Sr. Product Reliability Engineer - MV Transformers

Core Transformers • Seneca, SC

7d • Onsite

About The Position

CORE Transformers manufactures dry-type, pad mount, and substation transformers from 15 kVA to 30 MVA, up to 230 kV. We supply critical electrical infrastructure to AI-driven data centers, large-scale construction, and industrial operations nationwide. We’re tracking 3x annual revenue growth, which means more units in the field, more installers depending on our designs working the first time, and a real need for someone who owns the gap between a good design on paper and a good design in the field. You are joining as our first dedicated Sr. Product Reliability Engineer - MV Transformers. Where our R&D team builds tomorrow’s product line, you own what’s already shipped and what’s in production today: field performance, installation issues, quality escapes, and the steady stream of engineering changes that keep our standard designs current and our manufacturing partners aligned to spec. You’ll work closely with our quality team, our overseas manufacturing partners, and our sales organization to close the loop between what customers experience in the field and what actually gets built. You will report directly to the VP of Engineering, with this role positioned to grow — and to grow a team — as CORE scales.

Requirements

• Bachelor’s degree in electrical engineering, or equivalent hands-on experience in medium-voltage transformer or power systems engineering.
• 5+ years of engineering experience in power systems, medium-voltage electrical equipment, or transformer manufacturing, with real exposure to what happens after a unit ships.
• Working knowledge of liquid-filled and/or dry-type transformer design fundamentals: core and coil, winding configurations, insulation systems.
• Comfort with outside-the-tank systems: switchgear integration points, protection devices, CT configurations, and accessory hardware.
• Experience with root-cause analysis and corrective-action processes (8D, 5-Why, or similar) in a manufacturing environment.
• Ability to read and markup engineering drawings, and to write clear, field-usable documentation.
• Willingness to travel occasionally for on-site installation or field support.
• Willing and able to work on-site in Seneca, SC.

Nice To Haves

• Experience coordinating quality or engineering specs with an overseas manufacturing partner.
• Experience in data center, hyperscale, or large-scale construction power systems.
• Familiarity with UL, IEEE, IEC, or NEC standards relevant to transformers.
• A quality-engineering background (CQE or equivalent experience).
• Experience at a fast-growing or PE-backed manufacturer where the org is still being built.

Responsibilities

• Serve as the primary engineering owner for field issues, warranty claims, and quality escapes on units already in production — root cause investigation, corrective action, and closure.
• Manage the engineering change process for existing standard designs: evaluate requests from quality, manufacturing, and the field, and issue updated drawings and specifications.
• Partner with our quality team and overseas manufacturing partners to translate real field experience into tighter incoming inspection, in-process, and outgoing test criteria.
• Provide installation and field support for sales, contractors, and customers, including on-site troubleshooting when needed.
• Maintain and improve technical documentation for standard designs: drawings, spec sheets, installation guides, and accessory configurations.
• Manage product and company certifications with oversight agencies to maintain customer confidence in delivered products.
• Track field-defect trends and report them back to Quality so recurring issues get designed out of future standard designs, not just patched in the field.
• Support third-party testing and validation follow-up whenever a field issue calls a result into question.
• Help build out CORE’s quality-support function as the team grows — today this is one person; it will not stay that way.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior