Mechanical Engineer Munition System

Full-time Mechanical Engineer — Munition System needed for a defense & space system in Washington, DC. ONSITE ONLY. No visa sponsorship offered. 5 years of experience required. Competitive salary and package offered.

What you’ll do

Design the munition housing, internal structure, and arming mechanism (S&A train, transport pin, motor-driven elements) in CAD.

Define the mechanical safety architecture together with the HW and SW leads — interlocks, out-of-line geometry, transport-pin retention, drop/impact behavior.

Spec materials, finishes, tolerances, and fasteners for the operating environment (temperature, vibration, humidity, salt fog as relevant).

Build prototypes in-house (3D print, CNC) and run iteration loops; hand off drawings and DFM packages to external machinists / injection-mold vendors.

Plan and execute mechanical qualification: drop, shock, vibration, environmental, mass-properties / CG checks, integration with the airframe.

Own the BOM, weight budget, and CG budget. Track them like the safety-critical numbers they are.

Work directly alongside the HW and SW engineers — PCB outline, connector placement, harnessing, mechanism actuation requirements come out of these conversations.

Required

5+ years designing mechanical assemblies that go into the field — UAV payloads, defense, automotive, aerospace, or similar regulated/rugged domains.

Fluency in a parametric CAD tool (SolidWorks, Fusion 360, Onshape, Creo, NX — pick your favorite).

Comfort producing manufacturing-ready drawings: GD&T, tolerance stacks, surface finishes, fits.

Hands-on with prototyping: FDM/SLA printers, mill, lathe, basic machining sense.

Strong intuition for failure modes — you’ve broken things deliberately and know which question to ask next.

Working English, written and verbal.