Senior Principal Systems Engineer (ONSITE)

Date Posted: 2026-09-18 Country: United States of America Location: US-MA-MARLBOROUGH-MA2 ~ 1001 Boston Post Rd ~ BLDG 2 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: Secret Security Clearance Status: Active and existing security clearance required after day 1 Raytheon Company, Managed by Collins Aerospace Collins Aerospace, an RTX company, is a leader in technologically advanced and intelligent solutions for the global aerospace and defense industry. Collins Aerospace has the capabilities, comprehensive portfolio, and expertise to solve customers' toughest challenges and to meet the demands of a rapidly evolving global market. The Strategic Communications Team is seeking an experienced Senior Principal Systems Engineer in a role committed to creating creative and cost-effective solutions for our ground and airborne systems. As part of Collins Aerospace, Mission Systems organization, we specialize in developing advanced communication systems, ground and flight computers, sensors, cyber and software solutions, as well as providing integration of Mission Systems. As part of the PCS Department, the Systems Engineering department supports a variety of communications systems including SATCOM (including AEHF, EHF, X-Band, Ka-Band, Ku-Band, C-Band, and PTW), Line-of-Site (LOS) Radio Terminals and Secure Switching Networks. What You Will Do

• Oversee the development of full lifecycle solutions from CONOPS to Validation
• Act as a Subject Matter Expert within discipline with advanced to expert knowledge of work area
• Oversee and perform lab activities including definition, setup, configuration management, and testing
• Ensure Modeling, Hardware, and Software Interfaces utilize a scalable ontology
• Oversee and support the Integration of Solutions within their target environment
• Coach, review, and delegate work of lower-level professional
• Contribute to the development of goals of the discipline and planning efforts (Cost and Schedule)
• Influence others regarding policies, practices, and procedures
• Manage moderately sized projects or processes
• Manage the entrance and exit criteria of Design Reviews, Integration, Dry Run, and Formal Qualification Testing
• Review, moderate and document major changes in systems or processes to solve difficult and often complex problems
• Analyze and document system behaviors
• Support system trade studies, requirements analysis, allocation to subsystems

Qualifications You Must Have

• Strong integration and test experience including test procedure development, test execution, test reporting, and test automation
• Knowledge of or application of Earned Value Management System (EVMS)
• Proficient in tooling to include Microsoft products, or tasking boards (Jira, IBM EWM, etc.)
• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum of 10 years prior relevant experience or an Advanced Degree in a related field and minimum 7 years of experience

Qualifications We Prefer

• Experience in Communication Radio and Systems: SATCOM, LOS/BLOS, AEHF, PTW, or V/UHF
• Experience in Environmental Qualification Testing (EQT)
• Proficient in tooling to include CAMEO, Rhapsody
• Experience in proposal support including writing Basis of Estimates (BOEs)
• Experience in System Level Integration, Verification, and Validation (IV&V) for ground based, ship, submarine, or airborne platforms
• Experience in Virtual Machine design and deployment
• Excellent communication skills (written, verbal, and presentation) and ability to effectively communicate with IPT leaders, hardware and software development engineers, specialty engineers, program managers, and our customers

What We Offer

• Medical, dental, and vision insurance
• Three weeks of vacation for newly hired employees
• Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option
• Tuition reimbursement program
• Student Loan Repayment Program
• Life insurance and disability coverage
• Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection
• Birth, adoption, parental leave benefits
• Carrot Health to hormonal health, fertility, and family planning
• Adoption Assistance
• Autism Benefit
• Employee Assistance Plan, including up to 10 free counseling sessions
• Healthy You Incentives, wellness rewards program
• Doctor on Demand, virtual doctor visits
• Bright Horizons, child and elder care services
• Teladoc Medical Experts, second opinion program
• This position is eligible for relocation assistance
• And more!

Learn More & Apply Now! Do you want to be a part of something bigger? A team whose impact stretches across the world, and even beyond? At Collins Aerospace, our Mission Systems team helps civilian, military and government customers complete their most complex missions - whatever and wherever they may be. Our customers depend on us for intelligent and secure communications, missionized systems for specialized aircraft and spacecraft and collaborative space solutions. By joining our team, you'll have your own critical part to play in ensuring our customer succeeds today while anticipating their needs for tomorrow. Are you up for the challenge? Join our mission today. *Please ensure the role type (defined below) is appropriate for your needs before applying to this role. ONSITE: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products. At Collins, the paths we pave together lead to limitless possibility. And the bonds we form - with our customers and with each other -- propel us all higher, again and again. Apply now and be part of the team that's redefining aerospace, every day. Employee Referral Eligible

#MISENG

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 132,400 USD - 251,600 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 Collins Aerospace