Transformer Design Engineer Jobs in Wisconsin (NOW HIRING)

About Ermco

Electric Research and Manufacturing Cooperative, Inc. (ERMCO) is the leading manufacturer of distribution transformers and engineered electrical solutions, serving electric utilities, Original Equipment Manufacturers (OEMs), and industrial customers across North America. Headquartered in Dyersburg, Tenn., ERMCO delivers reliable, high-quality products that power homes, businesses, and communities across North America.

With commitments to safety, operational excellence, and continuous improvement, ERMCO is at the forefront of supporting grid modernization and energy transition. Our vertically integrated operations, customer-focused culture, and investment in people and technology make ERMCO the Most Valued Partner for delivering resilient, sustainable power infrastructure for the future.

Job SummaryThe Electrical Engineer will have 5+ years of progressive experience within the dry type electrical distribution transformer industry. This role is responsible for the design, development, optimization, testing, and continuous improvement of medium and low voltage electrical distribution transformers and related electrical systems. The Electrical Engineer will collaborate cross-functionally with Manufacturing, Operations, Quality, Supply Chain, Sales, and Research & Development teams to ensure products meet customer specifications, regulatory requirements, operational efficiency targets, and company quality standards. The ideal candidate possesses deep technical expertise in transformer design principles, electrical systems, manufacturing processes, cost optimization, and product performance analysis. This position requires strong analytical capabilities, project leadership, problem-solving skills, and the ability to support both new product development and sustaining engineering initiatives in a fast-paced manufacturing environment.

This role will be onsite in Bristol, WI. Relocation Assistance is available.

• Design and develop electrical distribution dry type transformers.
• Perform electrical calculations and analysis related to:
• Core and coil design
• Impedance
• Loss evaluation
• Thermal performance
• Short-circuit withstand capability
• Voltage regulation
• Efficiency optimization
• Develop and review transformer drawings, schematics, bills of materials (BOMs), and engineering documentation.
• Interpret and apply customer specifications, technical standards, and regulatory requirements.
• Support new product introduction (NPI) initiatives from concept through production launch.
• Evaluate design alternatives for manufacturability, reliability, performance, and cost efficiency.
• Conduct root cause analysis and corrective actions for product failures and field issues.
• Partner closely with Manufacturing Engineering and Operations teams to improve product quality, throughput, and operational efficiency.
• Provide technical support to production teams during transformer assembly, testing, and troubleshooting activities.
• Support continuous improvement initiatives focused on safety, quality, delivery, and cost reduction.
• Review and resolve production non-conformances and engineering deviations.
• Participate in Lean Manufacturing and Six Sigma initiatives.
• Assist in implementing engineering changes and maintaining configuration control processes.
• Support electrical testing activities including:
• Routine testing
• Design validation testing
• Heat run testing
• Impulse testing
• Short-circuit testing
• Ensure compliance with applicable industry standards including:
• IEEE
• ANSI
• NEMA
• UL
• CSA
• DOE efficiency requirements
• Analyze test data and prepare technical reports and recommendations.
• Collaborate with Quality teams to investigate warranty claims and customer concerns.
• Interface with customers, suppliers, and cross-functional internal teams regarding technical requirements and product solutions.
• Provide engineering support to Sales and Commercial teams during quotation and bid review processes.
• Participate in customer meetings and technical reviews as required.
• Mentor junior engineers and engineering technicians.
• Support strategic initiatives involving product standardization, cost optimization, and innovation.
• Travel to Reynosa, MX or Celina, TN once a month.

• Bachelor’s Degree in Electrical Engineering required.
• Master’s Degree in Electrical Engineering preferred.
• 5+ years of progressive engineering experience within the dry type electrical distribution transformer industry required.
• Experience with medium voltage and low voltage transformer design strongly preferred.
• Experience with Dry-Type Transformers required.
• Experience supporting manufacturing operations in a high-volume industrial environment preferred.
• Prior experience in sustaining engineering, product development, or R&D engineering environments preferred.
• Strong understanding of:
• Electromagnetic theory
• Transformer design principles
• Electrical power systems
• Thermal dynamics
• Insulation systems
• Short-circuit analysis
• Knowledge of transformer materials including:
• Copper and aluminum windings
• Core steel
• Insulation systems
• Dielectric fluids
• Proficiency in electrical calculations and engineering analysis tools.
• Experience interpreting and applying:
• IEEE standards
• ANSI standards
• NEMA standards
• DOE efficiency regulations
• Familiarity with ERP and engineering systems.
• AutoCAD
• SolidWorks or Creo
• MATLAB
• ETAP
• ANSYS Maxwell
• SAP / Oracle / ERP systems
• Microsoft Office Suite
• Strong analytical and problem-solving capabilities.
• Excellent verbal and written communication skills.
• Ability to manage multiple projects and priorities simultaneously.
• Strong cross-functional collaboration and teamwork orientation.
• Ability to influence and drive continuous improvement initiatives.
• Customer-focused mindset with strong attention to detail.
• Demonstrated ability to mentor and develop junior engineering talent.
• High level of accountability and ownership.

Let’s Build the Future Together

At ERMCO, your ideas matter, your growth is supported, and your impact is real. Whether you’re building on early career experience or launching your professional journey, you’ll have the opportunity to learn, contribute, and grow in a manufacturing environment that values innovation and collaboration.

Join ERMCO and TRANSFORM your career!

US-WI-Bristol