Mechanical Engineer

Leidos; Pittsburgh (Allegheny County); Hybrid; USD 108,000 - 195,000; Full time

Job summary

Leidos is seeking a Mechanical Engineer to support the FAA's NISC program. The role requires a US-registered PE, 8+ years of experience, and the ability to obtain public trust suitability.

Expect hybrid work with 25% travel and location in the Eastern time zone. You will design HVAC, plumbing, fire protection, and mechanical utilities for government facilities, produce specs and drawings, and coordinate with architecture, civil, and electrical teams to ensure code compliance and robust

Qualifications

• ABET-accredited B.S. in Mechanical Engineering.
• Registered Professional Engineer in good standing (US).
• 8+ years of applicable experience (or 6+ with a Masters).
• Ability to obtain and maintain Public Trust Suitability.
• Experience with mechanical 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.

Responsibilities

• Design and engineer HVAC, plumbing, fire protection, and mechanical utility systems for facilities.
• Prepare construction drawings, specifications, equipment schedules, and calculations.
• Coordinate with multi-disciplinary teams to integrate mechanical systems.
• Ensure compliance with ASHRAE, NFPA, ICC, energy codes, and criteria.
• Perform load calculations, energy modeling, ventilation analysis, and sizing.
• Use AutoCAD, Revit MEP, Civil 3D, and other tools for models and analyses.
• Support budgeting, value engineering, and public funding approvals.
• Assist construction administration, submittals, RFIs, site visits, commissioning.

Skills

Professional Engineer License

Public Trust Suitability

Mechanical design & analysis

Team collaboration

Excellent communication

Engineering software proficiency

Education

ABET-accredited B.S. in Mechanical Engineering

Tools

AutoCAD

Revit MEP

Civil 3D

Carrier HAP/Trace

eQUEST

Job description

Description

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 onlyand 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.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Securing Your Data

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at [e-mail].

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

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