Principal Software Engineer (Onsite)

Job ID: 01870167Posted: Posted 18 Days AgoStart Date: 2026-08-26Location: US-TX-RICHARDSON-C17 ~ 1717 Cityline Dr ~ CITYLINE C17Country: United States of AmericaTime Type: Full timeDate Posted:2026-08-26 Country:United States of America 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 1At 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.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.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.This position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA), 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: Richardson, TX: Raytheon North Texas LocationWe Are RTX#RaytheonSpaceAs 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. 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