Facilities Mechanical Engineer at Leidos

Chantilly, Virginia, United States -

Full Time

Start Date

Immediate

Expiry Date

25 Jan, 26

Salary

189175.0

Posted On

27 Oct, 25

Experience

10 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Mechanical Engineering, HVAC Systems, Plumbing Systems, AutoCAD, Building Codes, Energy Codes, Load Calculations, Duct Layouts, Piping Layouts, Equipment Sizing, Systems Integration, Project Management, Technical Documentation, Troubleshooting, Communication Skills, Leadership

Industry

Defense and Space Manufacturing

Description

Senior Mechanical Engineer Leidos is seeking a seasoned and innovative Senior Mechanical Engineer to lead the design, maintenance, and configuration management of complex building mechanical systems across a secure site. This role demands deep technical expertise, strategic vision, and hands-on leadership in systems such as air handlers, chillers, boilers, and pumping infrastructure. The ideal candidate thrives in multidisciplinary environments and brings a proven ability to troubleshoot, optimize, and elevate mechanical and control systems performance. Key Responsibilities Lead end-to-end mechanical design from concept through production, ensuring robust, efficient, and compliant systems. Partner with Operations & Maintenance (O&M) teams to drive proactive and responsive maintenance strategies. Collaborate cross-functionally with electrical, systems, and architectural teams to ensure integrated, mission-ready designs. Perform rigorous analyses to validate mechanical performance in operational environments. Author and review technical documentation, including engineering reports, design packages, and maintenance policies. Oversee construction and renovation efforts, ensuring mechanical scope aligns with strategic goals, budgets, and timelines. Establish and refine facility standards, maintenance protocols, and site-specific operating procedures. Troubleshoot complex system issues, recommending and implementing corrective actions with precision. Produce detailed AutoCAD drawings, submittals, and specifications tailored to site requirements. Basic Qualifications Current Top Secret SCI security clearance and the ability to pass a polygraph. Bachelor’s in Mechanical Engineering with 8–12 years of experience, or Master’s with 6–10 years. Registered Professional Engineer (PE) in good standing or ability to obtain PE within a reasonable time frame. Minimum 8 years of experience designing HVAC and plumbing systems for commercial, industrial, or government facilities. Strong command of building and energy codes; capable of performing load calculations, duct and piping layouts, and equipment sizing. Expertise in AutoCAD and familiarity with EMCS/FMCS systems. Demonstrated ability to resolve complex, multidisciplinary technical challenges. Exceptional communication skills; able to engage senior leadership and stakeholders on technical strategy and execution. Proven success in developing and implementing commercial HVAC systems. Preferred Qualifications Current Polygraph Recognized Subject Matter Expert (SME) in mechanical systems. PE certification. Field experience in mechanical construction, systems integration, and testing. Proficiency in project management: scheduling, budgeting, and resource planning. At Leidos, we don’t want someone who "fits the mold"—we want someone who melts it down and builds something better. This is a role for the restless, the over-caffeinated, the ones who ask, “what’s next?” before the dust settles on “what’s now.” If you’re already scheming step 20 while everyone else is still debating step 2… good. You’ll fit right in. Original Posting: October 26, 2025 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 $104,650.00 - $189,175.00 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. Leidos Leidos is a Fortune 500® innovation company rapidly addressing the world's most vexing challenges in national security and health. The company's global workforce of 47,000 collaborates to create smarter technology solutions for customers in heavily regulated industries. Headquartered in Reston, Virginia, Leidos reported annual revenue of approximately $15.4 billion for the fiscal year ended December 29, 2023. 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 here. Securing Your Data Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to spam.leidos@leidos.com. Commitment and Diversity 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.

Responsibilities

Lead the design, maintenance, and configuration management of complex building mechanical systems. Collaborate with cross-functional teams to ensure integrated designs and oversee construction efforts.