RTX

aerospace and defense

SeniorSoftwareEngineer-C++

$87–165k Marlborough, Massachusetts, United States FULL TIME
Market Sentiment
HIGH DEMAND

Neural analysis suggests this role is
optimal for Senior candidates.

The Brief

“Senior Software Engineer - C++ at RTX. Skills: C++, Linux, real-time signal processing. Code, test, and integrate C++ real-time signal processing algorithms or control functions for sensor systems on Linux. Defect resolution and code maintenance/updating of existing codebases”

Industry & Context.

aerospace and defense
Problems you'll solve

numerical accuracy analysis; runtime latency analysis

Eligibility Requirements

The ability to obtain and maintain a U. S. government issued security clearance is required, U. S. citizenship is required, DoD Clearance: Secret, Active and existing security clearance required after day 1, 100% on-site

What They're Looking For.

Must Have

C++ software development experience in Linux environments, Experience with networking concepts and protocols, Experience with Object-Oriented Analysis / Design, The ability to obtain and maintain a U. S. government issued security clearance is required, U. S. citizenship is required

Nice to Have

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 You'll Do.

and integrate C++ real-time signal processing algorithms or control functions for sensor systems on Linux

Defect resolution and code maintenance/updating of existing codebases

Analyze numerical accuracy and runtime latency

Maintain high code quality by supporting code reviews

continuous integration

How You'll Work.

Team & Collaboration

Collaborate with systems, hardware, and other software engineers to understand and implement end-user requirements

Full Job Description

**Date Posted:** 2026-05-13 **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 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 Senior Software Engineer. 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:** * Code, test, and integrate C++ real-time signal processing algorithms or control functions for sensor systems on Linux. * Defect resolution and code maintenance/updating of existing codebases. * Analyze numerical accuracy and run

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