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Facilities Mechanical Engineer

Leidos971 open roles

Where
Springfield, VA
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Your applicationOpen nowFacilities Mechanical EngineerLeidos · Springfield, VA

  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

  4. CV RocketApplied on Leidos's own form.

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The clock on this job

Early applications get read.

8.1% of postings close within 7 days. Measured by our own scanner across the market. Leidos postings stay open a median of 3 days.

Share of postings closed within
  1. 1.7%1 day
  2. 3.6%3 days
  3. 8.1%7 days
  4. 15.1%14 days
  5. 34.0%30 days
This job: posted today

Leidos median: 3 days open

The posting

Leidos is seeking an experienced Facilities Mechanical Engineer to lead the design, maintenance, and configuration management of building mechanical systems across mission-critical sites. This role demands deep technical expertise, creative problem-solving, and leadership in projects involving air handlers, chillers, boilers, pumping systems, and other complex mechanical infrastructure. The ideal candidate will have a strong background in managing and troubleshooting mechanical and control systems in dynamic environments.

Primary Responsibilities

  • Lead mechanical design and development efforts from concept through production.
  • Create and review AutoCAD design documents, submittals, and site-specific specifications.
  • Collaborate with cross-functional teams—including electrical, systems, software, and manufacturing—to ensure mechanical designs meet all functional and environmental requirements.
  • Conduct engineering analyses to validate mechanical designs under operational conditions.
  • Develop and maintain comprehensive site documentation.
  • Troubleshoot design and maintenance issues; recommend and implement corrective actions.
  • Ensure compliance with applicable building codes, energy standards, and industry regulations.

Basic Qualifications

  • Must have an active TS/SCI with a Polygraph clearance.
  • Bachelor’s degree in Mechanical Engineering with 12+ years of relevant experience, or Master’s degree with 10+ years. Additional experience may be considered in lieu of degree.
  • Minimum of 10 years of experience in mechanical systems design, including HVAC and plumbing, for commercial, industrial, or government facilities.
  • Strong working knowledge of building codes, energy standards, and regulatory frameworks.
  • Proven ability to perform heating and cooling load calculations, ductwork sizing/layout, piping system design, and equipment selection.
  • Demonstrated expertise in CAD tools such as AutoCAD.
  • Experience developing mechanical systems for commercial HVAC applications.
  • Ability to effectively communicate with stakeholders, contractors, and regulatory authorities.
  • Familiarity with Facility Management Control Systems (FMCS).
  • Active Professional Engineer (PE) license or ability to obtain licensure within one year of hire.

Preferred Qualifications

  • Experience troubleshooting and repairing control system

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 6, 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 $131,300.00 - $237,350.00

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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