John Kalfayan graduated from the University of Arkansas with a B.S. in Mechanical Engineering and a minor in Business. After graduation in 2010, he worked as a Field Engineer in Hydraulic Fracturing for Cudd in the Fayetteville Shale in central Arkansas. John then spent two years with Green Field Energy Services as a Sr. Account Manager supporting their hydraulic fracturing operations in south and west Texas, Oklahoma, Louisiana, and Pennsylvania regions. He then worked for Pro-Stim Services, a frac service company specializing in conventional hydraulic fracturing services, in the ArkLaTex and Gulf Coast areas of operation. John joined Reservoir Data Systems in April of 2015 as a Sr. Account Manager, focusing on sales and technical support in the North East, Oklahoma, and Houston areas. He assists customers by providing technical support for pressure transient testing and analysis, specializing in DFITs and hydraulic fracture communication/interference monitoring.

In his free time John enjoys spending time with his wife and family, as well as hunting, fishing, and watching the Razorbacks. He brings a unique skill set to the team with his business, hydraulic fracturing and well testing experience.