Digital Signal Processing (DSP) Senior Software Engineer

Date Posted:

2026-06-11



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 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.

We are seeking Senior Software Engineers to join our Digital Signal Processing (DSP) development team in Marlborough, Massachusetts. The team’s primary goal is to design, architect, and implement signal processing algorithms on a variety of high-performance processing platforms – including CPUs and GPUs, on COTS and semi-custom hardware platforms for next generation radar systems.

The Digital Signal Processing (DSP) team develops software in a variety of languages including C++, C, and several others. Candidates can expect to work on many if not all phases of the software development life cycle. In this position, you will be responsible for providing practical solutions to difficult technical software problems. You can expect to support multiple programs and multiple platforms within a software product line. Software Engineering positions include working on a variety of different tasks including real-time software development, application software development, test and verification, data analysis, software tools development, and many others.

This role will be 100% on-site in Marlborough, Massachusetts.

What You Will Do

• Design, Code, test, integrate and document C++/C real-time Digital signal processing (DSP) algorithms or control functions for sensor systems on Linux environments.

• Defect resolution and code maintenance/updating of existing codebases.

• Analyze numerical accuracy and runtime latency.

• Assist and participate in the requirements, design, development and testing of real-time DSP embedded software, application software, and tools, to include development of new work products or enhancement of existing applications and systems.

• Maintain high code quality by supporting code reviews, static analysis, continuous integration.

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

• Participate in internal review of software components and systems.

• Collaborate with project managers and other professionals within Engineering.

• Follow established development practices and processes to maintain the configuration management of software products.

Qualifications You Must Have

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 5 years of prior relevant experience unless prohibited by local laws/regulations.

• Experience with C++ and C in Linux environments.

• Experience with Object-Oriented Analysis / Design.

• Active and transferable U.S. government issued Secret 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 Prefer

• Advanced degree in a related field.

• Radar or DSP knowledge.

• Realtime software development experience.

• Knowledge of data structures and algorithms, systems software design, operating systems, architectures, software development life cycle and processes.

• Experience in software development, and with Windows and Linux Operating Systems, GIT, Jira, Jenkins, Python, Perl, Bash, and Kornshell.

• Experience developing software in a team-based development environment, preferably Agile/SCRUM, DevOps and test automation.

• Experience with developer tools (Git, CMake, GoogleTest, gdb, profilers, Jenkins, UML).

• 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 developing GPU software with Nvidia Cuda.

• Experience with Matlab.

• Strong problem-solving and communication skills, including ability to produce technical documentation, and the desire to learn new technologies and tools.

• Able to travel domestic and international.

• Demonstrated ability to work effectively with coworkers.

• Demonstrated ability to work with colleagues who represent multiple work and conflict resolution styles.

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 eligible.

Learn More & Apply Now!

Please ensure the role type defined below is appropriate for your needs before applying to this role. This position is classified as:

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.

Candidates will learn more about role type and current site status throughout the recruiting process. For onsite roles, commuting to and from the assigned site is the employee’s personal responsibility.

This position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA , 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 interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

The salary range for this role is 86,800 USD - 165,200 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.

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