John Demjanuk is a highly driven professional with extensive experience in the automotive, commercial vehicle, industrial/construction, and medical device industries. With an accomplished career at a leading international recruiting firm, Demjanuk founded S1 and subsequently established ResourceONE, a subsidiary of the company. Demjanuk's expertise revolves around building sales, technical and manufacturing teams from scratch or enhancing existing teams to enhance their performance. He boasts a range of specialties, including automotive, autonomous electric vehicles, artificial intelligence (AI), Internet of Things (IoT), heavy truck, robotics, and medical devices, to name a few.

Throughout his career, Demjanuk has represented individual contributors and succeeded at the executive level with integrity that he cites as the key to his success. He stayed charged by balancing his professional and personal life and frequently enjoys family time. Demjanuk pursued his Bachelor of Business Administration degree from Cleveland State University.