Principal Software Engineer (Onsite)

Location: US-TX-RICHARDSON-C17 ~ 1717 Cityline Dr ~ CITYLINE C17

 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: TS/SCI - 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. The Principal Software Engineer will help build and enhance a data fabric to support mission‑critical GEOINT allocation and decision analytics. The role focuses on developing services and secure automation across the Data, Business Analytics, and Simulation layers while working in DevSecOps environments spanning multiple security domains. You will contribute to scalable cloud‑native components, high‑availability performance targets, and AI/ML‑enabled workflows, collaborating with a team across multiple geographic sites. This is an onsite role located in Richardson, Texas.

Lead design and implementation of Python services supporting analytics, ETL pipelines, and semantic/knowledge‑graph workflows. Develop secure CI/CD and DevSecOps automation, including containerized deployments and infrastructure‑as‑code. Provide senior technical guidance, coaching, and design reviews for teammates. Investigate and solve high‑complexity issues across cloud‑native systems, data‑fabric components, and platform operations. Collaborate across Agile teams and contribute to program‑wide engineering standards and guardrails.

You Must Have Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and 8 years of relevant experience. Experience with Python development, including distributed systems or high‑performance data workflows. Experience with DevSecOps tooling, CI/CD pipelines, automated testing, and build processes. Experience with Kubernetes/OpenShift and cloud‑native microservices. Active and transferable TS/SCI 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 Qualifications We Prefer Experience with semantic data (RDF/SPARQL), ontology development, or knowledge‑graph systems. Background in ETL for semantic stores, event‑streaming technologies, or high‑concurrency workloads. Experience in multi‑team Agile environments. Strong communication and mentorship skills. Demonstrated ability to contribute to design initiatives, influence engineering decisions, and complex technical problems.

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 Eligible – Relocation assistance is available. Learn More & Apply Now! Please consider the following role type definition as you apply for this role.