Senior Mechanical Engineer - Owners Rep

Plan B Climatech is seeking a highly experienced Senior Mechanical Engineer to serve as an Owner’s Representative, overseeing mechanical systems design and execution across commercial construction projects. This role involves bridging the gap between design teams, contractors, and ownership to ensure project goals are met in terms of quality, cost, and schedule.

Responsibilities:

• Act as the Owner’s technical representative for all mechanical (HVAC, plumbing, and related) systems throughout the project lifecycle
• Review and manage design documents, specifications, and engineering calculations for accuracy, completeness, and alignment with owner objectives
• Provide oversight during design development and construction phases, ensuring adherence to project scope, budget, and schedule
• Coordinate with architects, engineers, contractors, and internal stakeholders to resolve design and field issues
• Lead value engineering efforts without compromising system performance or long-term reliability
• Review submittals, RFIs, change orders, and commissioning plans
• Conduct site visits and inspections to monitor installation quality and progress
• Support commissioning activities and ensure systems are delivered fully operational and documented
• Identify risks early and proactively recommend solutions

Requirements:

• Bachelor's degree in Mechanical Engineering
• 10+ years of experience in mechanical engineering, with a strong design background
• Proven experience on commercial projects (e.g., office buildings, healthcare, data centers, mixed-use, institutional)
• Deep knowledge of HVAC systems, building codes, and industry standards
• Experience with design review, construction coordination, and commissioning processes
• Strong understanding of contract documents and project delivery methods (Design-Bid-Build, Design-Build, etc.)
• Prior experience in an Owner's Representative, A/E OR MEP consulting, or construction administration role
• Professional Engineer (PE) license
• Experience working directly with owners or developers
• Familiarity with sustainability standards (LEED, WELL, etc.)
• Exposure to 3D coordination and clash detection workflows