Principal Civil Engineer: TS/SCI Poly

Leidos Inc; Reston (VA); On-site; USD 139,000 - 251,000; Full time

Job summary

Leidos Inc. is seeking a Principal Civil Engineer to support high-priority national security missions in Reston, Virginia. The role involves reverse engineering, 3D modeling, and vulnerability assessments of complex facilities in denied-access environments.

The ideal candidate will have extensive experience leading technical analyses, collaborating with government and contractor teams, and delivering engineering insights for mission planning and decision-making.

Qualifications

• Requires in-scope TS/SCI Polygraph clearance and U.S. Citizenship.
• Master's degree with 15+ years of relevant experience, or Doctorate with 13+ years of relevant experience.
• Experience in facility analysis, infrastructure vulnerability assessments, and structural engineering in DoD/IC environments.
• Industrial & Facility focus on chemical, nuclear, or biological processes and their footprints.
• MEP systems knowledge including containment, filtration, and backup power.

Responsibilities

• Analyze complex industrial processes, equipment configurations, and facility designs to determine attributes and mission relevance.
• Evaluate underground facilities and hardened structures for survivability.
• Create accurate 3D models of facilities, underground structures, floor plans, and utilities.
• Conduct vulnerability and resilience assessments of critical infrastructure against threat vectors.
• Assess workflows and HVAC, power, and utility systems supporting facilities.
• Prepare engineering assessments and technical reports per Intelligence Community standards.
• Provide expert technical leadership and coordinate with multi-disciplinary teams.

Skills

Engineering principles

TS/SCI Polygraph clearance

Problem solving

Education

Master's degree + 15+ years

Doctorate + 13+ years

Tools

Autodesk Revit

BIM

VENTSIM

ETAP

Job description

Leidos Inc. is seeking a Principal Civil Engineer to support high-priority national security missions in Reston, Virginia. The role involves reverse engineering, 3D modeling, and vulnerability assessments of complex facilities in denied-access environments.

The ideal candidate will have extensive experience leading technical analyses, collaborating with government and contractor teams, and delivering engineering insights for mission planning and decision-making.