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Software Engineer II, Modeling and Simulation

Katalyst Healthcares & Life Sciences
Full Timejunior
Broomfield, Colorado, United StatesPosted 8 days ago

Role Overview

Katalyst Healthcares & Life Sciences is hiring a entry-level Software Engineer II, Modeling and Simulation. This is a full-time role in Broomfield, Colorado. Part of Katalyst Healthcares & Life Sciences's Security hiring, posted last week. Full responsibilities, required qualifications, and the apply link are listed in the description below.

Salary Context

Salary is not disclosed in this posting. Market median for Junior-level Security roles is $83k-$120k (based on 82 comparable listings). Many employers share specifics during the interview process or after an initial screen.

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Job description

Katalyst Description:

We build robotic spacecraft that enable dynamic space operations, creating a future where maneuvering, upgrading, refueling, 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 activity 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.

About Katalyst Healthcares & Life Sciences

Katalyst Healthcares & Life Sciences logo

Katalyst Healthcares & Life Sciences

katalysthls.com

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Frequently Asked Questions

How do I apply for the Software Engineer II, Modeling and Simulation position at Katalyst Healthcares & Life Sciences?

Use the Apply button above to submit your application directly to Katalyst Healthcares & Life Sciences. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.

Where is the Software Engineer II, Modeling and Simulation position at Katalyst Healthcares & Life Sciences located?

This position is based in Broomfield, Colorado. Katalyst Healthcares & Life Sciences has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.

What does a Software Engineer II, Modeling and Simulation at Katalyst Healthcares & Life Sciences earn?

Katalyst Healthcares & Life Sciences has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.

When was the Software Engineer II, Modeling and Simulation role at Katalyst Healthcares & Life Sciences posted?

This role was posted on July 14, 2026 (8 days ago). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.

Is the Software Engineer II, Modeling and Simulation role at Katalyst Healthcares & Life Sciences entry-level?

Yes. This is an entry-level position. Strong candidates typically have 0-2 years of relevant work experience, internships, or significant project work. Read the full description for any specific qualification requirements Katalyst Healthcares & Life Sciences has listed.

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