Mass Properties and Integration Systems Engineer - Lunar Permanence

We are looking for a Systems Engineer III to support mass properties engineering for the Mk1 Transfer Stage. This role owns the day-to-day maintenance and analysis of the mass-properties Bill of Materials (BOM), supports mass property predictions and tracking across the vehicle lifecycle. You'll work closely with design, manufacturing, integration, and test teams to ensure the vehicle's mass, center of gravity, and moments of inertia are understood, tracked, and reported accurately at every program milestone.

Mass properties data underpins nearly every other engineering discipline on the vehicle — from structural margins to guidance and control to propellant budgeting. As a Systems Engineer II on this team, you won't just track mass — you'll actively work with Fluids, Avionics, Thermal, GN&C, and Structures to find where mass can come out of the vehicle, and partner with manufacturing on trades that balance metrics for the best cost to performance ratio for our customers. Your work directly supports program-level decisions and keeps the vehicle within its mass and CG requirements throughout design, build, and test. Beyond tracking and reporting, this role is expected to dig into subsystem designs to find and drive mass reduction opportunities. You'll build close working partnerships with system leads championing minimum-mass solutions and partnering with manufacturing teams on trade studies that balance mass, cost, and producibility.

This is a strong fit for an engineer who wants hands-on ownership of a critical vehicle integration discipline, is comfortable getting into the design weeds with other subsystems, and enjoys cross-functional collaboration, hardware exposure, and design reviews.

What You’ll Do

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