Six Figure Work

Principal Software Engineer, Mission Design

Muon Space

Company websitemuonspace.com (Muon Space, opens in new tab)

Base salary $266K  to $298K

Employer-published annual base salary, USD. Advertised base range in San Jose, CA

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  • LocationSan Jose, CA
  • WorkplaceWorkplace not stated
  • Status at last checkSource accepting applications when checked
  • Last checked (1 h ago) · observed since

About this job

About the role

Muon seeks a Principal Software Engineer to join our Software Organization. This engineer will synthesize a broad understanding of the full Muon software architecture and roadmap with the unique needs of each potential mission, to plan and design the software solutions necessary for mission success.  They will guide the evolution of the common platform to benefit our customers and match market needs – partnering closely with peers in Business Development, Product Management, Systems Engineering and Hardware. They will identify early when there are key risks, as well as key opportunities to offer the customer more than they realize they can ask for. They will be a key component in enabling Muon's Software organization, and the company as a whole, to deliver what the customer needs, when they need it, so that we can successfully fulfill their mission as partners.

The preferred location for this role is three days a week on-site at our San Jose, CA office, but alternative locations will be considered for the right candidate.

Responsibilities

  • Work with Business Development to prioritize, design and align on staffing for the highest impact small projects that, if done early, will unlock major value for our customers. Then, guide those efforts to successful and timely impact.
  • Ensure that major, common customer needs are captured in organizational plans and the company's Product Roadmap.
  • Act as part of the group with stewardship over the architectural standards and guardrails within the Software organization, ensuring high engineering velocity for our teams, and security, reliability and performance for our systems.
  • Support the Customer Solutions Software Engineers in their engagements with our customers, and act as the escalation point for the most important customer discussions and design questions. Act as an accelerator for this entire group.
  • Ensure Software organizational plans and roadmaps for missions are aligned with the company's strategic framework.
  • Help to define training plans for software engineering.

Qualifications

  • Expertise in whole-system design, holistic testing and deployment strategy, and the state of the art in software engineering methodology
  • Extensive knowledge of theory and practice across aerospace, robotics or an adjacent domain
  • Excellent negotiation skills in both organizational and technical contexts
  • Expertise in multiple programming languages
  • Expertise in distributed systems theory and practice

Nice-to-have Skills

  • Expertise with C++ and Python
  • Experience with AWS, Kubernetes, containers and related cloud technologies
  • Experience with embedded software, high-performance computing, FPGA, or related domains
  • Experience with statistical analysis and/or machine learning

Salary

The salary range for this role is $266,000 - $298,000, 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. 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 ($266,000) is above 93% of the 4,307 Software Engineering roles in California listed on this site; 13 others list the same floor. Their median floor is $176,000; the middle half runs from $149,100 to $202,500.

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 7, 2026.

This range next to 6 other live Muon Space roles with the nearest advertised base floor
Chart as a table
This range next to 6 other live Muon Space roles with the nearest advertised base floor
RolePublished base
Principal Software Engineer, Mission Design (this listing)$266K - $298K
Director, Manufacturing Architecture$261K - $292K
Senior Product Manager$272K - $307K
Senior Director, EO/IR Instrument Engineering$256K - $293K
Staff Product Manager$243K - $274K
Staff Software Engineer, Onboard Compute Architecture$240K - $267K
Staff Software Engineer, Simulation Infrastructure$240K - $265K

Same $100K to $400K scale as every card. All Muon Space roles · How to read the bar

Observed changes

  1. Began meeting the published-salary criteria
  2. First observed on the employer's board
Observed since
Employer-stated posting date
2026-10-22
Where this pay comes from

Location as the employer wrote it: San Jose, CA

The salary range for this role is $266,000 - $298,000, 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.