Senior Mechanical Engineer — Mission-Critical (TS/SCI)

Via Logic LLC; Reston (VA); On-site; USD 143,000 - 237,000; Full time

Job summary

Leidos in Reston, Virginia seeks an experienced Senior Mechanical Engineer to support critical national security missions. The role focuses on analysis, reverse engineering, and characterization of facilities in denied-access environments.

You will evaluate facility systems (MEP), model operations, identify vulnerabilities, and deliver technical insights to DoD stakeholders. This position works with an interdisciplinary team and delivers CAD/BIM outputs and simulations.

Qualifications

• Active TS/SCI Polygraph clearance required and ability to maintain it.
• Bachelor's degree with 12+ years or a Master's with 10+ years of relevant experience.
• Experience in facility analysis, infrastructure vulnerability assessments, and mechanical engineering in DoD/IC environments.
• Strong understanding of MEP systems design, integration, and operation within complex facilities.
• Ability to identify HVAC equipment, size estimates, and assess capacity from visuals.
• Experience handling large datasets from diverse sources and creating technical models.

Responsibilities

• Analyze facility layouts and workflows to determine purpose and capacity.
• Evaluate designs to identify vulnerabilities, single points of failure, and mission impacts.
• Develop high-fidelity 3D models and run simulations of facility operations.
• Assess MEP integration and functionality across complex facilities.
• Translate data into comprehensive reports, CAD/BIM products, and simulations for DoD stakeholders.
• Support R&D initiatives to advance analytical methodologies and modeling capabilities.
• Serve as SME, providing engineering guidance to mission requirements.

Skills

TS/SCI Polygraph clearance

Bachelor's degree + 12+ years

Master's degree + 10+ years

MEP systems design

3D modeling

Engineering analysis

Technical documentation

Education

Bachelor's degree

Master's degree

Tools

Autodesk Revit

VENTSIM

ETAP

Job description

Leidos in Reston, Virginia seeks an experienced Senior Mechanical Engineer to support critical national security missions. The role focuses on analysis, reverse engineering, and characterization of facilities in denied-access environments.

You will evaluate facility systems (MEP), model operations, identify vulnerabilities, and deliver technical insights to DoD stakeholders. This position works with an interdisciplinary team and delivers CAD/BIM outputs and simulations.