Principal Systems Engineer

Job ID: 01868414Posted: Posted YesterdayStart Date: 2026-08-20Location: US-AL-HUNTSVILLE-401 ~ 401 Jan Davis Dr NW ~ JAN DAVIS 401Country: United States of AmericaTime Type: Full timeDate Posted:2026-08-20 Country:United States of America Location:US-AL-HUNTSVILLE-401 ~ 401 Jan Davis Dr NW ~ JAN DAVIS 401 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: Active and existing security clearance required on day 1At 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. The Multidisciplinary Integrated Systems Department (MISD) supports Raytheon by providing world class technical expertise and engineering leadership to drive the design and development of world-class Air and Missile Defense Systems, Sensors, and Effectors. We lead all aspects of Systems Engineering that drive the development of complex systems to support Raytheon’s Land and Air Defense Systems business area from our Huntsville, AL location. Our Systems Engineers solve technical challenges at the System of System (SoS), System, Subsystem, and Component levels. Key technical domains include: Architecture, Requirements, Interface Definition, Modeling & Simulation, Radar Systems, Effector Systems, Battle Management, Command and Control, Communications, Network Design, and Battlespace Integration and Interoperability for Domestic and International customers.What You Will DoYou will perform Systems Engineering activities for one or more of our key technical domain areas on one of our many programs as an individual contributor. Potential programs include: Patriot, Air and Missile Defense Capability (AMDC), Lower Tier Air and Missile Defense Sensor (LTAMDS), and other sensor or effector programs. Qualifications You Must HaveTypically requires a Bachelor’s in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 8 years of prior relevant experienceExperience with Missile Defense Systems or other related systems engineering experienceQualifications We PreferAdvanced Degree in STEMModel Based Systems Engineering (MBSE) experienceExperience with system and sub-system level requirements development, documentation and maintenance and/or requirements development and design of system level software architectureExperience with system concepts; detection, discrimination, track and signal processing algorithms and their behaviors and performanceExperience with the development and coding of system models, algorithms, test vectors and evaluation tools in support of analyzing radar requirements and performanceExperience working with MATLAB (including object-oriented programming), Python, C/C++, Java or DOORSStrong written and verbal communications skillsExperience with risk and opportunity analysisModeling & Simulation development experienceData analysisExperience with the software development process using Agile Methodologies and tooling, including JIRA and ConfluenceDocumented experience showing analytic, technical and problem-solving skillsExperience demonstrating your communication, technical writing, oral presentation and interpersonal skillsPrevious experience interfacing with customers and leading technical solutions to complex user needsExperience working alone and in a geographically distributed team environmentExperience working with other disciplines and communicating with all levels of the organization and stakeholdersWhat We OfferOur 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.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 will be located onsite in Huntsville, AL.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