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Kimley-Horn’s Warrenville, IL office is seeking a Senior Mechanical Commissioning Consultant to help grow our MEP Commissioning practice. In this role, you will plan, schedule, coordinate, and execute full life-cycle commissioning for critical facilities. You will collaborate with the design team and construction partners; witness and document static, startup, and functional performance testing of complex mechanical, plumbing, fire/life-safety interfaces (as applicable), and controls systems; and verify operation in normal, maintenance, and failure modes.

• Lead and participate in all phases of commissioning engagements, including planning, scheduling, coordination, and execution for complex projects (including in new and existing buildings).
• Perform design reviews; confirm design intent, criteria, sequences of operation, and operational requirements for commissioned mechanical and controls systems.
• Develop commissioning plans, checklists, logs, functional performance test scripts, and other documentation to manage and track progress.
• Prepare equipment pre-startup/startup procedures; develop and maintain Standard Operating Procedures (SOPs) and Methods of Procedure (MOPs).
• Lead client-site testing, including integrated systems testing (IST), and compile, analyze, and document test results and corrective actions.
• Direct and/or support functional testing of building mechanical systems, including (as applicable) HVAC airside systems (AHUs, RTUs, FCUs, VAVs, exhaust systems), hydronic systems (pumps, chillers, cooling towers, boilers, heat exchangers), temperature controls/BAS, valve and damper operations, and associated sequences of operation.
• Coordinate with construction contractors, vendors, and testing technicians; interpret drawings, specifications, submittals, and shop drawings.
• Facilitate commissioning meetings; document decisions and action items and prepare meeting minutes as required.
• Perform site observation surveys and prepare field, punch list, and general condition reports; recommend corrective actions as needed.
• Prepare comprehensive commissioning and closeout reports, including deficiencies, functional checklists, recommendations to optimize operations, and O&M documentation inputs.
• Use standard test instruments and fundamental measurement equipment safely and effectively.
• Adhere to all project safety requirements and applicable codes, local regulations, construction practices and specific on-site regulations.

• Excellent written and verbal communication skills; this role requires significant writing, documentation, and client interaction.
• Strong technical writing skills and experience creating, organizing, and maintaining commissioning documentation.
• Proficient with cloud-based construction administration and commissioning tools (e.g. CxAlloy, Procore, etc.)
• Proficiency with Microsoft Word and Excel; familiarity with AutoCAD is preferred.
• Extensive understanding of MEP systems and controls design, installation, and operation.
• Ability to present complex technical information to diverse audiences (e.g., contractors, architects, engineers) with varying levels of technical knowledge.
• Demonstrated experience in commissioning planning and functional testing; building performance investigation (re-/retro-commissioning) and troubleshooting for new and existing facilities.
• Ability to work professionally on site and interact effectively with clients and project partners.
• Comfort working around operating mechanical equipment and systems, including rotating equipment, hydronic distribution, HVAC systems, and building automation/controls interfaces.
• Willingness to travel domestically 60-80% of the time.
• Recognized Professional Cx Certification is preferred (e.g. CCP, BCxP, CxA, etc.)

• 10+ years of field experience as a commissioning agent with demonstrated expertise in MEP system construction, testing and operations.
• Direct field experience working on mission critical facility construction sites is preferred.
• Technical degree or bachelor’s degree in Mechanical Engineering (or a related accredited program) is a plus.

• Exceptional Retirement Plan: 2-to-1 company match on up to 4% of eligible compensation (salary + bonus) and additional profit‑sharing contribution.
• Comprehensive Health Coverage: Low‑cost medical, dental, and vision insurance options.
• Time Off: Personal leave, flexible scheduling, floating holidays, and half‑day Fridays.
• Financial Wellness: Student loan matching in our 401(k), and performance‑based bonuses.
• Professional Development: Tuition reimbursement and extensive internal training programs.
• Family‑Friendly Benefits: New Parent Leave, family building benefits, and childcare resources.

Salary range: $115,000 - $180,000.

This description is not a comprehensive listing of activities, duties or responsibilities that may be required of the employee and other duties, responsibilities and activities may be assigned or may be changed at any time with or without notice.