1X

Supplier Development Engineer - Die Casting

San Carlos April 21, 2026 Full Time

Supplier Development Engineer, DIe Casting | Supply Chain
Location: San Carlos, CA (on-site)

About 1X
We build humanoid robots that work alongside people to solve labor shortages and create abundance.

Role Overview
We are seeking a Supplier Development Engineer to help scale our supply chain to support the delivery of world-class robotics systems. You will be responsible for ensuring suppliers can produce precision structural components that meet our rigorous quality standards. Your work will play a vital role in the launch and sustained production of highly complex bipedal humanoids.

You Will

  • Partner with engineering and sourcing teams to select suppliers based on capabilities in castings, machining, and structural assembly

  • Source and qualify vendors for castings, extrusions, machined parts, and sheet metal

  • Validate surface treatments, welding, heat treatments, and coating processes

  • Review GD&T on complex structural components and verify with metrology tools

  • Collaborate on lightweighting initiatives and design optimizations

  • Lead the supplier industrialization process from design through production ramp-up

  • Support suppliers with tooling, equipment, and process qualifications

  • Assess supplier readiness for vehicle builds and manage production risk

  • Drive the APQP process and support PPAP through the start of production

  • Train suppliers on 1X’s quality systems and review part quality documentation

  • Lead root cause and corrective action efforts for supplier quality issues

  • Monitor and report supplier quality metrics to ensure ongoing improvement

  • Apply lean and quality tools to drive continuous improvement across the supply base

  • Travel up to 40%, domestically and internationally, sometimes on short notice

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