[Skip to main content](#main-content) [ OpenNash ](https://opennash.com/) / [Jobs](https://jobs.opennash.com/) [ 01 Search jobs](https://jobs.opennash.com/search/)[ 02 Companies](https://jobs.opennash.com/explore/)[ 03 Hiring report](https://jobs.opennash.com/reports/hiring/)[ 04 AI assistants](https://jobs.opennash.com/connect/)[ 05 How it works](https://jobs.opennash.com/methodology/) Sanmina-SCI · Houston, TX # Lead Core Stacking Technician Houston, Texas, United States Manager or lead Skilled Trades & Maintenance Listed on Sanmina-SCI’s official careers site. Posted October 8, 2026. Check that it is still open and apply there. [Apply on Sanmina-SCI’s careers site →](https://jobs.sanmina.com/jobs/18327652-lead-core-stacking-technician) [OpenNash Jobs](https://jobs.opennash.com/) / [Sanmina-SCI](https://jobs.opennash.com/companies/sanmina-sci/) / Lead Core Stacking Technician ## Job description Description Sanmina Corporation ( Nasdaq: SANM) is a global powerhouse in integrated manufacturing solutions serving the fastest growing segments of the global Electronics Manufacturing Services (EMS) market. We are a global engine providing the end-to-end manufacturing backbone for the world's most essential and innovative brands. Whether it's autonomous vehicles, life-saving medical tech, next-gen aerospace, or AI/cloud infrastructure - our integrated solutions don’t just meet standards—they redefine them. ### What You'll Do The Lead Core Stacking Technician is a senior operational role responsible for overseeing and performing the advanced assembly of transformer core structures using precision-cut laminations in accordance with engineering drawings and build specifications. This role requires expert-level attention to detail, a deep understanding of alignment and sequencing, and the ability to mentor junior technicians. The Lead will ensure core assemblies are built accurately and consistently, and will serve as the primary resource for troubleshooting and continuous process improvement during the initial facility ramp-up and ongoing production. Lead daily shift operations for the core stacking area, ensuring production schedules and quality targets are met. Mentor and train Core Stacking Technicians on proper assembly, quality inspection, and safety procedures. Serve as the primary subject matter expert for complex core stacking configurations and assembly optimization. Direct and execute complex assembly of transformer core components (yokes and legs) using pre-cut laminations. Execute assembly procedures to ensure proper sequencing and alignment per work instructions and technical drawings. Proactively monitor and analyze stacking performance, implementing immediate and long-term adjustments to maintain consistent and superior stack integrity, alignment, and dimensional accuracy. Perform comprehensive, final assessments of laminations prior to assembly for damage, coating condition, or non-conformance. Lead the inspection process, auditing the verification of alignment, sequencing, and dimensional accuracy of assembled core components performed by the team. Ensure rigorous conformance to all engineering specifications and work instructions, serving as the final point of escalation for quality issues. Accurately log and oversee the logging of production data, material traceability, and quality yields into the ERP or production tracking system. Safely direct the handling and transport of laminations and core components using overhead cranes and lifting equipment. Oversee the staging of materials for efficient assembly while maintaining organization and traceability. Develop and perform complex preventive maintenance (PM) and routine equipment checks on tools, fixtures, and assembly aids beyond basic requirements. Lead troubleshooting efforts for major assembly or process issues to quickly restore stable operation and minimize rework. Drive continuous improvement initiatives and support equipment commissioning processes. Maintain a clean and organized work area in accordance with company standards. ### What You'll Bring High School Diploma or GED required. 5+ years of experience preferred in a precision manufac turing or assembly environment 2+ years of experience in a lead, senior, or mentoring role within a manufacturing setting, or demonstrated ability to train other Technicians and support process improvements. Demonstrated expert ability to read and interpret complex technical drawings and work instructions. Advanced proficiency with precision measurement tools (calipers, gauges, etc.). Proven expertise in troubleshooting assembly or build issues. Strong attention to detail and manual dexterity. Must be legally authorized to work in the United States. How to Stand Out Associate degree (AAS) in Electrical Technology, Mechanical Technology, Mechatronics, or a related field strongly preferred. Direct experience in transformer manufacturing, electrical equipment assembly, or similar industries. Experience working with precision assemblies requiring tight tolerances. Experience with overhead cranes or lifting equipment. Why Join Us? ### Sanmina employees also receive benefits including Comprehensive medical and dental coverage, retirement benefits, and for formal education related to advancing your career at Sanmina, reimbursement for certain educational expenses — including tuition. Additionally, this role might be eligible for discretionary bonuses or commission payments as well as relocation. Sanmina is an Equal Opportunity Employer and prohibits discrimination and harassment. Sanmina provides equal employment opportunities to employees and applicants for employment and prohibits discrimination and harassment without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or other characteristic protected by applicable federal, state, or local laws. Please be aware that this position may require access to technology, software, or technical data that is subject to U.S. export control laws. All offers of employment are contingent on the applicant either 1) being a "U.S. Person," defined as a ( i) U.S. citizen or national, (ii) U.S. lawful permanent resident, or (iii) other protected individual, such as a refugee under 8 U.S.C. § 1157 or asylee under 8 U.S.C. § 1158; or 2) being eligible to obtain a timely export control license or license exception from the applicable U.S. federal agency. ## At a glance - Posted by the employer: Oct 8, 2026 - First seen by OpenNash: Nov 11, 2026 - Last checked: Nov 11, 2026 - Listed for: 34 days - Location: Houston, Texas, United States[Apply on Sanmina-SCI’s careers site →](https://jobs.sanmina.com/jobs/18327652-lead-core-stacking-technician) ## Hiring at Sanmina-SCI - Open jobs: 1,837 - New in the last 7 days: After two weekly collections - Tracked since: Nov 11, 2026 [All Sanmina-SCI jobs](https://jobs.opennash.com/companies/sanmina-sci/) · [Weekly hiring report](/reports/hiring/) ## More jobs at Sanmina-SCI ### [Lead Active Part Assembly Technician](https://jobs.opennash.com/companies/sanmina-sci/jobs/2b1071728494437ec038/) Houston, Texas, United States ### [Lead Core Cutting Technician](https://jobs.opennash.com/companies/sanmina-sci/jobs/2a1db2e8886f657ecd9c/) Houston, Texas, United States ### [Lead High Voltage Winding Technician](https://jobs.opennash.com/companies/sanmina-sci/jobs/f04ca3488a62a37821cc/) Houston, Texas, United States ### [Lead Low Voltage Winding Technician](https://jobs.opennash.com/companies/sanmina-sci/jobs/809fd2bafa4eda8552a5/) Houston, Texas, United States ### [Lead Transformer Drying & Filling Technician](https://jobs.opennash.com/companies/sanmina-sci/jobs/5d9aba8f95f008b30487/) Houston, Texas, United States ## Similar jobs at other companies ### [Stacking Assembler](https://jobs.opennash.com/companies/teledyne-technologies/jobs/e52b1d629b9decf1071e/) Teledyne Technologies · Rancho Cordova, US, CA ### [Core Coating Processor Sr](https://jobs.opennash.com/companies/lockheed-martin/jobs/43de032560b131027128/) Lockheed Martin · Marietta, GA ### [Agent Core Technical Product Manager](https://jobs.opennash.com/companies/jpmorganchase/jobs/593abb68fdc2b58aa5ca/) JPMorganChase · Seattle, WA, United States ### [Spectrum Core Product Manager](https://jobs.opennash.com/companies/jpmorganchase/jobs/eb0c37e853d571e011fd/) JPMorganChase · New York, NY, United States [Jobs in Houston, TX](/locations/us/tx/houston/)[Jobs in Texas](/locations/us-tx/)[Skilled Trades & Maintenance jobs](/functions/skilled-trades-maintenance/) OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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