
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 an experienced EHS Site Specialist to provide dedicated, embedded health and safety support to our growing
Operations & Maintenance (O&M) teams at semiconductor manufacturing campuses across the United States. This is a hands-on,
field-forward role designed to integrate directly into day-to-day O&M operations, ensuring LotusWorks personnel work safely,
compliantly, and in alignment with both LotusWorks EHS standards and site requirements.
The EHS Site Specialist will report directly to the LotusWorks O&M Manager and maintain a functional alignment with the LotusWorks
EHS Manager. This dual reporting structure ensures operational agility while preserving program consistency, document control, and
regulatory compliance across all sites.
Pre-Task & Permit Management
commencement
standards
work
On-Site EHS Presence & Field Oversight
equipment work
re-authorization
PPE & Equipment Inspections
protection, and task-specific PPE
Monthly Site Visits
closure
Incident Reporting & Investigation
Training & Compliance
hot work, etc.)
Documentation & Reporting
strongly preferred
environments
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.
Job Description Title: EHS Specialist II FLSA Status: OH Department: EHS Job Class: Reports To: EHS Manager Full / Part Time Full Time Location: Masterack HQ - Social Circle, GA Effective Date: Position Summary: This position will work with the EHS Manager and Leadership team at the Reading Truck/Masterack manufacturing plant to aid in the development and implementation of policies, documents and tasks associated with OSHA, EPA and Industrial Hygiene practices or regulations. This position will interface with managers as well as team members on the production floor to ensure that all company policies are followed, provide interpretation on EHS regulations, and conduct regulatory sampling. This position will take ownership of some compliance related tasks and programs as they relate to OSHA and EPA. Position Responsibilities: * Assist in the investigation process for accidents and injuries including the identification of root cause and necessary corrective action to prevent reoccurrence; and assist departments in documentation and develop PDCA’s. * Maintain compliance database including entering compliance required information into database as well as completing compliance related EHS tasks; (Including TRIR tracking, DART, and trending injury data) * Assist with analyzing and summarizing key metrics to support reporting about EHS performance, including developing presentations to present findings * Develop Draft Safety procedures, policies, and training as necessary that are OSHA compliant * Participate in Safety audits and assessments to identify safety deficiencies such as LOTO, Machine Guarding, Hot Work and Electrical Safety; as well as other OSHA regulations * Assist with the preparation and/or distribution of EHS related communications and/or postings * Collaborate with team members to understand problems, issues, and obtain suggested alternatives * Assist to schedule 3rd party vendors and contractors for on-site training and assist with providing training * Conduct PPE assessments and JHA’s; evaluate current equipment and make modifications to PPE program to ensure compliance and upgrades are current with latest technology * Participate in the development of training materials, conduct training when applicable, and maintain the training database for tracking compliance and participation * Oversee the development and continuous improvement of New Hire safety orientation * Participate in and guide the monthly Safety Committee team members; providing leadership to ensure the committee has direction and demonstrated efficiency * Coordinate files for review by regulators for compliance and auditors for inspections * Support EHS Manager with files and recordkeeping on daily, weekly, and monthly basis * Assist in compliance assurance with all federal, state, and local environmental requirements * Inspect equipment and machine guarding for OSHA compliance, making recommendations as needed * Perform air permit, stormwater, wastewater and waste inspections with ability to identify gaps, make adjustments to the programs and maintain documentation for compliance * Manage hazardous waste labeling, shipments and manifests. Financial Responsibility: * No cost center responsibility; no profit & loss responsibility Position Qualifications & Requirements: Education: * Required - Bachelor Degree in EHS-related field such as Industrial Safety, Environmental Science, Chemistry, Environmental Engineering Experience: * Three (3) to five (5) years’ previous manufacturing or industrial experience Certification /License: * Willing to work towards or in progress towards ASP or CSP, or CIH, or HMM. Skills and Abilities: * Must have working and fundamental knowledge of OSHA standards, EPA waste regulations * Must have completed RCRA and DOT training within the past year or willingness to complete the training post-hire * Familiar with 5S and basic Lean Manufacturing programs * Experience with MS Office required; proficiency in Excel * Demonstrated skills in database management and comfortable working on a computer * Effective oral and written communication; confident in interactions across all facets of a production workforce. * Strong organizational skills, with attention to detail * Must be driven, results-oriented, and able to self-start and self -motivate * Must be able to work independently, but also lead a team to complete a goal or task Supervisory responsibilities: * None Work environment: * Manufacturing and Office environment * Some Sedentary work in office with a focus on presence in and around the production floor. * Must be able to wear required Personal Protective equipment (PPE) Travel: * None J.B. Poindexter & Co., Inc. provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training. #LI-ER1