Our Experts

James Langley serves as the senior vice president of Trimble’s Transportation Sector and most recently served as general manager of its Enterprise business. He has been in the transportation industry for 25 years, garnering valuable experience from well-known organizations such as UPS, JB Hunt, US Xpress, and most recently as president of Dart Transit. In addition, Langley spent five years with TMW Systems leading its Business Intelligence and Optimization initiatives. A blend of experience in parcel, LTL, TL, intermodal, brokerage, and 3PL operations combined with years of focus on business analytics and logistics engineering give him a unique perspective on the transportation industry both as a technology provider and consumer. Langley received his bachelor’s degree in Transportation and Logistics from the University of Arkansas.

Aristides joined Trimble in 2015 as Vice President of Finance with over 25 years managing financial divisions for major corporations. Prior to Trimble, Aristides was the Chief Financial and Administrative Officer for SAFE Boats International where he played a key role in developing and executing in new markets including South America and Asia Pacific. Aristides is a high-impact, transformational leader with success leading global organizations, profitably growing businesses, increasing enterprise value, and driving operational excellence.

Dan Popkin currently serves as sector vice president, global connected supply chain, for Trimble Transportation. Popkin is responsible for overseeing Trimble’s Shipper and Carrier Transportation Management System and Visibility businesses. Popkin is an avid customer and culture champion, and in his previous role, was the driving force behind the adoption of the Trimble MAPS commercial routing, scheduling, visualization, and navigation platform across a broad range of strategic partners and customers globally.

Popkin graduated cum laude from the Walsh School of Foreign Service at Georgetown University.

Shaun Callaghan currently serves as Sector Vice President, Transportation Sales. Callaghan has successfully managed multiple Trimble Transportation Sales teams over the past 19 years, most recently as Vice President Sales, Trimble Enterprise (formerly TMW Systems) where he was responsible for driving the sales strategy and growth of the business while also leading the Enterprise entrance into new markets in ANZA. Prior to joining Trimble, Callaghan's extensive industry experience included being involved in the management of several larger private fleets. Callaghan holds a Bachelor of Commerce degree from the University of KwaZulu Natal in Durban, South Africa and a Certificate of Logistics from the University of Pretoria.