Senior Systems Engineer - C5I

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

Job Description:

Date Posted: 2026-03-02 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: Secret - Current 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. Are you ready to join a dynamic, comprehensive, and growing professional organization? The Systems Engineering (SE) Long Range Radars (LRR) department is seeking a Senior Systems Engineer to contribute to concept development, architectural design, requirements generation and flow-down, modeling and simulation, systems analysis, integration, testing, and evaluation of world-class Missile Defense and Sensor Systems. In this role, you will support the technical development and sustainment of the C5I product line, working on command-and-control systems. You will collaborate with a multidisciplinary team to define system requirements, design architectures and algorithms, and work closely with software development teams and onsite field support to ensure successful implementation. We value various skills and experience, so don't hold back. Your qualifications could add tremendous value to our team. Our customers come from all different backgrounds, and so do our employees. If you're passionate about what you could accomplish here, we'd love to hear from you! What You Will Do In this role, you will collaborate across disciplines and partner with Scrum teams to implement solutions, gaining exposure to every aspect of the system while directly contributing to its success. Key responsibilities include: Developing and supporting system architecture design and implementation. Defining, documenting, and managing system requirements. Creating and maintaining Interface Design Documentation. Monitoring existing systems to identify bottlenecks, performing root cause analysis, and implementing improvements. Analyzing data for operations center hardware, software, and simulations. Using data analysis results to support issue identification and resolution. Collaborating across engineering functions to drive performance and resolve technical challenges. Assessing radar system performance data with respect to requirements. Identifying performance deficiencies and proposing innovative solutions. Presenting plans, designs, and system performance assessments to peers, internal leadership, and external customers. Providing subject matter expertise to agile software development teams to ensure proper implementation of requirements. This position will be on site in Tewksbury, MA. Qualifications You Must Have Typically requires Bachelor’s in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 5 years of prior relevant experience. Experience with Requirements Analysis and/or Management using DOORS. Experience with Systems Engineering processes. Experience developing, documenting, and maintaining processes, methods and/or tools. Qualifications We Prefer Strong analytical, technical, and problem-solving skills. Experience interfacing with internal and external customers and delivering technical solutions to complex problems. Knowledge of complex command-and-control systems involving multiple sensors and effectors. Familiarity with Link-16 networking and interfaces. Experience with scripting languages such as Python, Ruby, or PowerShell. Effective communication and presentation skills, with the ability to convey technical concepts to various audiences. 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 Eligibility– 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. 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, Petaluma , Senior Systems Engineer - C5I, Engineering , Concord, California