Senior Machinist

Muon Space; San Jose (CA); On-site; USD 80,000 - 90,000; Full time

Benefits offered by this job

Equity compensation

Medical insurance

Dental insurance

Vision insurance

401k plan

Paid vacation

Paid holidays

Parental leave

Job summary

Muon Space in San Jose seeks a Senior Machinist to own machined parts from CAD to finished components used for testing and flight. You will bridge engineering and the machine shop, design fixturing, and lead first-article inspections in a fully on-site role.

Ideal candidates have 5+ years of aerospace/high-precision machining, 3- and 5-axis CNC programming experience with Fusion 360 or MasterCAM, and Haas/Fanuc knowledge. US citizenship or ITAR eligibility is required.

Qualifications

• 5+ years machining for aerospace/medical/high-precision industries.
• CAM programming with Fusion 360 or MasterCAM or similar.
• Haas controller experience and Fanuc familiarity.

Responsibilities

• Program and operate CNC mills and lathes for flight components.
• Participate in testing and tooling design reviews to flag tolerances and manufacturability.
• Develop fixturing, tooling, and processes to improve production speed and quality.
• Own first-article and in-process QC for hardware.
• Document via MES; write non-conformance tickets; maintain traceability.
• Train shop team and engineers on tooling and machining processes.

Skills

5+ years machining

High-precision experience

Security clearance readiness

Tools

CAM programming

Haas controller

Fanuc controls

Job description

About The Role

Muon seeks a Machinist ( Senior ) to join our Team. You’ll own the machined parts the engineering teams depend on for testing and flight— embedded between engineering and the machine shop. Design reviews on Tuesday, dialing in fixturing on Wednesday, owning first‑article inspection on Friday. The named point of contact for components as it moves from CAD to finished parts. This position is fully on-site at our San Jose office, five days per week.

Responsibilities

• Program and operate CNC mills and lathes for flight components
• Sit in testing and tooling design reviews to flag manufacturability and tolerance issues early
• develop fixturing, tooling, and processes to produce tooling faster and more efficiently.
• Own first-article and in-process QC for hardware
• Document via MES; write non-conformance tickets; maintain traceability
• Train shop team and engineers on tooling and component-specific machining processes.

Qualifications

• 5+ years machining for aerospace, medical, or other high‑precision industries
• Programming 3- and 5-axis CNC mills; CAM (Fusion 360, MasterCAM, or similar)
• Haas controller experience & Fanuc
• Strong metrology fundamentals; comfortable with inspection tools
• Comfortable with brittle materials (graphite, composites, ceramics)
• U.S. citizen, permanent resident, or protected individual (ITAR)
• Able to achieve security level clearance if needed

Nice‑to-have Skills

• Matsuura, Yasda, and Haas experience
• CMM programming
• Tooling, Test lab & class 7+ Cleanroom experience
• Exotic alloys, Graphite or brittle-material machining experience

Salary

The salary range for this role is $58 - $65 per hour, plus a competitive equity grant and comprehensive benefits package. Final compensation will be determined based on skills, qualifications, experience, and geographic location as assessed during the interview process.

About Muon Space

Founded in 2021, Muon Space is an end‑to‑end Space Systems Provider that designs, builds, and operates LEO satellite constellations delivering mission‑critical data. Our revolutionary, integrated technology stack enables customers to optimize every dimension of their missions for faster time‑to‑orbit and superior constellation remote sensing performance. Our state‑of‑the‑art facility in the heart of Silicon Valley is optimized for manufacturing spacecraft and rapid, flexible payload integration at scale. From climate monitoring to national security, Muon Space is dedicated to delivering Earth Intelligence for a safer and more resilient world.

Taking Care of Our Team

At Muon salary is only part of our total compensation package. In addition to salary, full‑time employees receive equity compensation as well as benefits including medical, dental, and vision insurance, a 401k retirement plan, short & long term disability and life insurance. We also offer three weeks paid vacation for new employees, along with 12 paid holidays, unlimited sick time and paid parental leave.

Our mission embraces the entire planet and we believe our team should too. Muon is dedicated to creating a diverse and dynamic company and workforce. We believe in equal employment opportunity regardless of race, color, ancestry, religion, sex, age, national origin, citizenship, sexual orientation, marital status, disability, or gender identity. We value diversity in the workplace, and that starts with our applicants.

In addition, if you need a reasonable accommodation as part of your application for employment or interviews with us, please let us know.

ITAR/EAR Requirements

This position requires access to export controlled information. To conform to U.S. Government export regulations applicable to that information, applicant must either be (A) a U.S. person, defined as a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (green card holder), (iii) refugee under 8 U.S.C.

• 1157, or (iv) asylee under 8 U.S.C.
• 1158, (B) eligible to access the export controlled information without a required export authorization, or (C) eligible and reasonably likely to obtain the required export authorization from the applicable U.S. government agency. The Company may, for legitimate business reasons, decline to pursue any export licensing process.