Intern System Engineer- (Onsite)

About this role

Date Posted: 2026-08-17

 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: Active and transferable U.S. government issued security clearance is required prior to start date.​ 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 on day 1

Are you ready to explore the world of aerospace and defense? Do you want to learn from and collaborate with some of the greatest minds in the industry? At RTX, our internships, co-ops and full-time careers provide an exceptional foundation to work on complex problems, advance your skills and create a safer, more connected world. Discover opportunities to make a difference at RTX. At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. 

Raytheon brings 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. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.

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. 

The Systems Engineering and Test Capabilities (SETC) Engineering Discipline is an exciting and challenging environment where you will have the opportunity to design, develop and test to shape innovative solutions for our customers. Join our organization and experience the Systems V engineering life cycle while interfacing with a variety of engineering disciplines, subject matter experts, chief engineers, chief technologists, the customer, and so many more to ensure we design, integrate, test and strengthen our systems to work the first time and every time for our warfighters! In this role, you will have the opportunity to work on an effectors project pertinent to the systems lifecycle.  This role is 100% on-site at our campus in Marlborough, MA.

This position can be a Sophomore, Junior, Senior, or Post Graduate Technical Intern based on the candidate's qualifications and standing as outlined below: (Sophomore Technical Intern) - must be enrolled in a Bachelor’s degree program and classified as a sophomore by start of internship (Junior Technical Intern) - must be enrolled in a Bachelor’s degree program and classified as a Junior by start of internship

(Senior Technical Intern) - must be enrolled in a Bachelor’s degree program and classified as a Senior by start of internship

(Post-Graduate Technical Intern) - must have an undergraduate degree and be enrolled in a graduate degree program (in degree fields listed in Qualifications You Must Have) by start of internship

What You Will Do • In this role, you will support the following types of activities: • Core Systems Engineering: Update, develop, maintain, and improve requirements, concepts of operations, and define system interfaces. • Testing Efforts: Develop and implement test plans, procedures, integration, and verification documentation in both simulated and real-world environments and perform/execute the testing • Troubleshoot and Analyze: Identify and resolve hardware, software, and system issues through detailed data analysis and debugging. • Drive Performance: Collaborate across functions to drive performance improvements and resolve system issues. • Integrate Systems: Integrate hardware and software into tactical systems, evaluating their functionality and impact. • Decision analysis & Resolution: Conduct trade studies and present results to stakeholders. • Collaborate and work with disciplinary team to achieve seamless integration and system functionality. • Document and Communicate: Develop integration documentation, execute plans, analyze data, verify requirements and effectively communicate results to leadership and stakeholders. • Perform Data Analysis: Conduct statistical and numerical analysis test data to ensure optimal system performance and verify requirements. • Present Findings: Present technical findings and solutions to leadership and customers. • Support Missions: Travel as needed to support mission execution at various locations including local RTX facilities, test sites, vendor facilities, and customer locations.

Qualifications You Must Have • This position is for an intern who is enrolled in a Bachelor’s (or higher) Science, Technology, Engineering, or Mathematics (STEM) degree program and will be at minimum, entering their sophomore year by the start of summer 2026 • Experience with systems software, systems hardware, systems requirements, systems integration, and/or systems test.

Qualifications We Prefer • Experience in the Defense Industry, and specifically with military systems; tactics, techniques, and procedures, as well as Department of Defense customer infrastructure experience. • Experience with DOORS, Rhapsody, Cameo, or other digital engineering tools. • Experience with model-based engineering and associated tools • Experience in devel

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