Receiver, Exciter, & Processing Architecture Software Engineer Intern (Summer 2027) - Onsite

RTX; Sudbury (MA); On-site; USD 37,000 - 82,000; Full time

Benefits offered by this job

Medical insurance

401(k) match

Paid time off

Job summary

RTX's Receiver Exciter and Processing Architecture Department seeks a Software Engineer intern or early-career professional to join a Linux-based signal processing team. You will implement and test C++ algorithms, participate in system integration, and collaborate with hardware and software engineers to meet end-user requirements.

You will gain hands-on experience with embedded software, Linux tooling, and CI pipelines while contributing to performance analysis and code quality in a fast-paced

Qualifications

• Must be pursuing a Bachelor’s or graduate degree in Electrical Engineering or related STEM major.
• Must have a Minimum of 30 hours of credit by the start of the internship session.
• Experience using Linux C++ software development experience.

Responsibilities

• Perform system integration activities on distributed heterogenous signal processing systems running Linux.
• Code, test, and integrate C++ embedded and/or real-time signal processing algorithms or control functions.
• Defect resolution and code maintenance/updating of existing codebases.
• Analyze numerical accuracy, runtime latency, and other system metrics.
• Collaborate with systems, hardware, and other software engineers to understand and implement end-user requirements.
• Maintain high code quality by supporting code reviews, static analysis, continuous integration.

Skills

Linux

C++

Embedded

Education

Bachelor’s or graduate degree in Electrical Engineering or related STEM major

Tools

Git

CMake

GoogleTest

gdb

profilers

Jira

Jenkins

UML

Job description

Date Posted: 2026-10-27 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

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.

This is your opportunity to join the Receiver Exciter and Processing Architecture Department as a Software Engineer.

What You Will Do:

• Perform system integration activities on distributed heterogenous signal processing systems running Linux.
• Code, test, and integrate C++ embedded and/or real-time signal processing algorithms or control functions.
• Defect resolution and code maintenance/updating of existing codebases.
• Analyze numerical accuracy, runtime latency, and other system metrics.
• Collaborate with systems, hardware, and other software engineers to understand and implement end-user requirements.
• Maintain high code quality by supporting code reviews, static analysis, continuous integration.

Qualifications You Must Have:

• Must be pursuing a Bachelor’s or graduate degree in Electrical Engineering or related Science, Technology, Engineering or Mathematics (STEM) major.
• Must have a Minimum of 30 hours of credit by the start of the internship session
• Experience using Linux C++ software development experience *Experience may be obtained through on-the-job experience, research, coursework, or projects

Qualifications We Prefer:

• Experience with developer tools (Git, CMake, GoogleTest, gdb, profilers, Jira, Jenkins, UML).
• Embedded software development experience.
• Object-Oriented Analysis and Design (OOAD)
• Experience with scripting (Python, shell, bash).

What We Offer:

Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation.

• 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.
• 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.
• 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.

The salary range for this role is 37,000 USD - 82,000 USD. The salary range provided is a good faith estimate representative of all experience levels.

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:
RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.

Relocation Eligibility

Please consider the following role type definition as you apply for 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. 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.