Principal Signals Software Engineer (Onsite)

Company: RTX
Location: State College
Posted on: April 2, 2026

Job Description:

Date Posted: 2026-02-03 Country: United States of America Location: US-PA-STATE COLLEGE-5A ~ 302 Science Park Rd ~ BLDG 5A 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: TS/SCI with Polygraph 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. In the Principal Signals Software Engineering role, you will design, develop, optimize, and test systems using models to successfully satisfy the customer mission for our satellite ground systems team. We are currently looking for a highly skilled and motivated Signals Software Engineer with a focus on radio frequencies, Fourier, and digital signals processing to join our Satellite Ground System Team. This is an onsite position in either State College, PA, Ft. Meade, MD, or Aurora, CO. What You Will Do Design, develop and modify software systems, using scientific analysis and mathematical models to predict and measure outcome and consequences of design. Collaborate with the engineering team to integrate signal processing software with satellite ground systems. Develop and implement algorithms for signal processing, including Fourier transforms, digital signal processing, and RF signal processing. Analyze and optimize signal processing algorithms for improved performance. Troubleshoot and resolve issues related to signal processing software. Lead one or more software development teams and ensure the work is completed in accordance with the constraints of the software development process being used on any project. Follow established Software processes and procedures, development, documentation and maintenance/management of operations concepts and requirements. Qualifications You Must Have Active and transferable TS/SCI with Polygraph U.S. government issued security clearance prior to start date with the adjudication date less than three years ago from your starting date for this position. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance. Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of eight (8) years of prior relevant experience unless. Experience as a Signals Software Engineer (SSWE) or equivalent on a project with a focus on Radio Frequency (RF) to include experience with Fourier transforms, filtering, communications theory, digital modulation, error control coding, signals analysis tools (e.g., Wigner-Ville transform (WVT), DVT), and digital signal processing (e.g., adaptive beamforming/ filtering, demodulation). Qualifications We Prefer Experience with software defined radio architectures. Experience in programming languages such as Java, C, C++, and Python. Experience with satellite communication systems and ground systems. Experience with commercial wireless standards Experience with geolocation techniques Experience with software configuration management Experience with Python and Matlab. What We Offer Whether you’re just starting out on your career journey or are an experienced professional, we offer a total rewards package that goes above and beyond with compensation; healthcare, wellness, retirement, and work/life benefits; career development and recognition programs. Some of the benefits we offer include parental (including paternal) leave, flexible work schedules, achievement awards, educational assistance, and child/adult backup care. Relocation Eligibility - Relocation assistance is available. 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 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 State College, PA: https://careers.rtx.com/global/en/raytheon-state-college,-pa-location DMV: https://careers.rtx.com/global/en/raytheon-dmv-location Aurora, CO: Aurora, CO: https://careers.rtx.com/global/en/raytheon-aurora-co-location We Are RTX RTX Corporation 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 Systems, Pratt & Whitney, and Raytheon. Its 185,000 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, VA. 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

Keywords: RTX, Altoona , Principal Signals Software Engineer (Onsite), IT / Software / Systems , State College, Pennsylvania