DESE Research, Inc. seeks a Senior Mechanical Design Engineer to join our team. The Senior Mechanical Design Engineer will design and develop corrosion-resistant HVAC cooling units for instrumentation radar systems at the Reagan Test Site (RTS). Operating in a Digital Engineering environment with tools such as DOORS, SolidWorks, and Creo, the engineer will deliver ruggedized thermal management solutions that withstand saltwater, heat, and humidity. This role emphasizes materials selection, structural integrity, coatings, and surface treatments, with the goal of maximizing system reliability, reducing lifecycle costs, and enhancing operational availability. Position is contingent upon award.