> Markdown version of [/jobs/ext/3541988-principal-software-engineer-ms-a](https://www.wearedevelopers.com/jobs/ext/3541988-principal-software-engineer-ms-a). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Principal Software Engineer (MS&A)

- **Company:** BAE Systems
- **Location:** Hill Air Force Base, UT, United States
- **Experience:** Expert
- **Salary:** $120,874.0 - $205,486.0
- **Contract:** Permanent contract
- **Skills:** Agile Methodology, Data Analysis, C++ (Programming Language), Python (Programming Language), Software Engineering, Software Systems, Advanced Reports, Git, Infrastructure Automation Frameworks, Information Technology, Optimization Algorithms, Programming Languages
- **Published:** September 30, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9186235/principal-software-engineer-msa

## About the Role

* Bachelor's Degree or higher in Software Engineering or Computer Science 12+ years of industry experience (10 years with a graduate degree).
 * Understanding of agile software development practices and procedures.
 * Developer level proficiency with configuration management tools such as Git.
 * Developer level proficiency with coding languages such as C++ and Python.
 * Current US DoD/DoW Secret Security Clearance.
 * The ability to achieve and maintain a US DoD Top Secret Security Clearance.

Preferred Education, Experience, & Skills

 * 12 years of progressive experience in systems design, integration and analysis of military hardware and software systems/processes.
 * U.S. Citizenship with an active US DoD Top Secret Security Clearance granted within the last 5 years.
 * Experience with Department of Defense projects, DoD Acquisition Lifecycle, and/or ICBM weapon system.
 * Experience with 6 degree-of freedom simulations.
 * Model development of rocket or missile systems Experience with optimization algorithms and analyzing large data sets.

## Description

As a Senior MS&A Developer Engineer, your primary goal is to ensure the LGM-35A Sentinel performs flawlessly through the development of a six-degrees-of-freedom (6-DOF) simulation model. Your day-to-day functions will include:

 * Simulation Development: Designing, coding, and testing advanced rocket and missile dynamics simulations to evaluate flight performance.
 * Technical Validation: Applying advanced engineering theories to ensure MS&A tools are accurate, complete, and based on sound physical principles.
 * Cross-Functional Collaboration: Partnering with developers and engineers to evaluate solid rocket motors, guidance equipment, and propulsion systems.
 * Strategic Reporting: Translating complex simulation data into technical briefings and reports for the System Program Office.