Principal Software Platform Engineer (Onsite)

Date Posted: 2026-09-17 Country: United States of America Location: US-TX-PLANO-465 ~ 465 Independence Pkwy ~ INDEPENDENCE 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: Top Secret - Current Security Clearance Status: Active and existing security clearance required on day 1 At RTX, the world’s 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. Raytheon has an opportunity for a Principal Platform Software Engineer with well-rounded Infrastructure Platform Engineering expertise to join an agile product team. The Ideal candidate will have experience in both traditional infrastructure design, provisioning, and deployment of compute, storage, and networking resources and emerging modern Infrastructure as Code (IaC) automation technologies. The Principal Platform Software Engineer would be involved with development, implementation of traditional compute, network, storage systems and related deployments, as well as support improving the program platform’s over-arching design through new emerging technologies. This includes existing operating systems and server hardware designs, as well as supporting the design and development of new modernized system architectures through automation tools. What You Will Do Lead a multidisciplinary team of SW platform, DT and GSS engineers (15+) and direct the day‑to‑day execution of the team members Serve as technical lead with hands-on expertise in architecting, designing, implementing, and integrating infrastructure platform services on Linux and Windows based Operating Systems. Delivering schedule milestones defined in the environment recovery plan. Providing training, mentoring, and technical oversight for their teams. Offering design guidance and leading design reviews for next-generation development environments. Ensuring compliance with both RTN and customer cyber security standards and implementation requirements. Managing budget authority for assigned platform initiatives This job is onsite in Plano, TX; applicants must be in the area or willing to relocate to it. Qualifications You Must Have   Typically requires a degree in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 8 years of prior relevant engineering experience. Experience with infrastructure automation and configuration management tools such as Terraform and/or Ansible. And experience with software deployment and integration. Experience with Linux/Windows Operating Systems and Virtualization technologies. Experience with Agile Development Methodologies, e.g., Scrum and SAFe. Active and transferable U.S. government issued Top Secret security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance. Qualifications We Prefer Active and transferable U.S. government issued Top Secret security clearance with Special Program Access. Current CompTIA Security + Experience deploying, configuring, and supporting CI/CD Pipelines tools (E.g. Jira, Confluence, Bit Bucket, Jenkins, Artifactory, Gitlab)  Experience running technical teams Background in COTS/FOSS product installation, configuration, and integration  Experience designing, implementing, and integrating platform infrastructure services using infrastructure as code (IaC)  Multi-disciplined infrastructure experience and expertise (Server, Storage, Network Hardware)  Experience with programming languages (E.g. Python, Java, Ruby, Bash, C++, C#, Go).  Experience troubleshooting performance, reliability, and availability issues across Linux/Windows based platforms and infrastructure services  Experience with containerization using technologies such as Kubernetes, Docker, Podman, Helm, Rancher  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 Offered Based On 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. Clearance Information: 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   Location Information: This position is onsite at our campus in beautiful Plano, TX.   https://careers.rtx.com/global/en/raytheon-north-texas-location We Are RTX As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of