2mo ago
$90,000 – $125,000/yr

Software Engineer I, Modeling and Simulation

United StatesUnited States·Broomfieldmid
Software EngineerSoftware Engineering
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Quick Summary

Key Responsibilities

Working at Katalyst is intense, hands-on, and deeply rewarding.

Requirements Summary

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

Technical Tools
Software EngineerSoftware Engineering

Katalyst is an American technology company focused on dynamic space operations.  We are building a fleet of dual-use multipurpose robotic space vehicles to create 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.

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 We Offer

~3 min read
✓Stock options & equity
✓Medical, dental, and vision coverage
✓401(k)
✓Unlimited PTO
✓Catered lunches
✓Help create models and sims for cross domain uses
✓Learn how to convert data sheets into code
✓Aid the team in creating AI&T testing tool suite to aid in SITL testing
✓Maintain and create coding environment
✓Verify model and sims against hardware
✓1-3 Years of experience in modeling and simulation for complex aerospace missions
✓2-3 years working in C++ and Python
✓Strong understanding of object-oriented software development practices
✓Ability to understand new challenges quickly, formulate a plan, get buy-in, and execute
✓Understanding complex distributed systems, and how the components you design and deliver will fit into those larger systems
✓Excellent problem-solving skills and attention to detail
✓BS in Aerospace Engineering, Physics, Computer Science or closely related STEM field
✓Experience simulating in 6-DOF relative motion and RPOC
✓Contributed to previous digital twin efforts
✓Working knowledge in multiple at least one subsystems such as GNC, Flight Dynamics, EPS, Propulsion, etc
✓Previous experience in simulations frameworks such as Basalisk, STK, GMAT
✓Working knowledge of distributed compute frameworks

Location & Eligibility

Where is the job
Broomfield, United States
On-site at the office
Who can apply
US

Listing Details

Posted
July 14, 2026
First seen
July 14, 2026
Last seen
October 7, 2026

Posting Health

Days active
84
Repost count
0
Trust Level
42%
Scored at
October 7, 2026

Signal breakdown

freshnesssource trustcontent trustemployer trust
Employees
125
Founded
2017
Domain
View company profile
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Software Engineer I, Modeling and Simulation $90k–$125k