Principal Signal Processing/Controls Engineer (Onsite)

Date Posted: 2026-05-13 • Location: Cambridge, Massachusetts (US-MA-CAMBRIDGE‑BBN01) • Onsite • U.S. citizenship required. Secret security clearance required prior to start. Position: Research Engineer – Physical Sciences and Systems. What You Will Do Develop structural dynamic and acoustic models and related signal processing schemes. Perform data analysis, including spectral processing and transfer function analysis, and data-driven simulations. Develop control systems and architectures to influence performance of physical systems. Support real‑time implementation and evaluation of designs in realistic mission scenarios. Develop sophisticated detection and classification algorithms against state-of-the-art threats. Develop prototype proof‑of‑concept systems addressing client challenges. Plan, direct, and coordinate tasks or small projects involving multiple individuals. Participate in business development by contributing to proposals and white papers and making effective presentations to customers. Potential overnight travel for off‑site testing. Qualifications – Must Have Degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 8 years of prior relevant experience, or an advanced degree in a related field with minimum 5 years of experience. Active, transferable, secret U.S. government‑issued security clearance required prior to start. Demonstrable knowledge in physics and physical systems, dynamics, control theory, and signal processing. Experience developing signal processing algorithms and implementing physics-based models in MATLAB/Simulink. Hands‑on experience with experimental equipment to collect and analyze data sets. Preferred Qualifications Experience developing and validating simulation models for physical systems. Programming experience in Python, C, and C++. Familiarity with laboratory equipment such as sensors, actuators, analyzers, data acquisition, and real‑time platforms. Benefits We offer a robust total rewards package, including competitive compensation, health, wellness, retirement, and work/life benefits. Additional benefits include parental leave (including paternal), flexible work schedules, achievement awards, educational assistance, and child/adult backup care. Location & Compensation Onsite in Cambridge, Massachusetts. Salary range: $107,500 – $204,500 per year. The salary reflects experience level and role responsibilities. Equal Opportunity Employer 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. #J-18808-Ljbffr Prattwhitney