Principal Software Engineer - DSP

Date Posted:

2026-03-19

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:

Active and transferable U.S. government issued security clearance is required prior to start date.​ 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 on day 1

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 (REPA) Department as a Principle 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 deployed on land and sea. This position is intended to split time between Linux system administration of these platforms and supporting testing of specialized hardware. The ideal candidate has some software development education or experience.

What You Will Do:

• Develop realtime C++ and/or Cuda implementations of signal processing algorithms or control functions for sensor systems running on a distibuted Linux backend.

• Work with systems, hardware, and software engineers to understand and implement end-user requirements.

• Write unit tests and integration tests to satisfy requirements.

• Analyze numerical correctness and runtime latency.

• Maintain high code quality by supporting code reviews and continuous integration.

• This 1st shift role will be 100% onsite and based in Marlborough, MA.

Qualifications You Must Have:

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience.

• C++ software development experience in Linux environments.

• Experience developing multithreaded or concurrent distributed code.

• Active and transferable U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Qualifications We Value:

• Mathematics experience in the area of complex variables and linear algebra.

• Experience developing GPU software - particularly with Nvidia Cuda - is highly desirable.

• Realtime software development experience.

• Experience with numerical libraries such as MKL, FFTW, BLAS, LAPACK, and ARM PL.

• Experience with developer tools (Git, Cmake, Googletest, gdb, profiler, Jenkins, Jira).

• Experience with scripting (Python, shell, bash).

• Experience with Agile methodologies (Scrum, Kanban).

• 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.

• This position offers relocation based on candidate eligibility.

Learn More & Apply Now!

• 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.

• Clearance Information: This position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA CAS), an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: https://www.state.gov/m/ds/clearances/c10978.htm

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the inter