
LotusWorks · Chandler
LotusWorks is an Engineering Services provider specializing in managing Commissioning, Construction Services, Calibration, Operations & Maintenance scopes of wo...
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.
LotusWorks is seeking a detail-oriented Operations Technician to support the daily operation, maintenance, and preservation of
critical equipment in a high-tech semiconductor facility. This role is essential in ensuring systems remain reliable, safe, and
compliant with industry standards. The ideal candidate will have strong technical skills, a safety-first mindset, and the ability
to collaborate closely with engineers and vendors in a fast-paced environment.
standards, safety procedures, and OEM recommendations.
and early signs of failure.
incorrect labeling.
severity criteria.
matrix.
and enclosure condition.
components for cleanliness and integrity.
response.
installations.
and flow transmitters, and gas or chemical sensors.
requirements, and LOTO procedures.
completion.
lessons-learned documentation.
in a semiconductor, manufacturing, or industrial facility, to apply.
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.
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 Master Chiller Mechanic is responsible for the operation, maintenance, troubleshooting, repair, and optimization of critical chilled water and refrigeration systems supporting semiconductor manufacturing operations. This role ensures reliable and efficient performance of large-scale industrial chillers, cooling infrastructure, and associated mechanical systems in a mission-critical environment. The ideal candidate will possess advanced knowledge of industrial HVAC, refrigeration, chilled water, condenser water, and process cooling systems, with strong troubleshooting capabilities across mechanical, electrical, refrigeration, and controls disciplines. RESPONSIBILITIES: Operations & System Monitoring * Operate and monitor centrifugal, screw, scroll, and reciprocating chillers supporting semiconductor facility operations. * Monitor chilled water, condenser water, glycol, and heat recovery systems to ensure stable and efficient operation. * Review system pressures, temperatures, flows, approach temperatures, and equipment efficiencies. * Monitor SCADA/BMS trends, alarms, and system performance to identify abnormal operating conditions. * Adjust operating parameters to maintain design conditions and optimize energy efficiency. * Coordinate chiller staging, sequencing, and load balancing strategies across plant systems. * Support seasonal startup and shutdown activities for chillers and associated utility systems. Preventive Maintenance * Execute OEM and site-specific preventive maintenance procedures for chillers and auxiliary equipment. * Perform lubrication inspections and review oil analysis reports to support equipment reliability. * Inspect, maintain, and troubleshoot: * Compressors * Condensers * Evaporators * Cooling towers * Pumps * VFDs * Valves and actuators * Heat exchangers * Expansion devices * Conduct tube inspections and coordinate condenser/evaporator tube cleaning activities. * Replace filters, strainers, gaskets, seals, bearings, and other consumable components. * Verify proper refrigerant charge and oil levels. * Perform vibration analysis and alignment inspections on rotating equipment. Corrective Maintenance & Troubleshooting * Diagnose and resolve mechanical, electrical, refrigeration, and controls-related equipment failures. * Troubleshoot issues including: * High condenser pressure * Low evaporator pressure * Surge conditions * Oil system faults * Refrigerant leaks * Flow issues * Compressor trips * Sensor and instrumentation failures * Perform emergency repairs and equipment restoration activities to minimize operational downtime. * Coordinate outage planning, lockout/tagout (LOTO), and system isolation activities. * Support root cause analysis (RCA) investigations and implementation of corrective actions. Refrigeration System Responsibilities * Handle refrigerants in compliance with EPA regulations and environmental requirements. * Recover, evacuate, recharge, and leak-test refrigeration systems. * Maintain refrigerant logs and environmental compliance documentation. * Inspect purge systems and monitor non-condensable gas levels. * Conduct refrigerant leak detection surveys and implement corrective actions. Controls & Instrumentation Support * Verify operation of temperature, pressure, and flow instrumentation associated with chiller systems. * Support calibration activities for sensors, transmitters, and instrumentation devices. * Assist controls technicians with BAS/PLC integration troubleshooting and system diagnostics. * Validate alarm functionality, safety devices, interlocks, and sequence-of-operations performance. * Support controls verification and operational testing activities. Reliability & Optimization * Analyze operational data and performance trends to identify degradation and reliability concerns. * Support energy optimization and efficiency improvement initiatives for chilled water and process cooling systems. * Monitor KPIs including: * kW/ton * Chiller efficiency * MTBF * Runtime distribution * PM compliance * Recommend reliability improvements, operational enhancements, and system upgrades. * Support predictive maintenance strategies including vibration analysis and thermography. Safety & Compliance * Follow all EHS procedures, LOTO requirements, and semiconductor facility safe work practices. * Conduct Job Hazard Analysis (JHA) and pre-task planning activities prior to maintenance execution. * Ensure compliance with OSHA, EPA, and site-specific environmental and safety regulations. * Support emergency response activities and incident investigations. * Maintain safe handling practices for refrigerants, chemicals, and pressurized systems. Documentation & Reporting * Document preventive maintenance, corrective maintenance, inspections, and operational activities within CMMS platforms such as IBM Maximo Application Suite. * Maintain accurate maintenance histories, operational logs, and equipment records. * Generate work orders, deficiency reports, and operational documentation. * Review and update SOPs, MOPs, and maintenance procedures as required. * Support turnover documentation and maintenance reporting activities. * Any other duties or responsibilities that may be assigned to you in your role. SKILLS REQUIRED: * 8+ years of experience operating and maintaining industrial chillers, refrigeration, or mission-critical cooling systems. * Strong troubleshooting skills across mechanical, electrical, refrigeration, and controls systems. * Experience working in semiconductor, mission-critical, industrial, or high-tech manufacturing facilities preferred. * Ability to read and interpret mechanical drawings, P&IDs, equipment manuals, and control sequences. * Strong understanding of chilled water systems, refrigeration cycles, and HVAC operations. EDUCATION / LICENSES / CERTIFICATIONS: * Bachelor's degree in Mechanical Engineering or trade certificate is nice to have, but not required. * High School Diploma is 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 #LI-DNP 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.
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 FFO Mechanical Operations & Maintenance Technician plays a key role in maintaining the reliability, performance, and safety of facility mechanical systems that directly support semiconductor manufacturing operations. This role performs preventive and corrective maintenance, supports operational uptime, identifies performance improvements, and partners with system owners and engineers to ensure equipment readiness in a mission-critical environment. RESPONSIBILITIES: Preventive & Corrective Maintenance * Execute scheduled preventive maintenance activities as assigned by the Maintenance Planner/Scheduler (MPS) to ensure optimal reliability and performance of facility mechanical systems. * Perform corrective maintenance and troubleshooting on mechanical equipment supporting critical production environments. * Interpret mechanical/electrical drawings, piping schematics, blueprints, and OEM documentation when diagnosing issues. System Operations & Performance * Monitor system conditions and equipment performance using SCADA, controls interfaces, trend logs, and on-equipment instrumentation. * Adjust, balance, and optimize system performance to maintain environmental stability and energy efficiency. * Escalate system abnormalities promptly and document findings, work completed, and recommended actions. Facility Mechanical Systems Work with a wide range of semiconductor facility mechanical systems, including: * Air Handling Units (AHUs), Fan Filter Units (FFUs), Fan Coil Units * Exhaust systems and specialty gas/chemical scrubbers * Chillers (low temp & high temp), boilers, and heat exchangers * Cooling towers and associated water treatment equipment * Process and distribution water systems (chilled water, heating water, cooling water loops) * Compressed air systems (compressors, dryers, filters) * Mechanical distribution systems, pumps, valves, piping, VFDs, and hydronic systems Operational Efficiency & Project Work * Work closely with system owners, engineers, and cross-functional teams to support operational improvement initiatives and efficiency upgrades. * Participate in the development, planning, and execution of system upgrade projects, equipment replacements, and reliability enhancements. Compliance, Documentation & Site Audits * Maintain accurate maintenance logs, documentation, and system status entries in the designated CMMS (e.g., Maximo). * Perform site and equipment audits to ensure alignment with safety requirements, operational procedures, and facility standards. * Follow LOTO, confined space entry, PPE, and semiconductor facility EHS policies at all times. * Any other duties or responsibilities that may be assigned to you in your role. SKILLS REQUIRED: * 2–4 years of hands-on mechanical maintenance experience in facilities, industrial, utilities, manufacturing, or similar environment, is required. * Technical experience with mechanical utilities such as HVAC, chilled water, heating water, compressed air, hydronics, and rotating equipment. * Ability to read and interpret mechanical drawings, schematics, and equipment manuals. * Strong troubleshooting, documentation, and communication skills. * Working knowledge of safety procedures including lockout/tagout (LOTO), hazard recognition, and PPE usage. EDUCATION / LICENSES / CERTIFICATIONS * High School Diploma or equivalent, required. * Associate's, Bachelor's degree or technical diploma in Engineering, Mechanical, Electrical, or related field preferred, but not required. * Relevant technical certifications (HVAC) are an advantage. * 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-DNP 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.
WHO WE ARE Founded in 2019, Marvel Fusion is Europe’s leading fusion energy company, uniting 75 scientists, engineers, and entrepreneurs across our locations in Munich and Colorado. Backed by over €385 million in public and private funding, we’re driven by a shared mission: to deliver clean, abundant energy to the world. WHY MARVEL FUSION By joining us, you will be: * Solving one of the most complex technological challenges known to humanity, harnessing Fusion on Earth * Part of a highly purpose-driven team working on providing the world with clean, safe and abundant energy * Working alongside world-leading scientists and entrepreneurs in the field of Fusion * Part of a start-up where growth on a company and individual level is the default As a Software Engineer you will develop the software backbone of our laser facility. You will work at the intersection of complex, time-critical hardware and modern software technologies, building robust applications, services and tooling for automated development, testing and deployment. You will collaborate closely with engineers and scientists who develop and operate high power laser systems. Your work will be critical to achieving stable, repeatable and safe laser operation on the path to commercial fusion energy. YOUR RESPONSIBILITIES * Design, develop and maintain software applications and services for laser facility operation, data handling and automation * Build and support CI/CD pipelines, testing frameworks and deployment tooling * Elicit and manage technical requirements together with engineers and scientists * Collaborate on, and continuously improve, the architecture and technology stack * Define and document functional specifications, test plans and acceptance criteria WHAT YOU BRING * Bachelor's or Master's degree in Computer Science, IT or a related Engineering field * 3+ years of hands-on industry experience in software development (backend, systems or application development) * Strong programming skills in languages like C++, Python, Java, C#, Kotlin, Rust or similar * Solid grasp of modern software development practices, processes and tools (CI/CD, Git, automated testing, etc.) * Experience working in a software development team following established practices and processes * Fluent English; German proficiency is welcome * Flexibility, adaptability and a hands-on, can-do attitude WHAT SETS YOU APART * Experience with development of distributed systems * Experience interfacing software with hardware (PLCs, embedded systems, instrumentation) * Experience with EPICS (epics-controls.org) or other control system frameworks * Experience working with scientific facilities like laser laboratories, accelerators, etc. * Understanding of real-time concepts and industrial interfaces such as EtherCAT, Modbus-TCP, and serial protocols WHAT WE OFFER Our mission is motivation enough for many. But we also support our team with benefits that foster wellbeing and growth: * Public transport reimbursement * EGYM Wellpass fitness club access * Complimentary health insurance * Professional development support * Healthy office snacks For more information on how we process your application data, please review our privacy notice.