Mechanical Commissioning Technician

As a Mechanical Commissioning Technician working with the LotusWorks team, you will be based on a client site within the Semiconductor sector at a state-of-the-art facility in Leixlip, Co. Kildare.

You will be responsible for both decommissioning and commissioning of facilities equipment across utility and process systems, supporting the safe start-up, testing, and handover of mechanical systems in a live, high-tech manufacturing environment. You will be responsible for the mechanical connection and installation of process tools, supporting tool start‑up activities during a semiconductor facility ramp‑up. The role operates in a fast‑paced, schedule‑driven environment and requires close coordination with multiple trades and project teams.

• →This position is responsible for the commissioning and de-commissioning of a range of Mechanical associated Live Systems, including but not limited to those listed below: 
  • →Air Handling Units (AHUs) 
  • →Chillers and Boilers 
  • →Compressed Air Systems 
  • →Scrubbed Exhaust and General Exhaust Systems 
  • →Water Treatment Systems 
  • →Industrial Waste Systems (IWS) 
  • →Process equipment and associated mechanical services 
  • →Tool hook‑up and turn‑on readiness activities 
  • →Associated piping, fittings, and mechanical interfaces 
• →Work as a Mechanical Technician as part of a wider multi-disciplinary team supporting commissioning and de-commissioning activities.
• →Demonstrate ownership and initiative in a high‑paced, schedule‑driven environment.
• →Deliver assigned tasks in line with project milestones and safety requirements.
• →Carry out all duties in a manner that poses no risk to personnel safety or facility operations.
• →Work with trades to ensure equipment is installed in a safe, compliant, and approved manner.
• →Follow detailed installation and tool turn‑on documentation.
• →Monitor contractor installation workmanship to ensure compliance with specifications.
• →Track mechanical installation activities against the project schedule.
• →Support tool start‑up activities, including inspections, pressure testing, and verification prior to handover.
• →Witness tests and inspections carried out on mechanical systems and connections.
• →Generate Before Action Reviews (BARs) and execute documentation to support decommissioning activities on live systems in line with site procedures.
• →Generate and execute commissioning documentation including OATs and FATs (Operational and Functional Acceptance Tests).
• →Work with Operations and Engineering teams to develop testing protocols and system start‑up procedures.
• →Commission mechanical equipment including pumps, fans, motors, compressors, boilers, chillers, and air handlers.
• →Troubleshoot and resolve system and equipment issues safely and efficiently.
• →Work to tight timelines while maintaining strict safety and quality standards
• →Carry out QA/QC walk-downs of mechanical systems and equipment.
• →Ensure documentation complies with client quality and commissioning requirements.
• →Generate, execute, and maintain commissioning documentation in a controlled and organised manner.
• →Record test results and system performance data.
• →Support the closure of identified field issues and verify that all corrective actions have been effectively implemented
• →Interact and respond to Project and Commissioning Leads direction.
• →Attend daily meetings and provide accurate status updates on assigned systems and activities.
• →Co-ordinate with commissioning, operations, engineering, and safety teams to support system readiness.
• →Communicate clearly and professionally with peers, supervisors, and client stakeholders.
• →Execute all works in strict accordance with site safety protocols, procedures, permits, and approved documentation.
• →The role involves the commissioning and de-commissioning of multiple Live Systems, executed with unwavering adherence to COHE (Control of Hazardous Energy) procedures to ensure the highest standards of safety and operational control.
• →Maintain exceptional attention to safety standards, particularly when working on live monitoring and FMS systems.
• →Identify, report, and mitigate risks associated with Mechanical commissioning & de-commissioning activities.
• →Any other duties or responsibilities that may be assigned to you in your role.   

• Ideally a minimum of 2 years’ industry experience with a mechanical maintenance and /or start up mechanical process, Installation or commissioning environments.
• Strong working knowledge of industrial HVAC and refrigeration systems, including fans, pumps, and associated equipment.
• Excellent troubleshooting and problem-solving skills.
• Ability to work independently and as part of a team in a dynamic, fast-paced environment.
• Proficient in Microsoft 365 suite applications, with the ability to produce accurate documentation and support operational tasks.
• Strong communication, documentation, and interpersonal skills.
• Flexibility and accountability in approach to work.

• Time-served mechanical trades qualification or a Degree in Mechanical Engineering with relevant experience.
• Proof of education, licenses, and certifications will be required where applicable