Katalyst Space Technologies

Software Engineer II, Modeling and Simulation

Katalyst Space Technologies · Broomfield, Colorado, United States
Broomfield, Colorado, United States was $120K–$165K Closed
Applications are closed for this role. It was originally posted 2026-07-24. It’s no longer accepting applicants — see roles Katalyst Space Technologies is still hiring for →, or browse the live openings below.
Salary
$120K–$165K
Type
Full-time
Experience
3+ yr

Katalyst Description:

Katalyst is an American technology company  focused on d ynamic space operations .   We are building a fleet of  dual-use multipurpose  robotic space vehicles  to  creat e the  future where maneuvering, upgrading, refueling,  resupply  and exploration are as routine as they are on Earth. Getting to space and overcoming the gravity well is only half the story. What you do there is the future. We are not building the trains. We are building the machines that lay down the tracks. By developing the foundational capabilities that make sustained, responsive operations possible, we enable a new era of space  exploration  that strengthens national security and ensures freedom of action in an increasingly contested domain.

Katalyst Culture:

Working at Katalyst is intense, hands-on, and deeply rewarding. You’ll take real ownership and see your work move from concept to operations in an environment where the problems are hard and the impact is real. We value humility, craftsmanship, and doing things the right way, even when it’s harder. You’ll work closely with thoughtful, driven teammates who push each other to do their best.

What You’ll Do

  • Help create models and sims for cross domain uses
  • Create training environment for operations
  • Create AI&T testing tool suite to aid in SITL testing
  • Maintain and create coding environment
  • Verify model and sims against hardware

What We’re Looking For

Required

  • 3-8 Years of experience in modeling and simulation for complex aerospace missions
  • Expert knowledge in C++ and Python
  • Owned at least one area of a software product
  • Experience developing for multiple internal stakeholders such as AI&T, GSW, MOPS, FSW, etc
  • Knowledge of distributed compute frameworks
  • BS in Aerospace Engineering, Physics, Computer Science or closely related STEM field

Your Ideal Background

Preferred

  • Experience simulating in 6-DOF relative motion and RPOC
  • Contributed to previous digital twin efforts
  • Strong foundation in multiple subsystems such as GNC, Flight Dynamics, EPS, Propulsion, etc
  • Previous experience in simulations frameworks such as Basalisk, STK, GMAT
  • Strong foundation in multiple subsystems such as GNC, Flight Dynamics, EPS, Propulsion, etc

Additional Requirements : Must be willing to work extended hours and weekends as needed.

Compensation and Benefits: Your base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, and experience. The anticipated salary range for this role is $120,000 - $165,000 annually.

Base salary is just one part of your total rewards package at Katalyst. You will also be eligible for long-term incentives, in the form of the Employee Stock Option and Equity Plan, as well as a relocation bonus and other discretionary bonuses. You will also receive access to comprehensive medical, vision, and dental coverage, and unlimited Paid Time Off.

At Katalyst our work on projects involving the U.S. Department of Defense requires adherence to International Traffic in Arms Regulations (ITAR), 22 C.F.R. Parts 120-130, which requires compliance with U.S. export laws before allowing employees to perform certain positions. Currently, our available roles necessitate access to ITAR-controlled information, and as a result, Katalyst would have to ensure any non-US person is authorized access to ITAR information before the commencement of employment. We are committed to equal employment opportunities and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, or national origin.

PythonC++
E
Principal Guidance, Navigation, and Control Engineer
Broomfield, Colorado, United States
Engineering
$180K–$280K
E
Senior Guidance, Navigation, and Control Engineer
Broomfield, Colorado, United States
Engineering
$140K–$240K
E
Senior Guidance, Navigation, and Control Engineer, Space Systems
Broomfield, Colorado, United States
Engineering
$140K–$240K
See all live roles at Katalyst Space Technologies →
A
Software Engineer - Modeling & Simulation
Anduril Industries Costa Mesa, California, United States
Engineering
$166K–$220K
C
Senior Algorithms and Simulation Software Engineer
Commonwealth Fusion Systems Devens, MA Hybrid
Engineering
$140K–$200K
O
Engineer II, Embedded, Sensors, and Safety Software
Outrider Henderson, CO Hybrid
Engineering
$120K–$135K
T
Staff, Software Engineer - Simulation Vehicle Modeling
Torc Robotics Remote (US) Remote
Engineering
$186K–$223K
See all Engineering roles →
Applications closed