Management Team

Carson Spencer

Carson Spencer Bio PhotoCarson joined STW Technic as President at the beginning of 2020. Carson has more than 20 years of experience in engineering and technology leadership and development roles. He is responsible for STW’s business in North America. Prior to STW, Carson worked at Bridgestone Americas as Director of Technology Products and Operations, U.S. and Canada. In this role, Carson developed next generation mobility solutions for Bridgestone’s commercial tire customers. Before Bridgestone, Carson was President of Wema Americas, a leading worldwide supplier of sensors for diesel fuel and emission control applications in heavy vehicles. There, he was responsible for managing Wema’s operations in North and South America. Carson has an Engineering degree with highest honors from Georgia Tech, a degree in Economics from the University of Michigan, and an MBA from Vanderbilt University.


Julia H. Ceaser-Bolster

Julia Ceaser Bio PhotoJulia H. Ceaser-Bolster is Vice President of Finance, Administration and HR of STW. She was part of the original start up team that established STW Technic’s presence in the United States, coordinating a wide spectrum of activities involving Finance, Human Resource, IT, Administration and Logistics. Before joining STW, Julia worked with the German American Trade Center helping German companies understand and embrace the U.S. business culture. She was instrumental in the successful start up of many US Subsidiaries of German Companies including direct suppliers to BMW, Greer-SC and Mercedes, Tuscaloosa-AL as well as suppliers to Ciba Geigi in Georgia. Julia is originally from Kassel, Germany and lived in New York and New Orleans before moving to Atlanta.


John Sibiski

John Sibiski Bio PhotoJohn is STW Technic’s Head of Sales and Marketing.  John is a veteran of the mobile controls world with a long history of increasingly senior sales and marketing positions. John has an electrical engineering degree from the University of South Florida.  He joined IFM immediately after graduation and began work in the industrial sensor world.  His extraordinary success in technical sales resulted in subsequent promotions to branch and regional sales management.  When IFM entered the mobile controls marketplace, John was chosen to launch the effort and did a great job building IFM’s business in this new area.  Since joining STW Technic in early 2010 John has already had a big impact on our growth and success.


Andres Rojas

Andres Rojas Bio PhotoAndres Rojas is STW’s Engineering Manager. Andres is responsible for overseeing all activities within the Engineering department and coordinating the efforts of our engineering staff. Andres started with STW in 2010, working initially as an application engineer assuring client satisfaction and supporting the engineering team in its development efforts. He moved on to become the project manager for our engineering team and helped guide our internal project development. Andres has helped our company implement processes that create organization within our team and improve our internal communication, customer support experience, and project management tasks. Originally from Colombia, moved to Miami in 2003 and later transferred to Atlanta in 2008 to pursue his education in Electrical Engineering at the Georgia Institute of Technology.