EFRAIN VALLE
Chino
Summary
Motivated professional with extensive experience in industrial automation and control systems. Proven expertise in PLC programming, HMI/VFD configuration, and conducting electrical protection tests, resulting in enhanced system reliability and minimized downtime. Committed to advancing electrical technology knowledge and implementing innovative solutions for organizational growth.
Overview
6
6
years of professional experience
1
1
Certification
Work History
Test Technician
Roberson-Waite Electric
03.2026 - Current
- Executed electrical testing on substation equipment, including protective relays, transformers, and breakers.
- Conducted relay testing with Doble test equipment to validate protection schemes and trip functions.
- Verified CT polarity and wiring through test paddles and injection methods.
- Performed insulation resistance testing to identify grounds and prevent double-ground conditions.
- Analyzed phase angles, vector relationships, and system behavior under test conditions.
- Assisted in commissioning and troubleshooting of electrical protection systems.
- Interpreted electrical drawings and schematics for precise test setup and validation.
Automation Engineer
Amazon
02.2024 - 03.2026
- Programmed and modified PLC logic, enhancing system performance significantly.
- Configured VFDs, HMIs, and control devices for reliable operation across all systems.
- Maintained and troubleshot automated conveyor and control systems to ensure optimal functionality.
- Reduced downtime through rapid diagnostics and effective repair strategies.
- Collaborated with cross-functional teams to implement system improvements and enhancements.
Automation Technician
Jabil
10.2022 - 01.2024
- Commissioned PLC-controlled systems and robotics
- Executed system upgrades, enhancing automation efficiency and performance
- Troubleshot equipment and reduced production downtime
- Build and test precision machines, solving mechanical and electrical challenges effectively.
- Trained operators on new machinery for seamless integration and proficiency
- Collaborated with design engineers to develop manuals and reports, improving machine functionality and user experience
Industrial Electrician
Diamond Bar Electric
12.2019 - 09.2022
- Installed and maintained electrical systems up to 480VAC, ensuring operational reliability.
- Read schematics and performed wiring and terminations to enhance system performance.
- Supported various industrial and commercial electrical projects, facilitating timely completion.
- Installed conduits and structures to improve safety and comply with industry standards.
Education
Bachelor of Science - Electrical Engineering (Power Generation)
Arizona State University
Tempe, AZ05-2028
Associate of Science - Electrical Technology
San Joaquin Valley College
01-2020
Skills
- Electrical testing
- PLC programming and control systems
- HMI/VFD programming
- Control systems design
- Industrial automation
- Equipment maintenance
- Process improvement
- Project management
Languages
English
Native/ Bilingual
Spanish
Native/ Bilingual
Certification
- OSHA 30
- American Heart Association - CPR certified
- Rockwell Automation - Control Systems Integrator
Timeline
Test Technician
Roberson-Waite Electric
03.2026 - Current
Automation Engineer
Amazon
02.2024 - 03.2026
Automation Technician
Jabil
10.2022 - 01.2024
Industrial Electrician
Diamond Bar Electric
12.2019 - 09.2022
Bachelor of Science - Electrical Engineering (Power Generation)
Arizona State University
Associate of Science - Electrical Technology
San Joaquin Valley College