Principal Software Engineer (Onsite)

Principal Software EngineerThe 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.What You Will DoLead 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.Qualifications You Must HaveTypically 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 clearanceQualifications We PreferExperience 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.What 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.Relocation Eligible – Relocation assistance is available.