Engineer Jobs in Grand Haven, MI

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1mo ago

Experienced Air-Cooled Transformer Engineer

Macro Magnetics Grand Haven, MI

Grand Haven, MI

1mo ago Closed

Full time Electrical Engineering Design Design Engineering

This position is no longer accepting applications (closed Jul 15, 2026).

Job Description

Macro Magnetics offers a collaborative, integrity-driven culture that values innovation and quality. The company serves customers with industry-leading water-cooled transformers for resistance welding, glass manufacturing, and industrial furnaces. This hybrid role in Grand Haven, Michigan, provides the chance to influence design from concept through production while enjoying a robust benefits package and opportunities for professional growth.

Benefits

401(k)
Dental insurance
Employee assistance program
Flexible schedule
Health insurance
Health savings account
Life insurance
Paid time off
Professional development assistance
Referral program
Retirement plan
Tuition reimbursement
Vision insurance

Who is Macro Magnetics?

Macro Magnetics is founded on integrity, innovation, and quality, recognizing the contributions of its team members and customers. The company designs and manufactures water-cooled transformers for key markets, including resistance welding, glass manufacturing, and industrial furnaces.

What you will be doing

Design and engineer air cooled transformers from concept to production, addressing electrical, thermal, mechanical, and insulation-system factors.
Develop designs that meet customer specifications, performance targets, cost goals, safety standards, and manufacturability needs.
Perform electrical design calculations for voltage, current, turns ratio, impedance, losses, efficiency, regulation, temperature rise, short-circuit withstand, and duty-cycle performance.
Select core materials, conductor types, insulation systems, winding configurations, cooling methods, termination arrangements, and mechanical support structures.
Prepare and review engineering drawings, bills of materials, design documentation, test requirements, and production support materials.
Provide technical guidance to manufacturing teams on winding, assembly, insulation, brazing/soldering, core assembly, impregnation, and final testing.
Troubleshoot transformer performance issues such as overheating, noise, vibration, insulation failures, loss deviations, dielectric failures, and customer application concerns.
Participate in design reviews, root-cause analysis, corrective actions, and continuous improvement initiatives.
Collaborate with sales, applications engineering, quality, purchasing, production, and customers to ensure designs are technically sound and commercially practical.
Review customer specifications and advise on feasibility, risks, exceptions, alternate designs, and compliance requirements.
Support transformer testing, including routine, type, thermal, dielectric, impedance, no-load loss, load loss, and any special customer-required testing.
Maintain knowledge of applicable standards such as IEEE, ANSI, UL, CSA, NEMA, IEC, and related transformer and electrical safety standards.

Requirements

Bachelor’s degree in Engineering or a closely related technical discipline; equivalent practical transformer design experience may be considered.
Minimum 7 to 10 years of experience designing, developing, or supporting air-cooled, dry-type, or custom transformers.
Strong understanding of transformer electromagnetic design principles, including core flux density, winding current density, impedance, losses, regulation, and thermal performance.
Experience with copper and aluminum windings, insulation systems, laminated cores, bus connections, terminals, cooling ducts, and mechanical clamping structures.
Familiarity with transformer manufacturing processes and shop-floor constraints.
Ability to interpret customer specifications, electrical schematics, mechanical drawings, test data, and applicable standards.
Experience supporting production, quality, and field troubleshooting activities.
Proficiency with engineering calculations, design tools, spreadsheets, CAD/ERP systems, and technical documentation.
Strong analytical, problem-solving, and communication skills.
Ability to manage multiple custom engineering projects simultaneously.
Experience with high-current, low-voltage transformers, resistance welding transformers, furnace transformers, rectifier transformers, isolation transformers, control transformers, or specialty industrial transformers.
Experience designing transformers for harsh-duty, intermittent-duty, high-temperature, or high-current applications.
Knowledge of UL, CSA, IEEE, ANSI, NEMA, or IEC requirements for dry-type transformers.
Experience with thermal modeling, finite element analysis, magnetic modeling, or transformer design software.
Experience with vacuum pressure impregnation, varnish systems, encapsulation, or advanced insulation materials.
Hands-on experience with prototype builds, production launches, and customer application reviews.
Familiarity with lean manufacturing, design for manufacturability, and cost-reduction initiatives.

Technologies

CAD/ERP systems

Location

Hybrid remote in Grand Haven, MI 49417

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