End-to-End Mechanical Engineer – Spacecraft Systems (Hybrid)

Front Door Defense; San Jose, Northern (CA, KY); Hybrid; USD 144,000 - 177,000; Full time

Job summary

Muon Space in San Jose, CA, is seeking a Mechanical Engineer II to own the end-to-end mechanical execution of a space mission, from platform components to payload accommodations and environmental test. You will work with senior engineers and structural/thermal analysis teams to deliver flight-ready hardware.

You’ll design in SolidWorks, create assemblies and documentation, perform basic sizing, and support integration and test campaigns.

Qualifications

• 5+ years designing, building, and testing mechanical hardware for complex systems.
• Experience taking hardware from concept through build and test.
• Structural analysis fundamentals: hand calculations, margin assessment, and familiarity with FEA.
• Proficiency in CAD for medium-to-large assembly design and management (SolidWorks preferred).
• Solid command of drawings, GD&T, BOMs, and tolerance/mass budgets.
• Excellent communication and cross-functional coordination skills.
• A strong desire to learn and contribute in a fast-paced, dynamic environment.
• BS or higher in Mechanical Engineering or related field.

Responsibilities

• Own the mechanical execution of an assigned mission end-to-end - from requirements through design, build, integration, and environmental test - with support from senior engineers
• Tailor Muon's platform components to mission needs and design new mission-specific components and payload accommodations
• Create and manage spacecraft-level mechanical assemblies in SolidWorks, including envelopes, interfaces, and configuration control
• Perform first-order structural and thermal sizing to guide your designs, partnering with Muon's dedicated structural and thermal analysis groups for detailed analysis
• Produce and release engineering documentation: drawings, GD&T, BOMs, and tolerance/mass budgets through ECO/DCO processes
• Support environmental test campaigns (vibration, TVAC) and spacecraft integration alongside production and test teams
• Write build procedures and support hardware assembly and integration on the floor
• Present your work in design reviews (PDR, CDR, MRR) and coordinate across systems, thermal, avionics, and payload teams

Skills

Mechanical hardware design

End-to-end development

SolidWorks CAD

GD&T and BOMs

Cross-functional communication

Spacecraft experience

FEA familiarity

Education

BS in Mechanical Engineering

Tools

FEMAP/NASTRAN/ANSYS

Python

MATLAB

PLM systems

Job description

Muon Space in San Jose, CA, is seeking a Mechanical Engineer II to own the end-to-end mechanical execution of a space mission, from platform components to payload accommodations and environmental test. You will work with senior engineers and structural/thermal analysis teams to deliver flight-ready hardware.

You’ll design in SolidWorks, create assemblies and documentation, perform basic sizing, and support integration and test campaigns.