Mechanical Commissioning Lead - London - 145434
5 days ago
London
• Dry coolers / heat rejection equipment, • Alarm escalation, • Control sequences, • Support testing of scenarios including:, • UPS/EPDU dependencies Location: London, UK Sector: Data Centres / Mission Critical Reporting to: Commissioning Manager / Project Manager We are seeking an experienced Mechanical Commissioning Lead to take ownership of the mechanical commissioning delivery on a major Data Centre project in London. The successful candidate will lead the project through mechanical completion, pre-commissioning, functional testing, integrated commissioning and IST readiness, ensuring all mechanical systems are fully tested, documented and demonstrated in accordance with the project requirements and commissioning programme. This is a senior site-based role requiring strong technical and practical knowledge of mission‑critical cooling systems, including chilled water/glycol systems, CRAHs/CRACs, AHUs, pumps, pressurisation systems, controls, BMS interfaces and associated mechanical infrastructure. The Mechanical Commissioning Lead will work closely with the Construction, Electrical, Controls/BMS, QA/QC, Commissioning and Client teams, as well as specialist vendors, to drive systems from construction completion through to final acceptance and handover. The role requires a delivery‑focused individual capable of identifying commissioning constraints early, coordinating multiple stakeholders and driving the project towards key commissioning and IST milestones. • Take overall responsibility for the mechanical commissioning strategy and execution., • Lead and coordinate Mechanical Commissioning Engineers, subcontractors, vendors and specialist commissioning providers., • Develop and maintain the mechanical commissioning programme aligned with the overall project master programme., • Drive mechanical systems through the agreed Level 1–5 commissioning process, where applicable to the project., • Ensure commissioning activities are planned, sequenced and executed safely and efficiently., • Establish clear system and area priorities based on energisation, cooling availability and IST requirements., • Lead daily and weekly commissioning coordination meetings., • Provide clear reporting on progress, constraints, risks and recovery actions., • Chilled water systems, • CRAHs / CRACs, • AHUs and ventilation systems, • Pumps and pump skids, • Pressurisation and expansion systems, • Heat exchangers, • Dry coolers / heat rejection equipment, • Mechanical plant rooms, • Control valves and actuators, • Flow, pressure and temperature instrumentation, • Leak detection interfaces, • Water treatment systems, • Drainage systems, • BMS-controlled mechanical equipment, • Packaged mechanical plant and associated controls, • Work closely with the Mechanical Construction Manager to establish a structured transition from construction completion to commissioning., • Define and manage mechanical completion requirements at system and subsystem level., • Ensure installations are inspected and sufficiently complete before commissioning activities commence., • Review outstanding construction snags and identify items that prevent or impact commissioning., • Drive completion of commissioning‑critical snags., • Ensure equipment is correctly installed, labelled, accessible and ready for testing., • Confirm all required utilities, permanent power, controls and communications are available before testing., • Pipework flushing and cleaning, • Pressure testing, • Chemical cleaning and treatment, • Filling and dosing, • Water quality verification, • System venting, • Pump alignment and rotation checks, • Strainer inspections, • Valve position verification, • Equipment start‐up checks, • Sensor and instrumentation verification, • TAB / air and water balancing, • Flow verification, • Equipment vendor start‑up Ensure all pre‑commissioning documentation and test records are completed and accepted before progressing to functional testing. • Develop, review and execute mechanical Functional Performance Test (FPT) scripts., • Coordinate testing between Mechanical, Electrical, Controls/BMS and specialist vendors., • Verify correct operation of mechanical systems under normal and abnormal operating conditions., • Confirm duty/standby equipment sequencing., • Test automatic changeover and redundancy arrangements., • Verify control sequences against approved Sequence of Operations (SOO)., • Confirm alarms, interlocks, permissives and setpoints., • Verify system response to equipment failures and simulated fault conditions., • Ensure mechanical systems achieve required design flow rates, temperatures, pressures and cooling capacities., • Point‑to‑point testing, • Sensor calibration, • Valve and actuator operation, • Equipment start/stop commands, • Alarm generation, • Alarm escalation, • Setpoint control, • Duty/standby rotation, • Automatic changeover, • Trending, • System graphics, • Control sequences, • Interlocks between mechanical and electrical systems Ensure BMS functionality accurately reflects the approved design and commissioning requirements. • Lead the mechanical preparation for Integrated Systems Testing (IST)., • Confirm mechanical systems are fully commissioned and ready before entry into IST., • Review IST scripts and identify mechanical prerequisites and dependencies., • Coordinate mechanical participation during IST execution., • Verify cooling‑system response during simulated electrical and mechanical failures., • Support testing of scenarios including: Loss of utility power, Generator operation, UPS/EPDU dependencies, Pump failure, CRAH failure, Loss of cooling, BMS communication failure, Duty/standby changeover, System recovery following failure., • Ensure all mechanical issues identified during IST are recorded, rectified and successfully retested., • Develop detailed commissioning programmes and look‑ahead plans., • Produce 6‑week, 3‑week and weekly commissioning plans., • Identify commissioning dependencies and constraints., • Track system readiness against required milestone dates., • Coordinate vendor attendance in accordance with the commissioning sequence., • Review manpower requirements and ensure sufficient commissioning resources are available., • Develop recovery plans where commissioning activities fall behind programme., • Maintain clear visibility of the critical path to commissioning completion and IST., • Commissioning plans, • Commissioning procedures, • Method statements, • Inspection and test plans, • Pre‑commissioning check sheets, • Functional test scripts, • Cause & Effect testing, • Sequence of Operations verification, • TAB reports, • Flushing records, • Pressure‑test certificates, • Water‑treatment reports, • Vendor commissioning reports, • Calibration certificates, • Commissioning trackers, • Snag / punch lists, • System completion certificates, • IST documentation, • Final commissioning reports Ensure documentation is completed progressively rather than being left until final handover. • Ensure commissioning activities comply with project specifications, approved drawings and client requirements., • Manage commissioning defects and punch‑list items through to closure., • Ensure failed tests are formally recorded, investigated, rectified and retested., • Maintain clear traceability of test results and commissioning records., • Support final system acceptance and client witnessing., • Ensure all mechanical commissioning documentation is incorporated into the final handover package., • Project Director, • Commissioning Manager, • Mechanical Construction Manager, • Electrical Commissioning Lead, • Electrical Construction Manager, • Controls / BMS Lead, • CSA Team, • QA/QC Team, • Planning Team, • Design / Engineering Team, • Specialist subcontractors, • Equipment vendors, • Client Commissioning Team, • Independent Commissioning Authority / CxA Maintain strong communication between construction and commissioning teams to ensure constraints are identified and resolved before they affect key milestones. • Ensure all commissioning activities are undertaken in accordance with project H&S requirements., • Review and approve commissioning RAMS where required., • Ensure appropriate controls are implemented for live systems, pressurised systems, rotating equipment and energised plant., • Coordinate commissioning activities with LOTO procedures., • Ensure commissioning personnel understand system boundaries and energisation status., • Stop activities where unsafe conditions exist., • Systems available for commissioning, • Systems under commissioning, • Systems completed, • Tests passed / failed, • Outstanding commissioning activities, • Construction constraints, • BMS/controls constraints, • Vendor issues, • Commissioning snags, • Resource requirements, • Programme risks, • IST readiness, • Recovery actions Maintain accurate commissioning dashboards and trackers showing the actual physical and functional status of each system. • Significant experience in Mechanical Commissioning within Data Centres or Mission Critical environments., • Previous experience as a Mechanical Commissioning Lead, Senior Commissioning Engineer or Commissioning Manager., • Strong knowledge of critical cooling systems and associated controls., • Demonstrable experience commissioning chilled water and/or glycol systems., • Strong understanding of CRAHs, AHUs, pumps, valves and mechanical plant., • Experience with BMS and controls integration., • Experience developing and executing commissioning procedures and functional test scripts., • Understanding of commissioning Levels L1–L5 and IST processes., • Strong understanding of construction‑to‑commissioning handover., • Ability to read and interpret:, • Mechanical schematics, • P&IDs, • Control schematics, • Cause & Effect matrices, • Sequence of Operations, • Commissioning specifications, • Strong planning, coordination and problem‑solving capability., • Ability to manage subcontractors, vendors and commissioning specialists., • Excellent communication and stakeholder‑management skills., • Previous commissioning experience on large‑scale London/UK data centre projects., • Experience delivering hyperscale or colocation facilities., • Experience working directly with client commissioning teams and Commissioning Authorities., • Familiarity with systems such as BMS, EPMS and DCIM., • Relevant Mechanical Engineering qualification., • Commissioning management qualifications/certification., • SMSTS / SSSTS., • Relevant CSCS card., • LOTO / Authorised Person experience., • Strong technical mechanical knowledge, • Data‑centre commissioning experience, • Leadership and ownership, • Excellent planning and organisation, • Strong problem‑solving ability, • Ability to work under programme pressure, • Attention to detail, • Strong documentation discipline, • Commercial awareness, • Effective subcontractor and vendor management, • Strong communication with client teams, • A proactive approach to identifying and removing constraints #J-18808-Ljbffr
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