2026 Intern - Software Engineer Intern - Onsite (MA)

RTX•Marlborough, MA

1d•$37,000 - $82,000•Onsite

About The Position

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. 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. The Software organization develops software applications, including integration and test on missiles, launchers, radars, naval systems, fire control and other complex systems. Our precision software and firmware integrate operating systems, device drivers, networking, and control software to bring together sensors, guidance, and flight control processing features to complete the mission. The Software org is made up of several Centers located across the country, responsible for all aspects of the software development lifecycle. Our 4000+ software engineers design, develop, and build innovative solutions for our customers. Join our fast-paced agile teams on the leading edge of technology. Our engineers design, develop, and build innovative solutions for the U.S. Government. Experience all aspects of a software development life cycle as a member of a fast-paced agile team on the leading edge of: Real-time systems design Digital signal processing Machine Learning and Autonomous Systems Cyber Security DevOps technologies and methods We encourage curious, creative problem solvers to join our team of bright, dedicated software craftspeople in designing and implementing highly innovative systems. You will learn advanced software engineering practices and apply new technologies to develop next generation capabilities and help keep our country safe. This position is on-site in Marlborough Massachusetts.

Requirements

This position is for an intern who is enrolled in a Bachelor’s (or higher) degree program in Science, Technology, Engineering or Mathematics (STEM) and will be at minimum Junior, Senior or Post Grad year by summer 2026.
Experience with C, C++, or Java.
The ability to obtain and maintain a U.S. security interim clearance prior to the start date.
U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Nice To Haves

Knowledge of C/C++ programming, structured programming concepts.
Knowledge of object-oriented design and Unified Model Language.
Knowledge of statistical and numerical methods.
Interpersonal and communication skills, both verbal and written.
ABET is the preferred, although not required, accreditation standard.
3.0 cumulative GPA desired.
Demonstrated ability to work effectively with colleagues and leaders in a team environment.

Responsibilities

Assist and participate in the requirements, design, development and testing of application software, and tools, to include development of new work products or enhancement of existing applications and systems.
Design, code, test, integrate, and document software solutions.
Participate in internal review of software components and systems.
Collaborate with project managers and other professionals within Engineering.
Work on problems with defined scope, schedule, and expectations.
Follow established development practices and processes to maintain the configuration management of software products.