Mechanical Subject Matter Expert

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. The Mechanical Subject Matter Expert Assigned to QA/CX is responsible for ensuring that all electrical and mechanical systems within a data center are installed, tested, and commissioned in accordance with design intent, project specifications, applicable codes, and industry best practices. This role plays a critical part in delivering reliable, safe, and fully operational mission-critical infrastructure by performing inspections, coordinating testing activities, validating system performance, and supporting issue resolution throughout construction and commissioning phases. Responsibilities: Technical Knowledge & Interpretation Demonstrate strong working knowledge of data center electrical and mechanical systems, including power distribution, UPS, generators, HVAC, cooling systems, controls, and life safety systems. Accurately interpret drawings, specifications, submittals, sequences of operation (SOOs), and commissioning plans. Identify discrepancies between design documents and field installations and escalate for resolution. Inspection & Compliance Perform detailed field inspections to verify installations comply with approved drawings, specifications, manufacturer requirements, and applicable codes (NEC, NFPA, ASHRAE, local AHJ). Verify proper installation of equipment, supports, labeling, grounding, clearances, and accessibility. Track deficiencies and punch list items, working with construction teams to ensure timely closure. Testing & Quality Assurance Witness and oversee pressure testing, leak testing, flushing, cleaning, megger testing, and equipment start-ups. Support and observe Factory Acceptance Tests (FATs), Site Acceptance Tests (SATs), and Functional Performance Testing (FPT). Validate operational readiness of systems and ensure testing is executed per approved procedures and commissioning plans. Confirm system performance aligns with design intent and redundancy requirements for mission-critical operations. Documentation & Reporting Maintain accurate and organized QA/QCx documentation, including inspection reports, test results, deficiency logs, and turnover records. Review contractor documentation such as test reports, checklists, and as-built drawings for completeness and accuracy. Support systems turnover, client acceptance, and commissioning closeout packages. Coordination & Communication Collaborate with construction teams, commissioning agents, engineers, vendors, and client representatives to resolve quality and commissioning issues. Participate in coordination meetings, commissioning readiness reviews, and system walkthroughs. Communicate issues clearly and professionally, ensuring alignment across all stakeholders. Safety & Best Practices Enforce site safety policies and support compliance with EHS requirements, including LOTO, PPE, and energized work controls. Promote quality and commissioning best practices throughout all phases of construction and startup. Support continuous improvement by identifying recurring issues and recommending process enhancements. Any other duties or responsibilities that may be assigned to you in your role. Skills Required: Minimum of 2+ years of experience in data center, mission-critical, or large-scale commercial construction QA/QC or commissioning. Strong understanding of electrical and mechanical systems in critical facilities. Experience witnessing and documen…