Demo

Senior Principal Software Engineer

BAE Systems
BAE Systems Salary
Nashua, NH Full Time
POSTED ON 12/8/2025
AVAILABLE BEFORE 2/8/2026

Job Description
See what you’re missing. Our employees work on the world’s most advanced electronics – from detecting threats for F-35 pilots to illuminating the night for soldiers. Spanning air, land, sea, and space, we are developing the technology of tomorrow, delivered today. Drawing strength from our differences, we’re innovating for the future. And you can, too.

We are seeking talented, experienced Senior Principal Level Software engineers to help us create the world’s most advanced solutions in the area such as Electronic Warfare, Secure Communications and Networking, Radar Warning and Electronic Attack for our defense related customers. Our products provide critical mission capabilities to address the ever-evolving challenges and threats to our nation’s security and the war fighter.

You will be an integrated team member, with leadership opportunities, collaborating with Systems, Hardware, and Test engineers in one or more of the phases of Project Planning, Requirements Development, Design, Development, Integration and Testing.

You will prepare design and project documentation intended to be used within complex programs or across sets of programs in accordance with established processes.

We will provide you opportunities to learn, leverage our current technologies, incorporate new technologies, and be a leader in our engineering organization.

We put our customers first – exemplified by our mission: “We Protect Those Who Protect Us®.”

Job Responsibilities

• Opportunities are available as a technical lead on the program where you will mentor your team and present the technical design at technical interchange meetings with the customer.
• Duties include analyzing, designing, coding and code modification (typically in C ) of complex software designs for simple systems or subsystems or subsystems of larger systems.
• Evaluate complex software designs to identify design flaws.
• Establish communication to keep management informed of the function’s progress and results.
• Use existing processes and evolve processes to utilize the most effective new techniques as they become available, assuring the use of methodologies which minimize both design cost and product cost.
• Provide, directly or indirectly, top level technical leadership for the assigned design discipline(s) including selection and exploitation of promising new technologies, long-term goals, etc.
• Ensure effective communication among engineers, management and all other participants in the architecture and design process.

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.

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 take pride in important work-life balance initiatives including every other Friday Off, Flextime, and Telecommuting. 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.



Required Education, Experience, & Skills
  • Open architecture SW development experience
  • Bachelors degree in a STEM field and 8 years of professional, related experience
  • Extensive background in software development in C
  • Software development experience in a Linux environment
  • Experience with software and systems engineering processes, methodologies, and tools
  • Ability to develop, lead, and motivate technical teams
  • Motivated individual with strong problem-solving abilities
  • Effective communication skills (both verbal and written)
  • Active Secret Clearance (active within the past two years)


Preferred Education, Experience, & Skills
  • DoD Top Secret or higher level clearance (active within the past two years)
  • Real-time embedded development
  • Working knowledge of military systems and designs
  • Master's Degree in Computer Science or Computer Engineering


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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