Mechanical Commissioning Engineer

LotusWorks is an Engineering Services provider specializing in managing Commissioning, Construction Services, Calibration, Operations & Maintenance scopes of work within global manufacturing facilities. LotusWorks operates globally across EMEA and North America partnering with the world's leading manufacturers across the Semiconductor, Pharmaceutical & Biologics, Medical Device and Data Centre sectors. Our team of Engineering and Technical professionals is immersed in cutting-edge technologies and innovations. LotusWorks is committed to a diverse and inclusive workplace, integral to our people-first approach. We are seeking a Mechanical Commissioning Engineer to join our team in a data center, commissioning and conducting quality inspections on all mechanical systems. Working independently from trade installation crews, this role ensures that all mechanical installations, equipment, and systems comply with project specifications, applicable codes and standards, quality requirements, and Owner expectations. The ideal candidate has a strong background in mechanical construction, QA/QC, or commissioning within mission-critical facilities. This individual will perform detailed inspections, witness testing and commissioning activities, identify and document non-conformances, and maintain comprehensive quality records to support successful system turnover and project completion. Success in this role requires exceptional attention to detail, sound technical judgment, strong documentation skills, and a commitment to maintaining the highest standards of quality and safety throughout every phase of the project. In addition to base compensation, this position offers a $4,000 quarterly stipend, $1,120 weekly per diem, and a $6,000 project completion bonus. Responsibilities: Pre-Construction & Design Review Review Issued for Construction drawings, specifications, and Owner standards to identify QC risk areas including clarity, tolerances, and acceptance criteria. Review and comment on shop drawings, submittals, method statements, and Inspection & Test Plans (ITPs) for compliance. Validate material control and traceability plans (serial numbers, batch numbers, long-lead items). Produce deliverables: Design QC risk register, annotated submittal comments, and list of critical inspections and witness points. Support project managers with schedule planning, resource allocation, and progress reporting to ensure successful project execution. Factory Acceptance Testing (FAT) & Factory Inspections Plan and witness FAT and factory inspections for critical mechanical equipment, including: Chillers, CRAH/CRAC units, and associated controls Prefab/modular mechanical skids Verify test procedures, instrumentation calibration, acceptance criteria, and corrective actions. Confirm firmware versions, settings, and as-built configurations match approved submittals. Produce deliverables: FAT reports (with photos), deviations/NCRs, and vendor punchlist closure documentation. Daily Site QC Inspections Implement and manage daily QC inspections per approved ITPs across all mechanical scopes. Inspect piping cleanliness and flushing procedures. Conduct and document hydrostatic tests. Perform weld inspections to applicable code standards. Verify insulation thickness and quality. Check equipment alignment and vibration isolation. Enforce Foreign Material Exclusion (FME) programs for mechanical spaces. Validate mock-ups, first-of-kind installations, and hold points before production work proceeds. Conduct materials receiving inspection (damage, compliance, certificates). Issue and track NCRs; verify corrective actions and re-inspection. Fire & Life Safety – Mechanical Scope Inspect suppression agent quantities and detection zoning. Witness and document pre-action system tests. Verify penetration firestopping and signage compliance. Commissioning Witnessing & Verification Witness and document pre-functional checks and functional performance tests for mechanical systems…