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Aerospace Flight Software Engineer (cFS)

Relative Dynamics
Full Timemid
Greenbelt, Maryland, USPosted April 15, 2026

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Job Description

At Relative Dynamics we value knowledge as a process rather than knowledge as an answer. Founded in 2011 our goal is to define the new space era by continuously pushing the boundaries of engineering models services and technology development. Visit us at www.relativedynamics.space.

Relative Dynamics Inc. has an exciting opportunity for an Aerospace Flight Software Engineer with cFS experience. You will help develop, test, and integrate the flight software and collaborate with other engineering teams. This position is located at Goddard Space Flight Center in Greenbelt, MD.

What You'll Get to Do:

  • Develop, test, and integrate flight software as a key member of the Flight Software Team
  • Write cFS (core Flight System) applications and libraries or edit existing code
  • Design, implementation, and maintenance of high reliability C software
  • Implement mission OPS (stored commands, ground commands, file management, modes, etc.)
  • Develop test scripts using ruby to be integrated into COSMOS
  • Debug complex flight software issues and come up with solutions
  • Perform work on time, meeting all functional and performance requirements
  • Work closely with the other engineering groups for the success of programs

What You'll Need:

Required Skills

  • Bachelor’s Degree in Computer Sciences, Mathematics, Engineering, Software Engineering, or a related field
  • 15+ years’ experience with a minimum of 7-10 years of directly related experience in programming and software systems.
  • Experience writing cFS (core Flight System) applications and libraries or editing existing code
  • Experience with C, Python, Ruby, and/or COSMOS

Desired Skills

  • Knowledge of Wumbo, Linux and kernel modification
  • Understanding of device trees and device drivers in Linux
  • Understanding of communication protocols (UART, SPI, I2C, UDP/TCP)
  • Flight experience, has worked on commissioning and ground operations for other missions

What You Won't Do:

  • Feel stuck as we offer great opportunities to advance and learn
  • Feel like a number as we're a close-knit bunch and always have each other’s backs

Who You Are

  • A self-starter who thrives in a fast-paced environment
  • A quick learner who is always ready to gain depth of knowledge
  • A reliable worker who knows the importance of showing up when it counts
  • Accept assignments with open cooperative positive and team-oriented attitudes
  • Able to plan and execute plans across teams
  • Effective communicator both written and verbal

What You'll Enjoy:

  • Competitive wage and benefits package
  • Medical, dental, vision and life/disability insurance
  • Vacation and paid holidays
  • Tuition reimbursement
  • Great 401k with company match
  • Employee referral program
  • Community involvement investing and giving back to the community

Relative Dynamics conducts a comprehensive background check that includes drug testing. We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, national origin, gender identity, sexual orientation, age, marital status, veteran status or disability status.

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