Digital Signal Processing; DSP Senior Software Engineer

Role Overview

At RTX, the world’s largest aerospace and defense company, 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 high‑performance platforms – including CPUs and GPUs, on COTS and semi‑custom hardware for next generation radar systems.

This role will be 100% on-site in Marlborough, Massachusetts. You will work across the software development life cycle on software in C++, C, and other languages, supporting multiple programs and multiple platforms within a software product line.

• 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 maintenance and updating of existing codebases.
• Analyze numerical accuracy and runtime latency.
• Assist and participate in requirements, design, development and testing of real‑time DSP embedded software, application software, and tools, including 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.

• 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.

• 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, Dev Ops and test automation.
• Experience with developer tools (Git, CMake, Google Test, 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 and with colleagues who represent multiple work and conflict resolution styles.

• Salary range: 86,800 USD – 165,200 USD.
• Relocation eligible.
• 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.
• Eligibility for annual short‑term and/or long‑term incentive compensation programs, depending on level and agreement.

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.