Collins Aerospace, an RTX business, is looking to hire a Principal Software Engineer to support our Mission Systems Command, Control Communications, Cyber Intelligence and Autonomy (C4I&A) organization. In this role, you will serve as a technical leader driving secure software design, automation, and architectural decisions that shape the future of our communication and cyber intelligence programs. As a Principal Software Engineer, you will define and guide the technical direction for secure, scalable software systems in C4I&A programs. You will ensure that security, automation, and reliability are integrated into architecture and processes across multiple teams and projects. You will act as a subject matter expert, mentor, and trusted advisor to both engineers and leadership. This position will sit at our Aguadilla, PR location. You must be residing in Puerto Rico at the time of starting employment. Relocation is not offered. This role is categorized as hybrid, with 3 days onsite and 2 days remote following the schedule assigned by the Manager.