Mechanical Engineer Munition System

Velia Multi Services

San Francisco, CA

JOB DETAILS
SKILLS
3D Printing, Aerospace and Defense, Bill of Materials (BOM), Budget Management, Budgeting, CAD/CAM (Computer-Aided Design/Computer-Aided Manufacturing), CNC (Computerized Numerical Control) Systems, Casting, Computer Engineering, Electromechanical Systems, Electromechanics, English Language, FDM (Frequency Division Multiplexing), Finite Element Analysis, Geometric Dimensioning and Tolerancing, Geometry, Injection Molding, Lathe, Machining, Manufacturing, Mechanical Assembly, Mechanical Design, Mechanical Engineering, Metal Molding, Military/DoD Standards, PTC Creo, Printed Circuit Board (PCB), Printers, Prototyping, Pyrotechnics, Service Level Agreement (SLA), Simulation, Software Engineering, SolidWorks, SolidWorks Simulation (fka Cosmos FEA), Systems Engineering, Train Transportation, Vendor/Supplier Planning, Wheel/Front-End Loader
LOCATION
San Francisco, CA
POSTED
2 days ago

About The ProjectWe're building a small, safety-critical kinetic munition delivered by an FPV-class airframe. The system carries an electro mechanical safe and arm device (EMSAD) governed by a seven-state safety-arm-fire state machine, electromechanical safing features, and sensor suite. Everything has to survive flight loads, drops, vibration, and field handling — and fail safe at every step.What You'll DoDesign 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.Required5+ 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.Nice to haveExperience with safety & arming (S&A) mechanisms, fuzing, pyrotechnics, or anything else that has to be unambiguously safe before it's allowed to be dangerous.Familiarity with MIL-STD-810 (environmental), MIL-STD-331 (fuze tests), or equivalent civilian standards.FEA / structural simulation (Ansys, SolidWorks Simulation, Onshape FEA).Injection-mold and metal-casting DFM.FPV / small-UAV background — payload integration, mass/CG sensitivity.#J-18808-Ljbffr

About the Company

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Velia Multi Services