**Description**

Leidos has an exciting opportunity for an experienced **Civil Engineer** to support highly specialized mission requirements in Reston, Virginia. In this role, you will assess, reverse engineer, and characterize the physical, architectural, and functional attributes of complex above-ground and subterranean facilities located in denied-access environments.

The successful candidate will leverage deep engineering expertise to reconstruct facility layouts, operational workflows, and supporting infrastructure associated with chemical, biological, radiological, and nuclear (CBRN) industrial processes. You will evaluate facility vulnerabilities, identify potential threat vectors, and provide critical insights that support national security objectives.

This position requires a creative yet disciplined problem solver who can develop sound engineering assessments when complete information is not available. Success in this role demands exceptional atten...