Principal MS&A Software Engineer - Sentinel ICBM Program

Job Description
Join BAE Systems and contribute to one of the most complex national-defense modernization efforts in the world. As a Principal MS&A Software Engineer, you will play a critical role in developing the digital architecture that underpins the next-generation LGM-35A Sentinel ICBM. Your work directly supports the U.S. Air Force by ensuring the missile system is safe, accurate, and mission-ready.
What You'll Do
In this role, you will lead the creation and refinement of a high-fidelity six-degrees-of-freedom (6-DOF) simulation model used to predict missile flight performance and validate vehicle design. Your responsibilities include:

• Simulation Development: Design, code, and test advanced rocket and missile dynamics models to evaluate flight behavior and system performance.
• Technical Validation: Apply advanced engineering principles to ensure MS&A tools are physically accurate, complete, and reliable.
• Cross-Functional Collaboration: Work closely with propulsion, guidance, and systems engineering teams to assess solid rocket motors, guidance components, and propulsion systems.
• Strategic Reporting: Convert complex simulation outputs into clear technical briefings and reports for the USAF System Program Office.

Why BAE Systems
Located at Hill AFB, BAE Systems is a trusted partner to the USAF Nuclear Weapons Center. We've been recognized as a "Top Workplace" in Utah for six consecutive years, offering a culture grounded in technical excellence, mission focus, and strong work-life balance. Due to the classified nature of the Sentinel program, this position is fully on-site.
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 obtain and maintain a US DoW 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, Inc.
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.