Amanda Monreal
Placentia
Summary
Instrumentation & Electrical Technician with refinery and heavy industrial experience supporting electrical and process control systems ranging from 12VDC to 4,160VAC. Strong background in instrumentation troubleshooting, loop checks, motor controls, VFD systems, and PLC-based automation. Experienced in maintaining critical process equipment in high-compliance environments with a strong focus on safety, reliability, and mechanical integrity.
Overview
7
7
years of professional experience
1
1
Certification
Work History
Electrical & Instrumentation
MARATHON PETROLEUM COMPANY LLC
Long Beach, CA
07.2024 - 2026
• Maintain and troubleshoot refinery instrumentation and electrical distribution systems.
• Perform loop checks and troubleshooting of 4–20mA control circuits.
• Support pressure, temperature, flow, and level instrumentation.
• Execute preventive and corrective maintenance under Mechanical Integrity programs.
• Troubleshoot AC/DC systems from 12VDC to 4,160VAC.
• Maintain and repair motor control circuits, MCC equipment, breakers, and contactors.
• Interpret electrical one-line diagrams, schematics, and P&IDs.
• Execute Lockout/Tagout procedures and refinery permitting systems.
Electrical Mechanic
International Paper
Compton, CA
04.2022 - 07.2024
• Performed electrical diagnostics and repairs on industrial production equipment.
• Troubleshot VFD systems and motor controls (12VDC–480VAC).
• Supported instrumentation wiring and control troubleshooting.
• Maintained conveyors, hydraulic, and pneumatic systems.
• Conducted preventive maintenance to improve reliability and reduce downtime.
Lead Electrician
National Gypsum
Long Beach, CA
07.2017 - 04.2022
• Led troubleshooting and installation of high- and low-voltage motors.
• Installed and serviced VFD systems and motor starters.
• Performed PLC troubleshooting and rack installations.
• Supported control panel modifications and field wiring.
• Maintained conveyor systems and rotating equipment.
• Performed MIG and ARC welding for equipment repairs.
Education
Automotive Technology Certification - Automotive Engineering
Cypress College
Cypress, CASkills
- Friendly, positive attitude
- Teamwork and collaboration
- Customer service
- Problem-solving
Certification
• OSHA 30
• HAZWOPER
• TWIC Card Holder
• Boom Lift & Forklift Certified
• CPR Certified
• Boating License
Timeline
Electrical & Instrumentation
MARATHON PETROLEUM COMPANY LLC
07.2024 - 2026
Electrical Mechanic
International Paper
04.2022 - 07.2024
Lead Electrician
National Gypsum
07.2017 - 04.2022
Automotive Technology Certification - Automotive Engineering
Cypress College