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About the Role

The Enphase Power Systems Innovation team is seeking a temporary Mechanical Design Engineer to build and iterate on prototype systems for medium-voltage power conversion platforms, including solid-state transformers and associated enclosure and skid-level packaging. This is a hands-on prototyping, design, and execution role focused on building and iterating on prototype hardware.

Responsibilities

• Build and assemble prototype systems from engineers’ design concepts—translate sketches, 3D models, and specifications into physical hardware, delivering assembled prototype units ready for test
• Hands-on fabrication, assembly, and rework—work directly on electromechanical prototype assemblies including enclosures, busbars, heatsinks, wiring harnesses, and mounting structures
• Rapid prototype iteration—identify fit and assembly issues during builds, propose practical fixes, and implement changes on the bench to keep development moving
• Execute engineers’ design ideas end-to-end—source parts, coordinate with vendors, fabricate components, and deliver completed assemblies on schedule
• Vendor and shop interface—work with sheet metal vendors, machine shops, and contract manufacturers to procure prototype parts on tight timelines
• Wire harness builds—connector termination, cable routing, strain relief, labeling, and point-to-point verification per harness drawings
• Busbar fabrication—cutting, bending, drilling, insulating, and installing busbar assemblies per engineering drawings
• Test fixture design and build—create fixtures for Hi-Pot, partial discharge, corona, vibration, and ingress protection testing
• CAD support for prototype builds—create and modify 3D models and detailed manufacturing drawings (SolidWorks preferred) as needed to support fabrication
• BOM and parts tracking—generate BOMs, track prototype parts, and coordinate with supply chain for component specifications and vendor drawings
• Documentation—complete as-built records, build logs, test reports, and design file maintenance in the company PDM/PLM system

Requirements

• A demonstrated track record of excellence in hands-on prototype building and mechanical fabrication
• BS/MS Mechanical Engineering or closely related discipline
• Experience: Senior (5+ years) or Staff (10+ years) of hands-on mechanical design and prototyping in power electronics, power conversion, or analogous high-power electrical products

Skills

• Prototype builder at heart—you are as comfortable on the shop floor building assemblies as you are behind a screen reviewing drawings; hands-on fabrication is your primary mode of work
• Independent problem solver—ability to work effectively on early-stage product development efforts with ambiguous requirements and tasks
• Electromechanical assembly expertise—significant experience building and integrating electrical support equipment for power electronics, power conversion, or analogous high-power electrical products
• Busbar fabrication proficiency—hands-on experience with conductor sizing, laminated busbar stack-ups, insulation systems, and mechanical mounting methods
• Wire harness build experience—routing, connector and terminal crimping, wire gauge selection, and point-to-point verification
• Mechanical packaging for electronics—experience assembling packaging for electronic boards, including shock and vibration isolation, EMI shielding, and board-level interconnects
• Connector systems knowledge—power and signal connectors, contact ratings, environmental sealing, keying, and mating cycle durability
• Manufacturing-savvy builder—you understand sheet metal fabrication, CNC machining, injection molding, stamping, and die casting well enough to flag issues and work effectively with manufacturing partners
• SolidWorks preferred

Location

• Austin, TX

Work Type

• Temporary
• Contractor

Experience Level

• Senior (5+ years)
• Staff (10+ years)

Education Level

• BS/MS Mechanical Engineering or closely related discipline

Salary/Compensations

• $43 to $65 per hour

About the Company

• Enphase Energy is a global energy technology company and a leading provider of solar, battery, and electric vehicle charging products.
• Founded in 2006, our innovative microinverter technology revolutionized solar power, making it a safer, more reliable, and scalable energy source.
• Today, the Enphase Energy System enables users to make, use, save, and sell their own power.
• Enphase is also one of the most successful and innovative clean energy companies in the world, with more than 80 million products shipped across 160 countries.
• Join our dynamic teams designing and developing next-gen energy technologies and help drive a sustainable future!