People behind Robling
Robling leadership has dedicated their careers to retail and analytics.

Jeff Buck


Jeff has dedicated his career to retail, analytics and large scale data warehousing and business intelligence. In 2001 he started QuantiSense, a software company providing end-to-end analytics to the specialty retail industry. For thirteen years he ran QuantiSense as CEO until it was acquired in late 2014 by Aptos. After two years at IBM in retail AI and analytics, Jeff started Robling to solve the industry-wide retail data integration problem.

Jeff has a mechanical engineering degree from Dartmouth College and started Dartmouth Formula Racing, now in its third decade. He is a mountain biker, skateboarder and dedicated father of two teenage kids.

Dr. Juan Esteban Pereira

Dr. Juan Esteban Pereira

Chief Design Officer

Juan has been in business intelligence, analytics and data warehousing for 23 years and was a co-founder of QuantiSense, a software company providing enterprise analytics to the specialty retail industry. Juan was responsible for the end-to-end design and implementation of QuantiSense’s technology. Over 40 retailers benefitted from his work as happy customers.

Juan has a PhD from Cornell University in Operations Research in which many of the algorithms share a foundation with AI. In his free time Juan enjoys photography, cultural events around his home in Washington, DC and is the father of two wonderful children.

C.J. Gunn

C.J. Gunn

Director, Customer Success

C.J. has worked in the Data and Analytics space for nearly 20 years. After working at Procter & Gamble for over a decade, leading database development for global applications and managing analytics projects for some of the largest retailers in the world, he joined QuantiSense in 2013. As a hands-on Services team leader, C.J. worked directly with customers to drive excellence in delivery and help ensure product quality via continuous feedback loops. C.J. is passionate about delighting customers!

C.J. earned his degree in Systems & Computer Science from Howard University. He and his wife, Kelly, have two young boys. When C.J.’s not doing cool stuff with data, you can find him playing golf, trying a new craft beer, spending time with friends and family, or playing video games.