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Flight Software Engineer

momentus
San Jose, CA Full Time
POSTED ON 1/9/2026
AVAILABLE BEFORE 3/8/2026

OUR COMPANY

As an early mover in the in-space transportation and infrastructure services, Momentus is at the forefront of the commercialization of space. With an experienced team of aerospace, propulsion, and robotics engineers, Momentus has developed a cost-effective and energy-efficient in-space transport system. 

OUR PEOPLE

Daring problems require daring solutions.  We boldly charge into uncharted territory knowing that no matter the outcome we will benefit from the journey and move closer to our goals no matter what. Our teams know that working at Momentus means more than building innovative technology, it means creating entirely new markets in the space economy. We are level-headed, business-minded strategic thinkers intent on providing immediate value to our customers today while simultaneously preparing for the vast possibilities of the future. If this sounds like you, we should talk.

JOB SUMMARY

We are seeking a Flight Software Engineer that will design, develop and test software that is used to control flight systems. The ideal candidate should be accustomed to working in a fast-paced environment and enjoys working on challenging problems.

Key Responsibilities: 

  • Validate, test, and extend vendor and/or open source software packages
  • Develop software applications to support spacecraft automation & testing
  • Develop software applications to support on-orbit operations
  • Support on-orbit operations and flight anomaly resolution activities

Required Skills and Experience: 

  • Extensive knowledge of Python, C , C
  • Experience with Linux shell scripting
  • Experience with either 
    • NASA core Flight System (cFS)
    • Robot Operating System 2 (ROS2)
  • Ability to work independently 
  • Excellent technical communications skills
  • Good written and verbal communication skills 

Desired Skills and Experience: 

  • Knowledge of spacecraft operations and/or astrodynamics
  • Familiar with Linux server configuration and administration.
  • Experience with the Yocto embedded Linux environment
  • Experience with developing Linux device drivers
  • Experience with the Rust programming language
  • Previous experience working on DoD and other USG development and deployment programs
  • Ability to hold and maintain a USG Security Clearance

Education & Work Experience:

  • BS degree in Computer Science, or a closely related discipline
  • 5-8 years relevant experience.

Compensation:

Annual Base Salary Range: $140,000 - $175,000/per year

Base pay is one part of our total compensation package (base bonus equity) and is determined within a range. Your actual base salary will be determined on job-related knowledge and skills, education, and experience.  Our benefit plans include medical, dental, and vision insurance, 401k retirement plan, short and long term disability and life insurance. We also offer flexible PTO, along with 11 paid holidays, sick time and paid parental leave.

This is a full-time position in San Jose, California. This position requires access to export-controlled commodities, technical data, technology, software, and services. U.S. citizenship, U.S. legal permanent resident status, or protected person status under 8 U.S.C. § 1324b(a)(3) is required. 

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

To all recruitment agencies: Momentus does not accept agency resumes. Please do not forward resumes to our employees or any company email. Momentus will not be responsible for any fees related to unsolicited resumes.  

Salary : $140,000 - $175,000

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