Mechanical Engineer

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

Job summary

Leidos is seeking a Mechanical Engineer to design and integrate HVAC, plumbing, fire protection and mechanical utilities for government facilities in the FAA program. You will produce drawings, specs, and calculations for public procurement and facility operation.

This role requires a US-registered PE, ABET-accredited mechanical engineering degree, 8+ years of experience (or 6+ with a Master's), and strong teamwork and communication skills. Must be in US Eastern time zone with 25% travel.

Qualifications

• Bachelor of Science degree in Mechanical Engineering (ABET-accredited).
• 8+ years of applicable experience or 6+ years with a Master's degree.
• Professional Engineer license in good US standing.
• 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 utilities for facilities.
• Prepare drawings, specifications, equipment schedules, and calculations for procurement/operation.
• Coordinate with architectural, civil, structural, electrical, and controls disciplines.
• Ensure compliance with ASHRAE, NFPA, ICC, energy codes, and agency criteria.
• Perform load calculations, energy modeling, ventilation analysis, and system sizing.
• Develop models using AutoCAD, Revit MEP, Civil 3D, Carrier HAP/Trace, eQUEST.
• Support budgeting with cost estimating tools like Bluebeam, RSMeans, Sage Estimating.
• Assist construction administration: submittals, RFIs, site visits, commissioning.
• Fire protection design including sprinklers and smoke control.

Skills

Engineering analysis

Team collaboration

Communication skills

Public procurement experience

Ability to obtain Public Trust

Education

ABET-accredited B.S. in Mechanical Engineering

Professional Engineer (PE) license

Tools

AutoCAD

Revit MEP

Civil 3D

Carrier HAP/Trace

eQUEST

RSMeans / Sage Estimating

Bluebeam

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.

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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