Senior Software Developer (C/C++/Ada)

Company: RTX
Location: Concord
Posted on: April 1, 2026

Job Description:

Date Posted: 2026-03-16 Country: United States of America Location: US-MA-TEWKSBURY-TB3 ~ 50 Apple Hill Dr ~ CONCORD BLDG, Tewksbury Tb3 300 Concord 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: Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date 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. We are seeking a highly motivated and detail-oriented Senior Software Developer to design, develop, test, and integrate software solutions supporting the Patriot System Maintenance Control and Diagnostics Team. This role goes beyond traditional software development — it requires a strong interest in understanding how complex hardware subsystems interact and translating that knowledge into intelligent diagnostic and calibration software . This position is responsible for developing software that assesses system health, performs calibration verification, detects and isolates faults, and provides actionable corrective guidance to end users to restore operational readiness. You will work onsite in software development and lab environments, collaborating closely with hardware, systems, and integration engineers. Opportunities exist to support system testing and field integration activities. Occasional travel may be required. What You Will Do Perform requirements analysis to define software features and functionality in alignment with system needs. Design, develop, and maintain non-real-time diagnostic software for Patriot system maintenance. Execute and document software testing, including unit testing, integration testing, and validation, to ensure software reliability and performance. Document software designs, development processes, and test results for internal and external stakeholders. Ensure compliance with software development standards, security protocols, and industry regulations. Light travel and off hours testing (2nd or 3rd shift) may occasionally be required. 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 in requirements analysis, software design, coding, testing, and integration. Proficiency in developing complex solutions and applications using Ada, C/C++, Java or other object-oriented programming language. The ability to obtain and maintain an interim secret U.S. security clearance prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance. Qualifications We Prefer Active Secret security clearance. Experience in aerospace, defense, or related industries. Familiarity with software development tools and methodologies (e.g., Agile, Git, Jenkins). Knowledge of radar systems or similar complex systems. Experience with software integration in complex systems. Knowledge of diagnostic software, predictive maintenance techniques, and data visualization tools. Strong analytical and problem-solving skills, particularly in data analysis and algorithm development. 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 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 CAS), 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 This position is in Tewksbury, Massachusetts. Living in Massachusetts means you’ll have easy access to the ocean and locations of historical significance. You can enjoy varied outdoor activities ranging from hiking and camping to cross-country skiing and snowmobiling. Massachusetts is recognized as one of the best states to call “home.” 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. Privacy Policy and Terms: Click on this link to read the Policy and Terms

Keywords: RTX, Fremont , Senior Software Developer (C/C++/Ada), IT / Software / Systems , Concord, California