Job Details

Sanmina Corporation (Nasdaq: SANM) is a leading integrated manufacturing solutions provider serving the fastest growing segments of the global Electronics Manufacturing Services (EMS) market. Recognized as a technology leader, Sanmina Corporation provides end-to-end manufacturing solutions, delivering superior quality and support to Original Equipment Manufacturers (OEMs) primarily in the communications networks, defense and aerospace, industrial and semiconductor systems, medical, multimedia, computing and storage, automotive and clean technology sectors. Sanmina Corporation has facilities strategically located in key regions throughout the world.

Core Stacking Technician

Position Summary

The Core Stacking Technician is responsible for assembling transformer core structures using precision-cut laminations in accordance with engineering drawings and build specifications. This role requires a high level of attention to detail and consistency to ensure proper alignment, sequencing, and overall assembly quality. This position is intended for experienced manufacturing personnel capable of performing precision assembly work, maintaining quality standards, and supporting process improvements during initial facility ramp-up.

Core Assembly & Stacking

• Assemble transformer core components (yokes and legs) using pre-cut laminations.

• Follow work instructions and technical drawings to ensure proper sequencing and alignment.

• Maintain stack integrity, alignment, and dimensional accuracy throughout assembly.

• Prepare core assemblies for downstream operations.

Quality Control & Inspection

• Inspect laminations prior to assembly for damage, coating condition, or non-conformance.

• Verify alignment, sequencing, and dimensional accuracy of assembled core components.

• Identify defects such as gaps, misalignment, or damaged materials and take corrective action.

• Ensure conformance to engineering specifications and work instructions.

• Accurately log production data, material traceability, and quality yields into the ERP or production tracking system.

Material Handling

• Safely transport laminations and core components using overhead cranes and lifting equipment.

• Stage materials for efficient assembly while maintaining organization and traceability.

Tools & Equipment

• Use hand tools, fixtures, and assembly aids required for core stacking and alignment.

• Perform basic inspection and care of tools and equipment.

Production Support

• Maintain consistent assembly quality and minimize rework.

• Assist in resolving assembly issues and support continuous improvement efforts.

Required Qualifications

• High School Diploma or GED required.

• 3+ years of experience in a manufacturing or assembly environment.

• Experience in mechanical or precision assembly work.

• Ability to read and interpret technical drawings and work instructions.

• Basic use of measurement tools such as calipers and gauges.

• Strong attention to detail and manual dexterity.

• Ability to identify assembly or quality issues and take corrective action.

Safety & Certifications

• Experience with overhead cranes or lifting equipment preferred

• Ability to follow all workplace safety requirements.

Preferred Qualifications

• Associate degree (AAS) in Electrical Technology, Mechanical Technology, Mechatronics, or related field strongly preferred.

• Experience in transformer manufacturing, electrical equipment assembly, or similar industries.

• Experience working with precision assemblies requiring tight tolerances.

• Demonstrated ability to troubleshoot assembly or build issues.

• Experience supporting process improvements or training other Technicians.

Additional Requirements

• Ability and willingness to travel Internationally for training, equipment commissioning, or support activities, including extended travel during initial facility ramp-up.

• Must be legally authorized to work in the United States.

• Ability to meet the physical requirements of the role as outlined below.

Physical Requirements

• Ability to stand for extended periods during the work shift.

• Ability to lift, carry, and move materials weighing up to 50 lbs, with or without assistance.

• Ability to perform repetitive tasks involving hand and arm motion.

• Ability to bend, reach, and work in a manufacturing environment around moving equipment.

• Ability to safely work in an industrial environment using required personal protective equipment (PPE).

Work Environment

• Industrial manufacturing environment.

• Exposure to heavy materials and moving equipment.

• Requires standing, lifting, and repetitive precision assembly tasks.

This position deals with ITAR facilities and applicants must be a US Citizen or a lawful permanent resident. 

Sanmina is an Equal Opportunity Employer – M/F/Veteran/Disability/Sexual Orientation/Gender Identity.