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Salary
$108k – $195k per year
Location
In office (United States, Boston, Detroit, Pittsburgh)
Seniority
Staff · 8+ years exp
Visa
H-1B filings in 12 months: 50 · green card filings: 24
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 2, 2026. First seen by Alion on Oct 16, 2026. Leidos scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Leidos is an American technology and engineering services company created in 2013 when Science Applications International Corporation split in two, with Leidos taking the technical services and solutions business. It is one of the largest suppliers to the United States government, working across defence programmes, intelligence systems, civil agencies including the Federal Aviation Administration, and healthcare services for the Department of Veterans Affairs. Headquartered in Reston, Virginia, the company also builds security detection products for airports and borders, and has concentrated recent investment on trusted artificial intelligence and autonomy for mission environments.

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 States

Telework 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.

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