C5I Principal Platform Engineer at RTX in Tewksbury, MA

C5I Principal Platform Engineer Location: US-MA-TEWKSBURY-TB3 ~ 50 Apple Hill Dr ~ CONCORD BLDG, Tewksbury Tb3 300 Concord Date Posted: 2026-05-14 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: The ability to obtain and maintain a U.S. government issued security clearance is required.​ 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 after day 1 At RTX, the world largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Raytheon brings 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. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense. We are seeking a Principal Platform Engineer to support the C5I (Command, Control, Communications, Computing, Cyber, and Intelligence) product line within the Missile Defense Sensors (MDS) Software Department. The MDS mission is to provide world‑class Radar and Command and Control (C2) software across an array of surveillance and warning systems. Platform Engineers design, optimize and maintain the secure, scalable, mission‑critical software infrastructure that underpins radar, C2 and DevSecOps‑intensive systems. As a senior leader on our team, you will shape platform architecture, drive modernization and ensure delivery of robust capabilities that support real‑time mission execution across programs. This role requires deep DevSecOps expertise, technical leadership and the ability to influence architecture and engineering strategy across multiple teams. This position is located onsite in Tewksbury, Massachusetts. What You Will Do Own the platform architecture and define modernization strategies for C5I mission systems, including automation, container orchestration and secure platform design. Lead the development of resilient, scalable, and secure platform environments using Linux, Kubernetes, Docker, Terraform, Ansible, Artifactory, and related technologies. Influence program‑level decisions involving hardware/software trade‑offs, COTS selection, platform reuse, and requirements synthesis. Architect end‑to‑end DevSecOps workflows to support high‑frequency, high‑quality deployments across MDS programs. Oversee CI/CD pipelines (Jenkins, GitLab CI/CD) to ensure secure, automated build, test, and release processes at scale. Drive initiatives that raise DevSecOps maturity, expand Infrastructure‑as‑Code adoption, and increase automation coverage. Lead cross‑program integration efforts spanning Software, Systems Engineering, Cybersecurity, Platform and Integration & Test teams. Conduct advanced debugging and performance optimization across distributed and containerized environments. Establish platform engineering standards and best practices across multiple MDS and C5I product lines. Represent the platform engineering discipline in major design reviews, customer meetings and technical boards. Mentor and guide Platform Engineers, providing technical direction and fostering a culture of learning and collaboration. Provide leadership in Agile Scrum/Kanban environments, supporting planning, estimation and technical execution. What You Will Learn Advanced real‑time radar and C2 system behavior, multi‑sensor data processing and secure distributed system design. How to lead DevSecOps transformation efforts across classified environments. Strategies for scaling platform engineering capabilities across multiple mission programs. Qualifications You Must Have Typically requires a Bachelor’s in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience unless prohibited by local laws/regulations. Expert‑level experience in Linux platform engineering and administration. Experience with Docker, Kubernetes, Terraform, Ansible and virtualization tools such as VMware/KVM. Experience with scripting and automation tools such as Python, Bash and PowerShell. Experience with CI/CD systems (Jenkins, GitLab CI/CD) and secure build/deployment architectures. Experience architecting or leading mission‑critical platform or DevSecOps environments for distributed or real‑time systems. Technical leadership experience, including task delegation, decision‑making, and cross‑team collaboration. Ability to obtain U.S. government issued Secret security clearance is required after start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance. Qualifications We Prefer Deep understanding of radar, C2, or large‑scale real‑time defense systems. Hands‑on experience applying DevSecOps tools (Docker, Ansible Tower, Artifactory, GitHub/Bitbucket) in secure or classified environments. Expertise in high‑availability systems, distributed architectures, or high‑performance computing environments. Experience influencing architecture across multiple programs simultaneously. Strong communication and customer‑facing skills, with the ability to lead technical discussions and solution development. Familiarity with Agile management tools such as JIRA and Confluence. 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. 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. Candidates will learn more about role type and current site status throughout the recruiting process. For onsite roles, commuting to and from the assigned site is the employee’s personal responsibility. 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 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