Principal Systems Engineer - Algorithms Integration Lead

Date Posted: 2026-06-23 Country: United States of America Location: US-AZ-TUCSON-805 ~ 1151 E Hermans Rd ~ BLDG 805 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: Top 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. The Processing, Guidance & Control (PG&C) Center is responsible for algorithm development including Guidance, Navigation, and Control; radio frequency (RF) and electro-optical/infrared (EO-IR) Signal Processing (SP); and missile-and-sensor-level Modeling and Simulation for Raytheon's broad portfolio of projects, programs, and products. In the SP Department, we design, integrate, and optimize sensor control, detection processing, tracking, and classification algorithms to meet mission objectives. We support new business initiatives and help develop & execute technology roadmaps. The Signal Processing Department within PG&C is seeking a Principal Systems Engineer - Algorithms Integration Lead for an Advanced Technology program. This is an onsite position located in Tucson, AZ. What You Will Do: You will lead a multi-disciplinary team of 8–10 engineers across software, systems integration & test, simulation, and algorithms Work with the Signal Processing (SP) and Guidance, Navigation, and Control (GNC) teams to define algorithm integration and test strategies across multiple hardware test platforms. Lead a team responsible for running integration tests and analyzing results to verify algorithm functionality and performance Design and oversee the development of test builds used to validate algorithm implementation and overall system performance Partner with Software Configuration Management (SCM) and other stakeholders to develop and improve software build and release processes Partner with Systems Engineering to write and release software requirements Design and develop the ground test software platform based on requirements from internal and external teams Lead the design, implementation, and testing of device drivers that enable SP and GNC algorithms to communicate with hardware peripherals (e.g., cameras, IMUs, and other sensors) Meet regularly with the SP and GNC development teams to ensure embedded software supports algorithm performance goals Perform timing and performance analysis across algorithms, embedded software, and device drivers to ensure the system meets performance requirements Meet regularly with functional department leads to review team performance metrics Qualifications You Must Have: Typically requires a Bachelor’s degree in Engineering, Science, Physics, Mathematics (STEM) and a minimum of 8 years of prior relevant experience Experience with EO/IR Signal Processing algorithm development and/or EO/IR analysis (background filtering, temporal filtering, thresholding/segmentation, tracking) Experience supporting hardware activities leading to test events, such as calibration and acceptance testing for sensors and devices and ensuring that the selected hardware supports test objectives Experience programming in C/C++, Python, and/or MATLAB Experience with Windriver/VxWorks development and real-time debugging on hardware Active and transferable Top Secret U.S. government issued Security Clearance is required prior to start date with the ability to obtain special program access after start. Qualifications We Prefer: Strong knowledge of Real-Time Operating Systems Knowledge of Network Programming (TCP/IP, UDP) Familiarity with Rate Monotonic Analysis (RMA) and asynchronous process timing/benchmarking Knowledge and understanding of guidance, navigation, and control fundamentals (Kalman filters, open/closed loop guidance, Direction Cosine Matrices) 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 - relocation assistance is available for this position 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. This position requires onsite work in Tucson, AZ: 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 107,500 USD - 204,500 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. Privacy Policy and Terms: Click on this link to read the Policy and Terms RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.