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FAST Labs - Senior Principal Systems Engineer

BAE Systems
BAE Systems Salary
Nashua, NH Full Time
POSTED ON 12/25/2025
AVAILABLE BEFORE 1/24/2026

Job Description
Do you like to use your analytic skills and operational mindset to help protect America, our citizens, and interests? Our employees design, integrate, and test the world’s next generation communication and electronic warfare systems for the United States DoD and international customers. You will be among the brightest minds, working on the aerospace and defense industry’s most difficult problems. Drawing strength from our differences, we’re innovating for the future. We put our customers first – exemplified by our mission: “We Protect Those Who Protect Us®.” Sound like a team you want to be a part of? Come build your career with us.

BAE Systems’ Mission Assessments (MA) organization is revolutionizing how mission-level operational analysis is planned, executed, and delivered. The Mission Assessments organization was created to address the rapidly increasing demand for mission-level operational analysis. Our mission is to achieve excellence in multidomain (MDO), systems-of-systems (SoS) Mission Assessments and effectively communicate the value of BAE Systems products to customers, DoD leadership and the warfighter. To do this we must bring together models of advanced technologies, weapons, platforms, and threats in relevant mission simulations – and then apply our deep subject matter expertise and experience to deliver assessments that can change the world.

BAE Systems is seeking a highly motivated Operations Analyst to join the Mission Assessments team. The qualified analyst will collaborate with design teams assessing threats, developing and quantifying operational level systems requirements, developing operational systems concepts, and assessing mission effectiveness in simulated environments. The analyst will perform operational analysis studies using a wide variety of DoD existing and self-developed modeling & simulation tools.

Duties and Responsibilities may include:
  • Perform mission simulation using government or industry standard tools to determine mission effectiveness.
  • Perform engagement simulation using standard tools, MATLAB, Simulink and others.
  • Perform modeling and simulation studies that optimize mission performance for weapon systems across the air, land, sea, space and cyber domains.
  • Develop and apply advanced software and systems methods, theories and research techniques in the investigation, analysis and solution of complex and advanced technical problems.
  • Visualization of the battlespace at a mission or engagement level.
  • Use, develop, and modifying tools to support:
    • Data analysis of simulation or flight test results
    • Requirements analysis
Because of the need for consistent, in-person collaboration and/or the requirement to perform all work onsite due to the nature of this particular role, it will be performed fulltime on site. This means work will be conducted on location at a BAE Systems facility 100% of the time.

Required Education, Experience, & Skills
  • Typically a bachelor's degree in a technical field such as Operations Research, Engineering, Mathematics, Physics, or Computer Science and 8 years work experience, or equivalent experience
  • Experience developing and using analysis tools such as MATLAB, Python, VBA, C/C , or similar tools is required.
  • Experience in one or more of the following tools: AFSIM, ESAMS, TMAP, BRAWLER, NGTS
  • Candidate must have a Secret clearance and the ability to obtain a Top Secret DoD clearance


Preferred Education, Experience, & Skills
  • The candidate will have critical thinking skills that will be exercised across multiple levels of detail.
  • The candidate should enjoy problem solving and have the ability to produce concrete results despite significant ambiguities in the problem space.
  • Experience in multiple tools such as AFSIM, Suppressor, JIMM, BRAWLER, STK, TMAP, ESAMS, EADSIM, or EWIR is a plus, AFSIM preferred
  • Top Secret clearance is a plus


Pay Information
Full-Time Salary Range: $130355 - $221603

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 Electronic Systems
BAE Systems, Inc. is the U.S. subsidiary of BAE Systems plc, an international defense, aerospace and security company which delivers a full range of products and services for air, land and naval forces, as well as advanced electronics, security, information technology solutions and customer support services. Improving the future and protecting lives is an ambitious mission, but it’s what we do at BAE Systems. Working here means using your passion and ingenuity where it counts – defending national security with breakthrough technology, superior products, and intelligence solutions. As you develop the latest technology and defend national security, you will continually hone your skills on a team—making a big impact on a global scale. At BAE Systems, you’ll find a rewarding career that truly makes a difference. Electronic Systems (ES) is the global innovator behind BAE Systems’ game-changing defense and commercial electronics. Exploiting every electron, we push the limits of what is possible, giving our customers the edge and our employees opportunities to change the world. Our products and capabilities can be found everywhere – from the depths of the ocean to the far reaches of space. At our core are more than 14,000 highly talented Electronic Systems employees with the brightest minds in the industry, we make an impact – for our customers and the communities we serve.

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.

Salary : $130,355 - $221,603

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