Director of Supply Chain

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About Proper Voltage

Proper Voltage is unlocking the next generation of battery technology across robotics, data centers, and defense. We’re building intelligent battery systems that make advanced chemistries (sodium‑ion, lithium‑titanate, lithium‑silicon) work in products that were never designed for them. Humanoid robots can upgrade power systems without redesigning their entire platform. Data centers get safer, cheaper backup power. Drones and autonomous vehicles get higher energy density without lengthy integration cycles.

If you want to work on hard engineering problems that matter this is the place.

Job Overview

The Director of Supply Chain & Procurement owns the full external manufacturing system for Proper Voltage. This role is accountable for CM selection and management, tooling and NRE decisions, supplier commercial terms, and manufacturing readiness as we scale from prototype into commercial production.

This person works closely with Engineering, Systems, and Finance to surface supply risk early, make irreversible decisions under uncertainty, and ensure contract manufacturers are aligned to quality, schedule, and cost expectations.

Our BOM spans cells, magnetics, PCBAs, harnessing, mechanicals, plastics, metals, power electronics, and enclosures. Direct ownership of electromechanical sourcing and manufacturing is required.

Who This Role Is For

This role is for someone who has operated inside world class manufacturing environments and has also personally built external manufacturing systems when they were still fragile, incomplete, and under pressure.

You have experience at large companies, but you did not depend on their infrastructure to make decisions. You have selected contract manufacturers, committed capital to tooling and capacity with imperfect information, and owned the outcome when those decisions did not go to plan.

You are comfortable operating without a playbook. You add structure only when it increases speed and clarity, not to create process for its own sake.

This Role Is Not a Fit If

You are primarily a planning, ERP, or process optimization leader.

You have managed execution inside mature supply chains but have not personally built and stabilized external manufacturing from the ground up.

You expect stable forecasts, fully defined requirements, or established processes before committing suppliers, tooling, or capital.

What You'll Do

• Build and manage all supplier and CM relationships, including evaluation, selection, negotiation, and ongoing performance.

• Own all commercial terms with suppliers: pricing, lead times, MOQ structures, tooling, NRE, and production commitments.

• Establish procurement and material planning processes that support volume scale (0 - 5K- 100K+ units) across multiple product SKUs.

• Drive readiness for production builds with Engineering Ops: long‑lead materials, capacity planning, and risk reviews.

• Ensure BOM stability, cost visibility, and cost reduction pathways across PCBAs, magnetics, cells, harnesses, and mechanicals.

• Oversee logistics for inbound materials and outbound finished goods, including freight, customs, and inventory buffers.

• Lead supply risk management: identify bottlenecks early, elevate appropriately, and ensure continuity across all programs.

Required Qualifications

• Proven success in leading complex electromechanical products through to volume production

• 10+ years supply chain, sourcing, or procurement leadership in electromechanical or power‑related hardware.

• Strong experience with contract manufacturers and suppliers across PCBA, mechanicals, magnetics, and cells.

• Proven ability to scale from prototype to multi‑thousand annual units, with experience building toward high‑volume production.

• Deep understanding of BOM control, supplier negotiation, and material cost structures.

• Experience building procurement and material planning processes that support fast‑growing hardware programs.

• Skilled working with engineering teams and understanding electromechanical systems.

• High ownership,…