Principal Systems Engineer - Linux at RTX in Tewksbury, MA

Principal Systems Engineer - Linux Location: US-MA-TEWKSBURY-TB3 ~ 50 Apple Hill Dr ~ CONCORD BLDG, Tewksbury Tb3 300 Concord Date Posted: 2026-05-07 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. Raytheon is seeking a talented and motivated Principal Systems Engineer to join our team within the Systems Engineering and Test Capabilities (SETC) Discipline, supporting the LTAMDS and GhostEye Radars. Every day will bring new challenges, requiring you to work across disciplines to troubleshoot issues, perform system maintenance, and implement solutions. Your contributions will directly impact the success of mission-critical defense systems, and you'll have a hands-on role in ensuring the entire system functions seamlessly. This role can be based out of Andover, MA or Tewksbury, MA. What You Will Do: In this Systems Engineer role, you will support the following types of activities: Serve as a subject matter expert for Linux environments and network architecture, providing guidance to engineering and operations teams. Troubleshoot complex system and network issues, performing root cause analysis and implementing long-term solutions. Lead System Build Efforts: Develop and implement installation plans, procedures and documentation for both tactical and non-tactical system builds. Integrate Systems: Install and integrate server hardware, network hardware, operating systems and software into tactical and simulation systems, evaluating their compatibly and functionality. Software Installation: Install and configure commercial, government and Raytheon software applications requested by end users. Integrate Systems: Install and integrate server hardware, network hardware, operating systems and software into tactical and simulation systems, evaluating their compatibly and functionality. Present Findings: Present technical findings and solutions to leadership. Support Missions: Travel as needed (up to 20%) to support mission execution at various locations including local RTX facilities, test sites, vendor facilities, and customer locations. Qualifications You Must Have: Typically requires a degree in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 8 years of prior relevant experience Experience with Linux architecture, deployment, administration, performance monitoring/tuning, security hardening, and troubleshooting. Experience with network equipment, deployment, administration, performance monitoring/tuning, security hardening, and troubleshooting. Experience with systems software, systems hardware, systems requirements, systems integration, and/or systems test. Qualifications We Prefer: Experience with network design and management. Experience using VMware or other virtual computing methods Experience Scripting (Bash, Python, Ansible) and Kickstart Experience supporting engineers in software, simulations, and hardware development. Experience with generating technical documentation, such as system build plans, procedures, or technical reports. Experience working in an integration lab, test facility, or in the field, supporting integration and/or verification. Experience interfacing with internal and external customers. Cisco Certification, RedHat Certified Systems Administrator, VMWare or other industry relevant certifications 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. 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 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