Maintenance & Engineering Supervisor

Nong Shim•Rancho Cucamonga, CA

48d•$70,000 - $80,000

About The Position

Supervise day-to-day facility operations for HVAC, boilers, compressed air, utilities (gas, water, electric), wastewater, fire, and elevator systems Plan, assign, and verify preventive maintenance (PM) and work orders Perform and oversee basic welding and fabrication (MIG/TIG or stick) for brackets, piping, and minor structural work Troubleshoot electrical systems, including 3-phase motors, VFDs, control panels, and sensors; coordinate with licensed electricians for complex repairs Manage boiler and compressor operations including service records, inspections, emissions, and greenhouse gas reports Oversee wastewater monitoring, sludge hauling, and required sampling; maintain and submit test results to IEUA Ensure fire/life-safety systems (sprinklers, alarms, pre-action, and fire pumps) are inspected and compliant with local/state codes Manage elevator inspections and maintenance for passenger and freight units Serve as primary contact for environmental and regulatory agencies (AQMD, IEUA, City of Rancho Cucamonga); prepare and file required reports Supervise outside contractors, verify completion of work, and ensure adherence to safety and quality standards Source parts, request quotes, issue purchase orders, and process invoices with Accounting Manage vendors for boilers, generators, electrical, and pipe repair Support Engineering Manager in department operations and share technical/mechanical expertise with operators Maintain clean and safe work environments, proper chemical storage, and adherence to LOTO/NFPA 70E practices

Requirements

Authorized to work lawfully in the United States
3+ years of experience in industrial facilities, plant engineering, or utilities maintenance (supervisory experience preferred)
Proficiency in welding (MIG/TIG/stick) and basic electrical troubleshooting
Strong knowledge of boilers, compressed air, HVAC, and wastewater systems
Proficient in Microsoft Office (Outlook, Word, Excel); experience with CMMS/ERP systems a plus
Excellent communication and organizational skills
Fluent in English

Nice To Haves

Bachelor’s degree in Engineering or equivalent technical experience (preferred)
Fluent in Spanish or Korean is a plus

Responsibilities

Supervise day-to-day facility operations for HVAC, boilers, compressed air, utilities (gas, water, electric), wastewater, fire, and elevator systems
Plan, assign, and verify preventive maintenance (PM) and work orders
Perform and oversee basic welding and fabrication (MIG/TIG or stick) for brackets, piping, and minor structural work
Troubleshoot electrical systems, including 3-phase motors, VFDs, control panels, and sensors; coordinate with licensed electricians for complex repairs
Manage boiler and compressor operations including service records, inspections, emissions, and greenhouse gas reports
Oversee wastewater monitoring, sludge hauling, and required sampling; maintain and submit test results to IEUA
Ensure fire/life-safety systems (sprinklers, alarms, pre-action, and fire pumps) are inspected and compliant with local/state codes
Manage elevator inspections and maintenance for passenger and freight units
Serve as primary contact for environmental and regulatory agencies (AQMD, IEUA, City of Rancho Cucamonga); prepare and file required reports
Supervise outside contractors, verify completion of work, and ensure adherence to safety and quality standards
Source parts, request quotes, issue purchase orders, and process invoices with Accounting
Manage vendors for boilers, generators, electrical, and pipe repair
Support Engineering Manager in department operations and share technical/mechanical expertise with operators
Maintain clean and safe work environments, proper chemical storage, and adherence to LOTO/NFPA 70E practices

Benefits

100% coverage for Medical, Dental, Vision, and Life Insurance (Fully paid by company)
401K Matching up to 4%
Cellphone Allowances
Mileage reimbursement
Employee Discounts
Paid Vacation
Paid Sick Days
10 Paid Holidays
Paid Bereavement Leave
Employee development program
On-Job Training Program
Career-Path
Lunch Catering for employees
Various Team building programs
Health Wellness