[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All BAE Systems jobs](https://jobs.opennash.com/companies/bae-systems/) · [Search jobs](/search/) BAE Systems · Merrimack, NH # Principal Systems Engineer - EOIR Merrimack, New Hampshire, United States Full-time Senior individual contributor Operations Listed on BAE Systems’s official careers site. Posted October 12, 2026. Check that it is still open and apply there. [Apply on BAE Systems’s careers site →](https://jobs.baesystems.com/global/en/job/BAE1US128873BREXTERNAL/Principal-Systems-Engineer-EOIR) [OpenNash Jobs](https://jobs.opennash.com/) / [BAE Systems](https://jobs.opennash.com/companies/bae-systems/) / Principal Systems Engineer - EOIR ## Job description ### Job Description Our employees work on the world’s most advanced electronics. 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. At BAE Systems, we promote a strong, collaborative culture and provide our employees with the tools, skills and training they need to succeed and grow. We are all about trust, camaraderie, and a shared ambition to lead the world in defense technologies and national security services. When you join our engineering group, you will be an integrated team member collaborating with Software, Hardware, and Test engineers in one or more of the phases of the systems engineering cycle. We offer a flexible work environment and 9/80 work schedule. Our company is part of the community and driven to improve our future and protect our freedom. We are hiring systems engineers at the individual contributor, team lead, chief engineer and technical director levels to participate in Electronic Systems development programs at any of the locations listed above. As a Systems Engineer, you will be a member of a cross-functional, multi-disciplinary team to model, design, develop, integrate, debug, test, field, and support our innovative Electronic Systems. Our products provide critical mission capabilities to address the ever-evolving threats to our nation’s security and the war fighter! In this exciting role, you will enjoy opportunities to take on diverse and challenging work assignments, flexible scheduling with every other Friday off, an inviting and supportive culture, competitive compensation, and an excellent benefits package that includes tuition reimbursement for advanced degrees. We will provide you opportunities to learn, leverage our current technologies, incorporate new technologies, and if you desire…become an expert or future technical leader in our engineering organization. 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. Required Education, Experience, & Skills Bachelor’s degree in Electrical or Systems Engineering, Computer Science or a related field; plus 6 years of work experience in Systems Engineering or Integration or a related domain. Or, some formal college and training without a Bachelor’s degree; plus 8 years of work experience in Systems Engineering or Integration or a related domain. Must possess an active Secret clearance. EO/IR Expirience Preferred Education, Experience, & Skills Bachelor’s Degree in Electrical or Systems Engineering, Computer Science or a related field Experience with Requirements Development Experience with integration and test Experience with Model Based Engineering Experience with Agile Pay Information Full-Time Salary Range: $118095 - $200762 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. ## At a glance - Posted by the employer: Oct 12, 2026 - First seen by OpenNash: Oct 13, 2026 - Last checked: Oct 13, 2026 - Listed for: 1 day - Location: Merrimack, New Hampshire, United States - Employment type: Full-time[Apply on BAE Systems’s careers site →](https://jobs.baesystems.com/global/en/job/BAE1US128873BREXTERNAL/Principal-Systems-Engineer-EOIR) ## More jobs at BAE Systems ### [EOIR Algorithm Lead (Sign-on Bonus)](https://jobs.opennash.com/companies/bae-systems/jobs/29657aadb40309ae2df8/) Merrimack, New Hampshire, United States ### [EOIR Systems Engineering Lead](https://jobs.opennash.com/companies/bae-systems/jobs/d14bfdd1c0f383813e5e/) Merrimack, New Hampshire, United States ### [Operations Program Manager II](https://jobs.opennash.com/companies/bae-systems/jobs/254174cb3bd275bb3363/) Merrimack, New Hampshire, United States ### [Business Development Portfolio Lead - EO/IR Spectral Dominance](https://jobs.opennash.com/companies/bae-systems/jobs/30bbb730afa58792875b/) Merrimack, New Hampshire, United States ### [Electrical and Mechanical Lead Hardware Development Engineer - EO/IR products (Hybrid / Sign-on Bonus)](https://jobs.opennash.com/companies/bae-systems/jobs/fc2a8b6e140f4bb5acbb/) Merrimack, New Hampshire, United States ## Similar jobs at other companies ### [Principal Quantum Engineer - Quantum Systems](https://jobs.opennash.com/companies/microsoft/jobs/b53b78e06278418a90ae/) Microsoft · United States, Washington, Redmond ### [Systems Engineer, Principal - Survivability & Nuclear Hardness](https://jobs.opennash.com/companies/lockheed-martin/jobs/af4801ff6b18729abfac/) Lockheed Martin · Littleton, CO ### [Principal Software Engineer, Distributed Systems](https://jobs.opennash.com/companies/microsoft/jobs/1b16c6498ece67525f6f/) Microsoft · United States, Washington, Redmond ### [Principal Chipset Project Engineer – Hardware PCB/Platform Systems for Personal Compute (PC)](https://jobs.opennash.com/companies/qualcomm/jobs/8496750fa2d531d5b368/) Qualcomm · San Diego, California, United States of America ### [Sr. EOIR Systems Engineering Manager](https://jobs.opennash.com/companies/heico/jobs/63485d104b2ea08d224e/) Heico · Santa Barbara, California, United States OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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