On Call R&D Mechanical Engineer Jobs in Washington

The Building People delivers integrated solutions that connect technology, buildings, and people to optimize real estate performance, facility operations, and workforce outcomes. With over 450 contracts delivered across 187 project locations, we manage more than 1,700 facilities and support $38.5B in federal and commercial assets. Leveraging AI-driven automation, data analytics, and platform-agnostic systems, we create high-performing, future-ready environments that reduce cost, improve efficiency, and enable mission success. Founded in 2012, we now have over 450 employees supporting 23 federal agencies-making us a trusted leader in delivering technology-infused building solutions across the public sector. The Building People is committed to fostering a workplace where every employee can thrive. Using tools like the Predictive Index, we thoughtfully align individual strengths with team needs -ensuring the right fit, the right role, and long-term success. Our culture is rooted in integrity, innovation, and service. Through our growing philanthropy program, we support communities by focusing on gratitude, giving back, partnerships, and mentorship. Our Market Offerings Include: * Real Estate & Workplace * Facilities Management * Facilities Operations & Maintenance * Project Management & Engineering * Workforce Transformation & Organizational Design * Mission Support * Smart Buildings & Energy Efficiency * Technology Solutions Join our rapidly growing team and help shape the future of real estate, facilities, and community impact. Job Description Please note that this position is for an upcoming position. We are, however, accepting applications for this anticipated need. If you are interested in joining The Building People, we encourage you to APPLY TODAY! The Building People, LLC seeks a Senior Mechanical Engineer to provide on-call mechanical engineering services in support of government facility projects and evaluations. The Senior Mechanical Engineer performs building evaluations, surveys, studies, and design work; reviews construction documents; and documents systems including heating, ventilating, and air conditioning (HVAC), hydronic piping, steam systems, chilled water systems, and complex alternative HVAC systems. The role encompasses load calculations, design of facility management and control systems, energy modeling and analysis, code reviews, value engineering, life cycle cost analysis, quality control, construction administration, and related services. Skills & Requirements Required Experience & Skills * Minimum of 10 years of relevant work experience in mechanical engineering within building systems environments * Experience performing building evaluations, surveys, engineering studies, and developing detailed design documentation for HVAC and mechanical systems * Proficiency in load calculations for complex mechanical systems in commercial or federal facilities * Experience with hydronic piping, steam, and chilled water systems design and specification * Demonstrated ability to perform energy modeling and analysis, life cycle cost analyses, and value engineering studies * Experience creating and editing engineering specifications and reviewing construction documents * Knowledge of applicable mechanical engineering codes and standards for commercial and federal facilities * Experience providing quality control review and construction administration support * All personnel must obtain and maintain a Public Trust (Level 3) security clearance. Preferred Experience & Skills * Experience with alternative or complex HVAC systems design for large federal or law enforcement facilities * Familiarity with GSA construction standards and federal facility management and control systems * Experience designing facility management and automated control systems Required Education * Bachelor of Science (B.S.) or Master of Science (M.S.) Degree in Mechanical Engineering from an accredited university engineering program Active registration as a Professional Engineer (P.E.) in the relevant jurisdiction Preferred Education * Master of Science (M.S.) Degree in Mechanical Engineering * Additional training or credentials in energy modeling or building systems commissioning Qualifications *Salary offered will be commensurate with the candidate's experience, qualifications, and certifications. *Our positions may require a background screening and clearance directly from the Government. *Please note that telework arrangements are subject to change based on customer requirements. ADDITIONAL INFORMATION Competitive benefits for eligible employees include: * Medical & Rx * Dental * Vision * Flexible Spending Accounts * 401(k) Retirement Plan * Life Insurance/AD&D * Long Term Disability and Short-Term Disability * Paid Time Off * Holiday Pay All positions require a background check after acceptance of our offer. The selected candidate will be eligible to begin employment before the background check has been finalized. However, continued employment will be contingent upon the results of your reference/background check from The Building People, LLC. Your position may require special credentialing, clearance, and access as a condition of employment. In the event the government or client does not sponsor or approve your clearance, it may result in termination of your employment. If you need a reasonable accommodation for any part of the employment process, please contact us by email at and let us know the nature of your request and your contact information. Requests for accommodation will be considered on a case-by-case basis. Please note that only inquiries concerning a request for reasonable accommodation will be responded to from this e-mail address. For more information, view the EEO is the Law Poster and Pay Transparency Statement . Powered by Hirebridge