Senior Software Engineer, Test Infrastructure
Company websitemuonspace.com (Muon Space, opens in new tab)
Base salary $213K to $237K
Employer-published annual base salary, USD. Advertised base range in San Jose, CA
You apply on the employer's own site. Six Figure Work does not handle applications.
- LocationSan Jose, CA
- WorkplaceWorkplace not stated
- Status at last checkSource accepting applications when checked
- Last checked (3 h ago) · observed since
About this job
About the role
Muon seeks a Senior Software Engineer to join our Software Test team. An ideal candidate is an expert in software testing processes, an accomplished software tool developer, and experienced with Hardware-in-the-Loop and Simulations driven testing. In this role, you will be a major contributor to the best-practices and architecture of our software testing infrastructure. You will work with engineers across our department to implement testing policy and deliver testing capabilities, improving our velocity and ability to launch successful missions. This position is based at our San Jose, CA office.
Responsibilities
- Build and support in-house software testing infrastructure, including hardware testbed capabilities as well as simulated test scenarios.
- Break down complex technical goals into detailed and well-explained proposals.
- Integrate feedback from client teams to drive iterative improvements to our testing tools and procedures.
- Expand test coverage by developing novel off-nominal test scenarios.
- Work closely with the Simulations team to integrate simulation tools into automated testing campaigns.
- Lead by example with reliable estimation and planning.
- Ensure team alignment with company goals and success against performance metrics.
- Mentor Test and Simulation team engineers.
Qualifications
- Proven ability to deliver reliable software testing infrastructure.
- B.S. or equivalent experience in Computer Science or a related field.
- 8+ years' experience as a software engineer in a team environment.
- Strong programming experience in Python.
- Experience with version control systems (e.g., Git) and continuous integration/continuous deployment (CI/CD) pipelines (e.g. Github Actions).
- Familiarity with Linux systems administration and Docker containers.
- Willingness to operate in novel technical domains.
- Excellent communication and presentation skills.
Nice-to-have Skills
- Knowledge of C/C++.
- Fluency in statistical analysis.
- Familiarity with common electronics test equipment (e.g., oscilloscopes, multimeters, power supplies, logic analyzers).
- Experience testing embedded hardware projects, like robotics, autonomous vehicles, or aerospace.
- Experience designing infrastructure or orchestration for running and reporting on end-to-end integration tests on large multi-component systems.
- Experience with Hardware-in-the-Loop integration testing.
- Familiarity with cloud deployment environments, like Kubernetes and virtual instances.
- Experience with Software-in-the-Loop simulation.
Salary
The salary range for this role is $213,000 - $237,000 plus a competitive equity grant and comprehensive benefits package. Final compensation will be 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. We encourage you to apply, even if you don't check all the boxes, and we look forward to reviewing your application! In addition, if you need a reasonable accommodation as part of your application for employment or interviews with us, please let us know.
Muon is currently registered and able to hire in the following states:
AL, AZ, CA, CO, CT, DC, FL, GA, IL, IA, ID, MD, MA, MI, MN, MO, NJ, NY, NC, OH, OR, PA, TN, TX, VT, VA, WA
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.
Source: Muon Space on Greenhouse · View original posting (opens in new tab)
Pay in context
This role's base floor ($213,000) is above 77% of the 4,198 Software Engineering roles in California listed on this site; 29 others list the same floor. Their median floor is $176,550; the middle half runs from $149,200 to $204,000.
Only jobs on this site count, and each one publishes a base salary of $100,000 or more, so this compares six-figure jobs with each other, not with the whole market. Computed Nov 6, 2026.
This listingSenior Software Engineer, Test Infrastructure$213K to $237K
Senior FPGA Engineer, Networking & Security$213K to $237K
Senior Software Engineer, Flight Software$213K to $237K
Senior Software Engineer, Software Platform$213K to $237K
Senior Software Engineer, Ground Station Platform$213K to $237K
Senior Software Engineer, Hardware Test$213K to $237K
Senior Flight Dynamics Software Engineer, Mission Planning Platform$213K to $237K
Chart as a table
| Role | Published base |
|---|---|
| Senior Software Engineer, Test Infrastructure (this listing) | $213K - $237K |
| Senior FPGA Engineer, Networking & Security | $213K - $237K |
| Senior Software Engineer, Flight Software | $213K - $237K |
| Senior Software Engineer, Software Platform | $213K - $237K |
| Senior Software Engineer, Ground Station Platform | $213K - $237K |
| Senior Software Engineer, Hardware Test | $213K - $237K |
| Senior Flight Dynamics Software Engineer, Mission Planning Platform | $213K - $237K |
Observed changes
- First observed on the employer's board
- Began meeting the published-salary criteria
- Observed since
- Employer-stated posting date
- 2026-06-17
Where this pay comes from
Location as the employer wrote it: San Jose, CA
The salary range for this role is $213,000 - $237,000 plus a competitive equity grant and comprehensive benefits
- Method
- Employer text, read with fixed rules and re-verified
- Checked
- Rule set
- us-base-v2
The pay passage appears in the employer's own job text. Fixed, deterministic rules located it, and the passage below was checked against the stored copy of the posting.
What we verified
- The pay figures come from the employer's own listing, quoted exactly above.
- The pay is an annual base salary in US dollars with a minimum of at least $100,000.
- The role was publicly listed on the employer's job board when last checked.
We do not verify what the employer will actually offer, whether the employer is still recruiting for the role, or anything beyond what the employer published. Full methodology.
