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RT

Principal Software Engineer (Foundation Software) | Remote

RTX United States Yesterday
Software Architecture Distributed Systems Mentoring

About the Role

RTX is seeking a Principal Software Engineer to help build and evolve foundation software that powers critical aerospace and defense capabilities. This is a remote role supporting teams focused on solving complex, real-world technical challenges.

Responsibilities

  • Design, develop, and maintain core foundation software components and shared services
  • Lead technical direction across architecture, engineering standards, and long-term scalability
  • Collaborate with cross-functional teams to deliver reliable, secure software
  • Mentor engineers and contribute to best practices in software engineering
  • Drive troubleshooting and performance improvements for production systems

Requirements

  • U.S. citizenship required (U.S. citizen or U.S. person/authorized immigration status to access program/contract information)
  • Strong experience designing and delivering software systems at scale
  • Proficiency with modern software development practices and toolchains
  • Ability to lead technical discussions and make sound architectural decisions

Benefits

  • Work with a mission-driven organization at the forefront of aerospace and defense technology
  • Remote work flexibility
  • Opportunities to contribute to research and development with high-impact engineering teams
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Posted on July 12, 2026
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