Principal Software Engineer

Company: RTX
Location: Westford
Posted on: April 1, 2026

Job Description:

Date Posted: 2026-03-18 Country: United States of America Location: US-MA-WESTFORD-WFD7 ~ 7 Technology Park Dr ~ BLDG 7 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required.? U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance Security Clearance Type: DoD Clearance: Top Secret Security Clearance Status: Active and existing security clearance required after day 1 At Raytheon, the foundation of everything we do is rooted in our values and a higher calling – to help our nation and allies defend freedoms and deter aggression. We bring the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. Our team solves tough, meaningful problems that create a safer, more secure world. Raytheon is a world leader in high altitude imaging sensors. As such, we in the Advanced Product Solutions department provide the United States Government and International Partners with remote sensing systems, for time critical intelligence, surveillance, and reconnaissance (ISR) operations. Our ISR Information and Intelligence Engineering group develops algorithms and software for processing, optimizing, and creating intelligence products from these sensors. We are seeking a Principal Software Engineer to work on our team. As a team member, you will be working on state-of-the-art imaging systems with some of the most advanced capabilities available. This is a great opportunity to contribute to technologies that truly make a difference. We look forward to having you on the team. Applicants should have experience leading projects or developing maintainable processes. https://www.collinsaerospace.com/what-we-do/industries/military-and-defense/intelligence-surveillance reconnaissance/multispectral-imaging What You Will Do Perform software development within an Agile Software Development group. Provide mentorship and technical insight into new software components. Provide direct support of program efforts and proposal activities. Develop software in multiple languages, including but not limited to C++, Java, Python, or Typescript. Design and develop high performance software in a dynamic environment. This 1st shift role will be 100% on-site and based in Westford, MA. Qualifications You Must Have Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior work experience. Experience with C++ and/or Java development with a focus on application scalability and performance. Experience interacting with customers (internal or external), suppliers, and/or other organizations / disciplines. The ability to obtain and maintain a U.S. government issued Top Secret security clearance post-start is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance. Qualifications We Prefer BS degree in Software Engineering or a related major is HIGHLY PREFERRED. Experience with Docker or Kubernetes. Experience with Machine Learning concepts. Experience with GPU Programming. Experience with web development. Ability and desire to facilitate team growth and knowledge transfer. Experience with estimating software tasks for extended periods of time (i.e. longer than 12 months). What We Offer Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation. Relocation assistance is not available for this position. Learn More & Apply Now! Please consider the following role type definition as you apply for this role. Onsite: Employees who are working in Onsite roles will work primarily onsite. Clearance Information: This position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA CAS), an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: https://www.state.gov/m/ds/clearances/c10978.htm As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote. The salary range for this role is 107,500 USD - 204,500 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills. Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement. Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance. This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply. RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window. RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act. Privacy Policy and Terms: Click on this link to read the Policy and Terms

Keywords: RTX, Arlington , Principal Software Engineer, IT / Software / Systems , Westford, Massachusetts