Senior Facilities Mechanical Engineer

Description Senior Facilities Mechanical Engineer Leidos is seeking a seasoned and innovative Senior Facilities 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. We are able to sponsor the clearance process for qualified candidates; however, our preference is to onboard individuals who already hold an active clearance at any level. This role supports a TS/SCI with Polygraph, and Leidos can maintain that clearance for the position. This role may be eligible for a sign-on incentive, which could include additional PTO or a monetary bonus. 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 + No clearance required to begin but must be able to obtain a Top Secret/SCI with Polygraph clearance + Bacheloru2019s in Mechanical Engineering with 8u201312 years of experience, or Masteru2019s with 6u201310 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 + Any level of clearance + Top Secret/SCI with Polygraph clearance + 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 donu2019t want someone who

Created: 2026-01-14