2026 Raytheon Full Time - Receiver, Exciter, & Processing Architecture Software Engineer I - Marlborough, MA (Onsite)

Prattwhitney; Sudbury (MA); On-site; USD 57,000 - 109,000; Full time

Benefits offered by this job

Relocation assistance if eligible

Onsite work

Job summary

RTX in Massachusetts is seeking a Software Engineer I to design, implement, and optimize real-time signal processing algorithms across CPUs, GPUs, and FPGAs on Linux. The role focuses on embedded software for radar systems and requires strong C/C++ skills and Linux experience.

You will collaborate with hardware, systems, and software engineers to deliver high-quality, scalable solutions. Relocation assistance is offered, and onsite work is expected in a U.S.-based role.

Qualifications

• Bachelor’s degree in Science, Technology, Engineering or Mathematics (STEM) obtained prior to start.
• C or C++ software development experience.
• OOAD experience may be obtained through on‑the‑job experience, research, coursework, or projects.
• Knowledge of networking concepts and protocols.
• Realtime software development experience.
• Experience with developer tools (Git, CMake, GoogleTest, gdb, profilers, Jenkins, UML).
• Experience with scripting (Python, shell, bash).
• Experience with Agile methodologies (Scrum).
• Experience with DPDK.
• Experience with numerical libraries such as MKL, FFTW, BLAS, LAPACK, and ARM PL.
• Experience with DDS (Distributed Data Systems).
• Experience in C++20 or newer.
• Experience with Linux device drivers.
• Experience developing GPU software with Nvidia CUDA.
• Radar or DSP knowledge.

Responsibilities

• Perform system integration activities on distributed heterogenous signal processing systems running Linux.
• Code, test, and integrate C++ 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

C/C++

Python

Linux

OOAD

Networking

Real-time

Git

CMake

GoogleTest

GDB

Jenkins

UML

CUDA

Linux device drivers

DSP

Education

Bachelor’s degree in STEM

Tools

Git

CMake

GoogleTest

GDB

Profilers

Jenkins

UML

Python

Shell

Bash

CUDA

Job description

Date Posted: 2026-10-05 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 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.

This is your opportunity to join the Receiver Exciter and Processing Architecture Department as a Software Engineer I. The team’s primary goal is to design, architect, and implement signal processing algorithms on a variety of high-performance processing platforms – including CPUs, FPGAs and GPUs, on COTS and semi-custom hardware platforms, for next generation radar systems.

What You Will Do

• Perform system integration activities on distributed heterogenous signal processing systems running Linux.
• Code, test, and integrate C++ 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

• Bachelor’s degree in Science, Technology, Engineering or Mathematics (STEM), such as Computer Engineering, obtained prior to start.
• C or C++ software development experience.
• Object-Oriented Analysis and Design (OOAD) Experience may be obtained through on‑the‑job experience, research, coursework, or projects.
• Knowledge of networking concepts and protocols.
• Realtime software development experience.
• Experience with developer tools (Git, CMake, GoogleTest, gdb, profilers, Jenkins, UML).
• Experience with scripting (Python, shell, bash).
• Experience with Agile methodologies (Scrum).
• Experience with DPDK.
• Experience with numerical libraries such as MKL, FFTW, BLAS, LAPACK, and ARM PL.
• Experience with DDS (Distributed Data Systems).
• Experience in C++20 or newer.
• Experience with Linux device drivers.
• Experience developing GPU software with Nvidia Cuda.
• Radar or DSP knowledge.

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.

Relocation assistance if eligible

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.

Salary range for this role is 57,200 USD - 108,800 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.

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.

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.