Senior Supply Chain Planner
Amca · El Segundo, CA · United States · On-site
Pay: USD 110,000 – 150,000 a year
Posted Aug 26, 2026
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There was a time when all of America believed that the future of the physical world could be radically different. The engineers of the mid-1900s put a man on the moon in eight years, designed and built planes and submarines from scratch in under three, and conceived of building things we wouldn’t even be able to dream up today.
Today, the last of the engineers who imagined and built these systems are retiring. As they go, we lose not only the engineering knowledge gained from their decades of imagination and trial-and-error, but also the spirit that made that imagination possible.
Amca is working day-in and day-out to restore America’s ability to engineer anything that our critical systems depend on, and reinvigorate the cycle of creation that allows imagination to shape physical reality. We rapidly develop and manufacture new critical components and subsystems required to build and sustain the planes, military vehicles, and core infrastructure America needs. By restoring the capability of our antiquated supply chains, we increase the country’s capacity to imagine and realize new systems, and make a physical world that looks very different from today.
Senior Supply Chain Planner
Overview
Amca is building its own ERP system and the MRP that will run inside it. We need a senior supply chain planner to help us get MRP right. You will bring the judgment that comes from having planned for real production and apply it to how the system handles demand, BOMs, lead times, and order policies. You will write the planning requirements, work directly with the engineers building the system, and test MRP outputs to continually improve them.
The rest of the job is one you already know. You will own the master production schedule for El Segundo, maintain the BOMs and planning parameters MRP runs on, and release clean purchase signals to buyers. If the MRP outputs need manual correction before release, you will also correct what caused the signal to be wrong in the first place.
As Amca's homegrown ERP scales across our factories, the planning processes you define in El Segundo are the ones the rest of the company will inherit.
Responsibilities
Shaping Our MRP
Own the planning requirements for Amca's custom MRP, covering how demand is calculated against inventory and open orders, how BOMs and revision effectivity are handled, and how lead times, order policies, exception logic, and RFPO release should work
Work alongside the engineering team through design, build, and release, and build planning logic that will survive contact with reality
Test new functionality against real builds and real data, define the acceptance criteria, and find the failure cases before they reach production
Define our planning processes, standards, and documentation as Amca scales to more factories
Demand Signal and Master Scheduling
Own the master production schedule for El Segundo, setting build sequence, quantities, and dates against customer…