Principal Systems Engineer (ONSITE)

About the role

• Date Posted: 2026-11-12
• Country: United States of America
• Location: US-MA-MARLBOROUGH-MA3 ~ 1001 Boston Post Rd ~ BLDG 3
• 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 seeking an experienced Principal Systems Engineer to join the Multi-Domain Solutions Systems Engineering Team supporting the Air Traffic Navigation, Integration, and Coordination System (ATNAVICS) program.

The selected candidate will play a key role across multiple ATNAVICS contracts, including sustainment efforts for the U.S. military and production activities for an international customer. This role offers a unique opportunity to support the development, integration, and sustainment of mission-critical aviation navigation systems serving both domestic and international needs.

The ideal candidate is comfortable leading front- and back-end systems engineering activities, including verification planning, test development, procedure writing, test execution, documentation, and systems integration. This position requires someone who can take initiative, lead technical activities, mentor others, and work hands-on in both lab and field environments.

What You Will Do

• Lead systems engineering tasks, including task planning, estimation, product ownership, metric collection, and cost account management
• Define, develop, and manage system requirements, interface definitions, and verification/validation artifacts
• Support operations concept development and procedure planning in collaboration with cross-functional teams
• Develop and execute test plans, integration procedures, verification documentation, and test activities
• Address customer issues by developing system- and product-level requirements to ensure compliant solutions
• Perform sustainment activities for legacy radar systems, including troubleshooting, documentation, and testing
• Communicate effectively with team members and the Integrated Product Team Leader (IPTL)
• Collaborate with multidisciplinary engineering teams to ensure system functionality and integration
• Travel up to 25% to support mission execution at RTX facilities, test ranges, vendor sites, and customer locations
• Mentor junior engineers in systems engineering practices

Qualifications You Must Have

• Experience in systems integration and qualification activities, including requirements analysis, procedure and test development, test execution, and results evaluation
• Experience with digital engineering tools such as DOORS, Cameo, and Microsoft Office Suite
• Experience developing technical documentation and managing small projects
• Experience working with radio, radar, or secondary radar systems
• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 8 years prior relevant experience or an Advanced Degree in a related field and minimum 5 years of experience

Qualifications We Prefer

• Experience leading or managing technical projects
• Experience supporting proposals or developing Bases of Estimate
• Experience with primary and secondary radar systems
• Active U.S. SECRET Security Clearance
• Strong analytical, communication, and problem-solving abilities
• Ability to perform effectively in a fast-paced environment with time-critical requirements

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 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.