 In 1980, Heckenkemper began his career working for Poe and Associates as a senior land planner that included a partnership with Jack Nicklaus and Associates.Their work included large-scale Master Planned communities throughout the United States.In 1983, Heckenkemper assisted the partnership of Tom Weiskopf and Jay Morrish, where he participated in several high-profile golf courses including Troon Country Club and TPC Scottsdale in Arizona.