Senior Mechanical Engineer: Facility Analysis & 3D Modeling

Leidos Inc; Reston (VA); On-site; USD 131,000 - 237,000; Full time

Job summary

Leidos in Reston, Virginia seeks an experienced Senior Mechanical Engineer to support critical national security missions. The role analyzes facility designs, MEP systems, and vulnerabilities in denied-access environments, delivering technical reports and 3D models for defense stakeholders.

Responsibilities include building high-fidelity simulations, interpreting drawings, and guiding decisions with incomplete information.

Qualifications

• Must possess an in-scope and active TS/SCI Polygraph clearance; U.S. Citizenship required.
• Understanding of engineering principles across technical programs and mission challenges.
• Bachelor's degree with 12+ years or Master's degree with 10+ years of relevant experience.
• Experience in facility analysis, infrastructure vulnerability assessments, and mechanical engineering in DoD/IC or commercial environments.
• MEP systems design, integration, and operation in complex facilities including containment, filtration, and backup power.
• Ability to identify HVAC equipment, estimate system size and capacity, and assess capabilities by visual analysis.
• Ability to evaluate large datasets from diverse sources including field data and manuals.
• Proficiency in 3D modeling, engineering analysis, and physical simulation methodologies.
• Experience interpreting engineering drawings, facility layouts, blueprints, and intelligence-derived data.
• Ability to make sound technical judgments with incomplete information and communicate assumptions clearly.

Responsibilities

• Analyze and characterize facility layouts, architecture, and workflows in denied-access environments to determine purpose and capacity.
• Evaluate facility and infrastructure designs to identify vulnerabilities and mission impacts.
• Develop high-fidelity 3D models and conduct engineering simulations of facility operations.
• Assess supporting facility systems with emphasis on MEP integration and functionality.
• Translate data and assessments into technical reports, CAD/BIM products, and analyses for DoD stakeholders.
• Support R&D initiatives to advance methodologies, modeling capabilities, and mission solutions.
• Serve as a subject matter expert providing engineering guidance to meet mission requirements.

Skills

Engineering principles

Decision-making under uncertainty

Attention to detail

Team collaboration

Education

Bachelor's degree +12+ years

Master's degree +10+ years

Tools

Autodesk Revit

VENTSIM

ETAP

CAD modeling tools

Job description

Leidos in Reston, Virginia seeks an experienced Senior Mechanical Engineer to support critical national security missions. The role analyzes facility designs, MEP systems, and vulnerabilities in denied-access environments, delivering technical reports and 3D models for defense stakeholders.

Responsibilities include building high-fidelity simulations, interpreting drawings, and guiding decisions with incomplete information.