Building Commissioning EngineerA growing engineering and construction services firm specializing in the retrofit and renovation of public sector facilities is seeking an experienced Building Commissioning Engineer to support projects throughout Illinois, Wisconsin, and Indiana.This role is responsible for leading and executing commissioning activities on building systems for renovation, retrofit, and energy performance projects across municipal, K-12, higher education, healthcare, and other public facilities. The Commissioning Engineer will ensure that mechanical, electrical, plumbing, and building automation systems are designed, installed, tested, and operating according to project requirements and owner expectations.The ideal candidate will have 7+ years of commissioning, controls, or building systems experience, strong technical knowledge of building systems, and recognized commissioning certifications.Key ResponsibilitiesCommissioning ExecutionLead and manage building commissioning activities from design through project closeout.Review design documents, specifications, and submittals to verify alignment with Owner Project Requirements (OPR) and Basis of Design (BOD).Develop commissioning plans, pre-functional checklists, and functional performance tests.Coordinate commissioning schedules with project managers, contractors, and facility stakeholders.Perform and document functional performance testing of building systems.System ExpertiseHVAC systems (air handling units, boilers, chillers, heat pumps, VRF systems)Building Automation Systems (BAS) / ControlsElectrical distribution systemsLighting controlsDomestic hot water systemsEnergy efficiency systems and retrofitsField ActivitiesConduct site visits and system inspections during installation and start-up phases.Identify deficiencies and coordinate resolution with contractors and project teams.Verify system sequences of operation and control integration.Witness equipment startup and system performance testing.Documentation & ReportingPrepare commissioning reports, issue logs, and test documentation.Maintain commissioning documentation throughout project lifecycle.Assist with training and turnover documentation for facility staff.Provide technical input on energy performance and system optimization.Client & Team CoordinationInterface with engineers, contractors, and public sector facility owners.Support internal project teams including project managers, engineers, and energy specialists.Participate in project meetings and provide commissioning status updates.Required Qualifications7+ years of experience in building commissioning, HVAC engineering, building controls, or related field.Strong technical knowledge of mechanical and electrical building systems.Experience commissioning retrofit and renovation projects.Ability to perform functional testing and troubleshoot building systems.Experience reviewing construction documents and technical specifications.Strong written and verbal communication skills.Ability to travel to project sites across Illinois, Wisconsin, and Indiana.Preferred CertificationsCertified Commissioning Professional (CCP) – Building Commissioning AssociationCxA – Certified Commissioning Authority – AABC Commissioning GroupBCxP – Building Commissioning Professional – ASHRAELEED APProfessional Engineer (PE) – preferred but not requiredPreferred BackgroundExperience commissioning public sector facilities, including:K-12 schoolsUniversitiesMunicipal buildingsHealthcare facilitiesExperience with energy retrofit or performance contracting projectsFamiliarity with ASHRAE commissioning guidelines and industry standards.EducationBachelor's degree in Mechanical Engineering, Electrical Engineering, Architectural Engineering, or related field preferred.Equivalent technical experience will be considered.Work EnvironmentBased in Hoffman Estates, IL with regional travel to project sites throughout the Midwest.Combination of office work, remote coordination, and field site visits.Collaborative team environment focused on improving building performance and energy efficiency for public sector clients.Why JoinWork on impactful projects improving public infrastructure and energy performance.Exposure to complex building systems and high-value retrofit projects.Opportunity to grow within a firm focused on technical excellence and sustainable building performance.