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RTX · 1 month ago

2026 Intern - Software Engineer Intern - Onsite (MA)

MA801: Marlborough, MA 1001 Boston Post Road Building 2, Marlborough, MA, 01752 USA

Internship

Hybrid

Intern

$37K/yr - $82K/yr

Start in 2026 Summer

RTX is a company dedicated to helping the nation and allies defend freedoms and deter aggression. They are seeking a Software Engineer Intern to assist in the development and testing of software applications for complex systems, providing an opportunity to learn advanced software engineering practices and work within a fast-paced agile team.

AerospaceManufacturingSecuritySensorTelecommunications

No H1B

Security Clearance Required

U.S. Citizen Only

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

Qualification

CC++JavaObject-oriented designDigital signal processingMachine LearningCyber SecurityInterpersonal skillsCommunication skillsTeamwork

Required

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

Preferred

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

Benefits

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

Holidays

Company

RTX

Glassdoor3.8

RTX is comprised of three market-leading businesses – Collins Aerospace, Pratt & Whitney and Raytheon – working as one to answer the biggest questions and solve the hardest problems in aerospace and defense.

Founded in 1922