission and distribution of energy. Previously, he held the position of Director of the utilities department of Landis & Gyr Sp. z o. o., which supplied energy measurement systems and was taken over by Siemens.
From 1991 to 1997 he worked as Sales and Development Director for Central and Eastern Europe at Westinghouse Electric Corporation, where he was responsible for automation systems.
He graduated from the Faculty of Electronics of the Warsaw University of Technology.