Rob Berra joined CH2M HILL as president of its energy and chemicals business group. Most recently, Berra served as executive vice president at Willbros where he was responsible for sales and marketing. He joined Willbros from Foster Wheeler USA where he was senior vice president of commercial operations and was responsible for the company’s heavy oil technology portfolio and chemicals business. Before joining Foster Wheeler, he was portfolio manager of pipeline projects and global manager of engineering, procurement, and construction at ConocoPhillips. Berra has previous executive management experience with The Shaw Group and KBR.