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LotusWorks

Compressors and Chillers Operations & Maintenance Technician

Chandler, Arizona, United States · On-site · Operations & Maintenance - Semiconductor

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About the role

SAP
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 Center 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 an experienced Mechanical Operations & Maintenance Technician to support the operation, maintenance, and reliability of systems in a mission-critical environment. The ideal candidate will have a strong background in performing preventive and corrective maintenance across a range of mechanical equipment including chillers, cooling towers, and compressors. This role ensures safety, compliance, and consistent system readiness to support client and facility operations. Responsibilities: - Perform preventive and corrective maintenance on chillers, cooling towers, and compressors in accordance with OEM requirements, internal standards, and best practices. - Execute all scheduled maintenance (quarterly, semi-annual, annual, multi-year) per defined intervals, ensuring proper documentation, coordination, and operational readiness. - Conduct annual chiller PMs during low-load months and ensure all units are fully operable before seasonal demand periods. - Complete semi-annual chiller PMs approximately five to seven months apart from annual PMs to maintain performance and reliability. - Perform quarterly and annual maintenance on cooling towers, including drift eliminator inspections and system condition reporting. - Ensure all inspections are performed and documented within the required timeframes and maintenance windows. - Immediately report any major equipment failures or safety-related findings to site leadership. - Conduct compressor PMs (semi-annual and annual) to maintain reliability and minimize downtime, ensuring only one unit is offline at a time unless otherwise coordinated. - Coordinate system outages and handoffs with operations teams to avoid process or production impacts. - Perform full Lockout/Tagout (LOTO) procedures prior to maintenance, verify zero-energy state, and safely restore systems upon completion. - Execute corrective maintenance as needed, including troubleshooting, parts replacement, and performance verification. - Complete all in-scope repairs such as oil and filter changes, refrigerant filter/dryer replacements, instrumentation calibration, leak repairs, insulation or paint touch-ups, and electrical or mechanical troubleshooting. - For repairs requiring refrigerant removal, obtain approval, provide detailed cost estimates, and perform work only after authorization. - Follow all EPA and environmental compliance standards for refrigerant handling, recovery, and documentation. - Ensure all refrigerant boundary repairs are leak-tested and verified prior to system restart. - Properly contain and dispose of oil, filters, and waste materials to prevent environmental or system alarms. - Use OEM-specified materials and components unless otherwise approved. - Maintain a spare parts inventory of critical items (e.g., fan-train components, vibration switches, oil switches, belts, motors) to support rapid response and minimize system downtime. - Support reliability and uptime by performing regular system inspections, trending performance data, and escalating abnormal conditions. - Participate in root cause analysis (RCA) and reliability improvement initiatives for repeated failures. - Document all work activities, labor hours, materials, and as-found/as-left conditions in the CMMS (Maximo, eMaint, SAP PM, or equivalent). - Generate and submit inspection reports, PM closeouts, and cost summaries as required. - Comply with all site safety requirements, including PPE use, elevated work, confined space entry, and environmental controls. - Coordinate closely with team leads, maintenance planners, and engineers to ensure safe and effective execution of all tasks. - Maintain professionalism, cleanliness, and strong communication throughout all maintenance activities. - Participate in technical and safety training to maintain or expand qualifications. - Achieve zero safety incidents, complete all PMs on time, maintain LOTO compliance, and ensure thorough documentation across all assigned systems. - Perform other duties and responsibilities as assigned. Skills Required: - 2–5 years’ hands-on experience in operations and maintenance within mission-critical or industrial facilities. - Broad technical knowledge of mechanical systems including chillers, cooling towers and compressors. - Ability to troubleshoot, maintain, and escalate issues with equipment and systems effectively. - Knowledge of environmental, health, and safety standards in mission-critical environments. - Strong communication and collaboration skills for working with engineers, vendors, and operations staff. - Attention to detail with accurate documentation and monitoring of system performance. - Ability to remain proactive and responsive in fast-paced, high-stakes environments. Education / Licenses / Certifications - High School Diploma or equivalent, required. - Associate’s, Bachelor’s degree or technical certificate in a related field preferred but not required. - Proof of education, licenses, and certifications will be required where applicable. Benefits: - Medical, Dental and Vision Insurance - Life, Short-Term, Long-Term Disability Insurance - Training and Education Assistance - 401k Retirement Plan - Extra Annual Leave with Years of Service - Maternity/Paternity Leave - Recognition Rewards #INDHP #LI-DNI LotusWorks is an equal opportunity employer and prohibits discrimination and harassment of any kind. We are committed to creating a diverse and inclusive workplace where all employees feel valued, respected, and empowered.