Mechanical Engineer

The Leidos National Airspace Systems Integration Support (NISC) Program is looking for a Mechaniccal Engineer to support the Federal Aviation Administration's (FAA) Office.

Must be a Registered Professional Engineer in good standing in the United StatesTelework with 25% travel. Must be located in the Eastern time zone area. Primary Responsibilities

• Design and engineer HVAC, plumbing, fire protection, and mechanical utility systems for government and institutional facilities in accordance with public-sector standards and operational requirements
• Prepare construction drawings, technical specifications, equipment schedules, and engineering calculations suitable for public procurement, competitive bidding, and long-term facility operation
• Coordinate with architectural, civil, structural, electrical, and controls disciplines to integrate mechanical systems within complex, multi-discipline project environments
• Ensure compliance with applicable codes and standards such as ASHRAE, NFPA, ICC, energy codes, and agency-specific design criteria
• Perform load calculations, energy modeling, ventilation analysis, and system sizing to support efficient, resilient, and maintainable designs. Perform engineering calculations (loads, stresses, flow, heat transfer).
• Use specialized mechanical and civil design software (e.g., AutoCAD, Revit MEP, Civil 3D for utility coordination, Carrier HAP/Trace, eQUEST, or similar tools) to develop models and analyses
• Utilize cost estimating and quantity takeoff software (e.g., Bluebeam, RSMeans, Sage Estimating, or comparable platforms) to support budgeting, value engineering, and public funding approvals
• Support construction administration through submittal reviews, RFIs, site visits, commissioning coordination, and verification of installation conformance with design intent
• Fire protection (sprinklers, smoke control, etc)

Mechanical Engineer Basic Qualifications:

• Bachelor of Science degree in Mechanical Engineering from a college or university accredited by the Accreditation Board for Engineering and Technology (ABET)
• 8+ years of applicable experience or (or 6+ years with a Masters degree)
• Professional Engineer License in good US standing
• Ability to obtain and maintain Public Trust Suitability
• Experience with mechanical engineering design and analysis
• Experience testing and evaluation of mechanical systems
• Ability to work effectively in a team environment
• Excellent communication skills
• Proficiency in engineering analysis and design software tools
• Ability to create and edit projects in AutoCad

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

##

##

Original Posting:

October 16, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $107,900.00 - $195,050.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.