Senior Mechanical Engineer - TS/SCI, Mission-Critical Systems

Leidos; Reston (VA); On-site; USD 154,000 - 278,000; Full time

Job summary

Leidos in Reston, Virginia seeks a Principal Mechanical Engineer to support national security missions, focusing on assessment, reverse engineering, and characterization of complex facilities in denied environments.

The role requires leading analyses of facility designs, modeling critical infrastructure, and producing detailed technical reporting for DoD stakeholders, with emphasis on MEP integration and simulations.

Qualifications

• Active TS/SCI Polygraph clearance and U.S. citizenship.
• 15+ years of relevant experience in facility analysis and mechanical engineering.
• Experience with DoD/IC environments and complex facility vulnerabilities.
• Strong BIM/3D modeling and engineering simulation skills.

Responsibilities

• Reverse engineering and characterize facility layouts in denied-access environments.
• Perform vulnerability assessments and identify critical failure points.
• Develop high-fidelity 3D models and simulations of facility operations.
• Document analyses in reports and CAD/BIM artifacts for DoD stakeholders.
• Provide technical leadership and SME guidance across multidisciplinary teams.

Skills

TS/SCI clearance

Leadership

Advanced engineering principles

Analytical thinking

Technical communication

Education

Master's degree + 15+ years experience

Doctorate + 13+ years experience

Tools

Autodesk Revit

VENTSIM

ETAP

CAD/Modeling platforms

Job description

Leidos in Reston, Virginia seeks a Principal Mechanical Engineer to support national security missions, focusing on assessment, reverse engineering, and characterization of complex facilities in denied environments.

The role requires leading analyses of facility designs, modeling critical infrastructure, and producing detailed technical reporting for DoD stakeholders, with emphasis on MEP integration and simulations.