Principal Mechanical Engineer SME

Principal Mechanical Engineer (TS/SCI Required) Location: Reston, VA Leidos is seeking an experienced Principal Mechanical Engineer to support high-priority national security missions in Reston, Virginia. This role focuses on the assessment, reverse engineering, and characterization of complex above-ground and subterranean facilities located in denied-access environments. The successful candidate will leverage extensive engineering expertise to analyze facility designs, spatial layouts, operati…