Leidos has a job opening beginning in the Spring/Summer of 2026 for a Mechanical Engineer Intern/Co-Op in Reston, VA. Work will consist of a range of project tasks to include: 3D modeling, simulation, and visualization. Tasks also include integration and implementation of commercial off-the-shelf products. Primary Responsibilities: Receive assignments in the form of objectives and establish goals to meet outlined objectives.Create 3D models of various facilities, equipment, systems and sub-syst