Mechanical Engineer, PE - Mid-Level Location: Atlanta, GA, Chicago, IL or Washington D.C. (Chantilly, VA) Exp Federal delivers full-service Architecture & Engineering services, construction, and facility management services throughout the world. Exp Federal's mission is to provide superior technical solutions to the U.S. federal government utilizing skilled personnel familiar with working throughout the United States and overseas. The Challenge: We are seeking a Mechanical Engineer with HVAC