Principal Software Engineer (MS&A)

Job Description
Principal MS&A Software Engineer - Sentinel ICBM Program
Location: Hill AFB, Utah (On-site)
What's it like to work at BAE Systems? It's the feeling of knowing your code and calculations are directly securing the future of national defense on one of the most complex "mega-projects" in the world.
Our Modeling, Simulation, and Analysis (MS&A) team provides the critical digital architecture needed to modernize the U.S. ICBM weapon system. As a Senior MS&A Developer Engineer, you will embark on a long-term career dedicated to the Sentinel program, ensuring the next generation of ballistic missiles is safe, accurate, and effective. In this job, you will lead the development of high-fidelity simulation tools that predict flight performance and validate vehicle design.
Your Responsibilities
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.

Why BAE Systems?
Based at Hill AFB, we are a mission-focused partner to the USAF Nuclear Weapons Center. We are proud to be a "Top Workplace" in Utah for six consecutive years, offering a culture of technical excellence and a strong work-life balance.
Note: Due to the classified nature of this environment, this position is 100% on-site at Hill AFB.
#ASFS
Required Education, Experience, & Skills

• 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.

Pay Information
Full-Time Salary Range: $120874 - $205486
Please note: This range is based on our market pay structures. However, individual salaries are determined by a variety of factors including, but not limited to: business considerations, local market conditions, and internal equity, as well as candidate qualifications, such as skills, education, and experience.
Employee Benefits: At BAE Systems, we support our employees in all aspects of their life, including their health and financial well-being. Regular employees scheduled to work 20+ hours per week are offered: health, dental, and vision insurance; health savings accounts; a 401(k) savings plan; disability coverage; and life and accident insurance. We also have an employee assistance program, a legal plan, and other perks including discounts on things like home, auto, and pet insurance. Our leave programs include paid time off, paid holidays, as well as other types of leave, including paid parental, military, bereavement, and any applicable federal and state sick leave. Employees may participate in the company recognition program to receive monetary or non-monetary recognition awards. Other incentives may be available based on position level and/or job specifics.
About BAE Systems Intelligence & Security
BAE Systems, Inc. is a defense, aerospace, and security company headquartered in Falls Church, Virginia, with more than 40,000 employees worldwide. We serve, supply, and protect those who protect us. As one of the most geographically diverse international defense companies, we deliver a full range of products and services spanning air, land, maritime, space, and cyber, including advanced electronics, intelligence solutions, and dedicated customer support.
Our culture is performance-driven and values-led, built on curiosity, creativity, and collaboration. Purpose isn't a tagline here. It's what drives us. We're developing breakthrough technologies that defend national security and make a lasting impact on our communities and our planet. When you join BAE Systems, you're not just building a career. You're contributing to a mission that truly matters.
This position will be posted for at least 5 calendar days. The posting will remain active until the position is filled, or a qualified pool of candidates is identified.