Maintenance Technician IIICompany: TriMas Company LLC
Primary Location: 1451 N Johnson Ave, El Cajon, CA 92020 USA
Workplace Type: On-site
Employment Type: Hourly | Full-Time
Function: Manufacturing Production / Distribution
Main Duties & ResponsibilitiesPosition SummaryThe MaintenanceTechnician III is a fully qualified industrial maintenance technician whoindependently diagnoses, repairs, and maintains production equipment in variousareas, such as, sheet metal, welding, forming, and machining operations. Theposition handles routine through moderately complex mechanical and electricalfailures, completes preventive maintenance, supports equipment reliability, anddocuments work in the computerized maintenance management system. Thetechnician works within the direction of the Maintenance Lead and MaintenanceManager, assists the apprentice as appropriate, and escalates advancedcontrols, CNC, spindle, servo, and major equipment failures when specializedsupport is required.
Essential Duties and Responsibilities- Troubleshoot, repair, install, adjust, and maintain CNC machining centers and lathes, hydraulic forming presses, press brakes, welding and fabrication equipment, air compressors and dryers, pumps, chillers, and related auxiliary systems.
- Diagnose mechanical, electrical, hydraulic, and pneumatic failures using safe, systematic troubleshooting methods, technical manuals, schematics, drawings, machine history, and appropriate test instruments.
- Perform assigned preventive and predictive maintenance, inspections, lubrication, adjustments, component replacement, and equipment condition checks according to established schedules and procedures.
- Respond to corrective work orders and production equipment breakdowns; restore equipment safely and efficiently while communicating equipment status, repair needs, and expected next steps.
- Complete routine through moderately complex repairs independently. Assist the Lead with major repairs, precision work, advanced diagnostics, installations, shutdown projects, and OEM or contractor support.
- Enter accurate labor, failure, repair, parts, and follow-up information in the CMMS. Close assigned work orders promptly and identify recurring failures or opportunities to improve PM tasks and equipment reliability.
- Inspect repaired equipment, verify proper operation, reinstall guards and safety devices, and return equipment to service only after confirming a safe operating condition.
- Provide task-level guidance and practical support to the maintenance apprentice when assigned. This responsibility does not include formal supervisory authority.
- Maintain tools, test equipment, work areas, and spare parts in an orderly condition and support 5S and housekeeping standards.
- Coordinate professionally with production, quality, engineering, EHS, vendors, and outside service technicians to resolve equipment issues and minimize downtime.
Perform other duties as needed.
Electrical and Controls Responsibilities- Safely troubleshoot and repair 480 volt three-phase and lower-voltage industrial electrical systems, motors, motor starters, contactors, overloads, relays, control transformers, fuses, circuit protection, and control circuits.
- Diagnose VFD, sensor, proximity switch, limit switch, solenoid, interlock, and machine-control faults; read and interpret electrical schematics and wiring diagrams.
- Use multimeters, clamp meters, insulation testers, and other diagnostic instruments correctly and safely. Follow applicable electrical safe-work practices and escalation requirements.
- Perform basic PLC input and output diagnostics when qualified; PLC troubleshooting experience is preferred but is not required.
Mechanical Hydraulic and Pneumatic Responsibilities- Diagnose and repair pumps, cylinders, valves, manifolds, seals, hoses, fittings, accumulators, regulators, actuators, and related hydraulic and pneumatic components.
- Maintain and repair bearings, gearboxes, couplings, shafts, belts, chains, sprockets, mechanical drives, lubrication systems, guards, and machine assemblies.
- Perform alignment, adjustment, disassembly, replacement, reassembly, and functional testing using appropriate hand tools, power tools, precision instruments, lifting devices, and safe rigging practices.
- Basic welding and fabrication capability for equipment repairs or modifications is preferred but is not required.
CNC Equipment Support- Independently troubleshoot machine alarms, switches and sensors, coolant and lubrication systems, hydraulic and pneumatic systems, pumps, chillers, and associated electrical or control problems.
- Support safe recovery, verification, and return to service after maintenance. Escalate advanced CNC control, servo, spindle, programming, parameter, and OEM-specific issues to the Level III Lead, management, or qualified outside service.
Safety and Compliance- Follow Weldmac safety rules, EHS procedures, lockout tagout requirements, electrical safety practices, PPE requirements, machine-guarding standards, and safe lifting and rigging procedures.
- Recognize unsafe conditions, stop work when necessary, protect employees and equipment during maintenance, and promptly report hazards, incidents, and damaged safety devices.
- Handle oils, coolants, cleaners, and other maintenance materials according to labels, safety data sheets, and environmental requirements.
This role is required to be on-site 4 days at the El Cajon, CA location Tuesday-Friday.
QualificationsRequired Qualifications- 7+ years of industrial maintenance experience in a manufacturing environment, or an equivalent combination of directly relevant experience and demonstrated capability.
- Demonstrated ability to independently troubleshoot and repair industrial mechanical, electrical, hydraulic, and pneumatic systems.
- Working knowledge of CNC and production equipment support, electrical and mechanical schematics, preventive maintenance practices, and safe use of diagnostic equipment.
- Ability to organize work, communicate clearly, document maintenance activities accurately, and work effectively with limited supervision.
- Ability to read, write, and understand instructions, procedures, safety information, and technical documentation in English.
Preferred Qualifications- High school diploma or GED; education is preferred but is not required when equivalent experience and capability are demonstrated.
- Trade-school or certificate training in industrial maintenance, electrical, mechanical, mechatronics, machining, or a related field.
- PLC diagnostic experience; basic welding or fabrication skills; aerospace manufacturing experience; and general facilities maintenance knowledge.
Physical and Work Environment RequirementsThe employee must be able to lift and carry up to 50 pounds;stand and walk for extended periods; bend, kneel, crouch, crawl, climb ladders,and work at elevated locations; use hand and power tools; and access machineryfor inspection and repair. Work is performed around operating machinery,electrical systems, hydraulic pressure, noise, vibration, oils, coolants,welding operations, sharp edges, and other conditions typical of an aerospacemanufacturing plant. Required PPE must be worn.
CompensationIn compliance with all states and cities requiring transparency of pay, the expected pay range for this position is $35-46.
Compensation can vary depending on several factors, including a candidate's qualifications, skills, experience, competencies, and geographic location. Some roles may qualify for extra incentives like equity, commissions, or other variable performance-related bonuses. Further details will be provided by our recruiting team during the interview process.
This position requires access to information, or technology, which is subject to the International Traffic in Arms Regulations (ITAR). All applicants must be U.S. persons within the meaning of ITAR. ITAR defines a U.S. person as a (i) citizen or national of the United States; or (ii) a lawful permanent resident of the United States (i.e. "Green Card Holder"); or (iii) a person admitted to the United States as a refugee, or granted asylum, as specified under applicable law.
BenefitsBenefit offerings include Medical Insurance and Prescription Drugs, Dental Insurance, Vision Insurance, Flexible Spending Accounts, Life Insurance, Short-Term Disability, Long-Term Disability Insurance (for eligible employees), Employee Assistance Plan (EAP), Paid Time Off (may include vacation and sick time), Retirement Program, and Other Voluntary Benefits.
