The Mechanical Commissioning Project Engineer owns mechanical commissioning planning, readiness, quality coordination, and test execution oversight for the project
Reports to the Commissioning Project Lead and partners closely with mechanical contractors, equipment vendors, design/engineering teams, the electrical commissioning lead, controls stakeholders, and vendor field/test engineers
Responsibilities
Develop and maintain the mechanical commissioning scope, readiness criteria, inspection strategy, and discipline test execution plan
Review mechanical design packages, specifications, submittals, method statements, controls narratives, sequence assumptions, and testing requirements for commissionability and risk
Coordinate mechanical QA/QC inspections with contractors and vendor field/test engineers, including installation checks, pre-functional readiness, deficiency capture, and closeout tracking
Own mechanical commissioning procedure development and review, including equipment startup, functional testing, controls verification, balancing prerequisites, failure mode validation, and integrated systems testing inputs
Coordinate with equipment vendors on factory/site acceptance requirements, startup support, test prerequisites, documentation packages, and vendor participation during critical tests
Support readiness and execution for cooling, ventilation, hydronic, pumping, heat rejection, controls, and other project-specific mechanical systems
Lead discipline-level review of mechanical test results, deficiencies, corrective actions, retest requirements, trend logs, and acceptance evidence
Maintain mechanical commissioning dashboards and status inputs for the Commissioning Project Lead
Partner with the Electrical Commissioning Lead on cross-discipline dependencies
Support turnover by confirming mechanical documentation, as-built evidence, test records, trend data, and outstanding issue disposition are complete
Requirements
8+ years of mechanical commissioning, mechanical construction, field engineering, startup, testing, balancing coordination, controls verification, or owner representative experience on complex technical infrastructure projects
Strong knowledge of mechanical system startup, functional performance testing, controls interfaces, cooling or ventilation systems, hydronic systems, and equipment/vendor startup workflows
Experience reviewing commissioning specifications, inspection checklists, functional test scripts, vendor startup procedures, test reports, and trend evidence
Ability to coordinate field execution across contractors, equipment vendors, QA/QC teams, commissioning partners, and project leadership
Strong practical judgment around readiness, safety, sequencing, test prerequisites, performance validation, and risk escalation
Comfort working in construction environments with evolving schedules and multiple parallel work fronts
Clear technical writing skills and discipline in maintaining logs, test evidence, issue records, and decision history
Ability to be present at the project site during critical mechanical installation, startup, controls checkout, functional testing, and integrated testing windows
Preferred Skills
Owner-side or commissioning agent experience on mission-critical, industrial, manufacturing, data center, or other high-reliability facilities
Professional engineering, commissioning, controls, balancing, or equivalent field qualification
Experience with integrated systems testing and coordination between mechanical, electrical, controls, and operations teams
Familiarity with digital issue tracking, commissioning management platforms, schedule tools, trend tools, and field reporting workflows