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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Software Engineer (Onsite - Secret Clearance) - **Company:** RTX - **Location:** AGUADILLA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Agile Methodology, C++ (Programming Language), Embedded C, Embedded Software, Python (Programming Language), Scrum Methodology, Software Engineering, TCP/IP, UML, Multithreading, SC Clearance - **Published:** August 14, 2026 - **Apply:** https://globalhr.wd5.myworkdayjobs.com/REC_RTX_Ext_Gateway/job/US-PR-AGUADILLA-110--Rd-110-N-Km-288--RD110/Principal-Software-Engineer--Onsite---Secret-Clearance-_01864996-1 ## About the Role 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, Collins Aerospace's Resilient Connectivity Products (RCP) team is looking for an exceptionally motivated engineer who is passionate about collaborating with high-performance teams to create mission-critical solutions that support Mission Systems. Our Principal Software Engineers work in an exciting, adaptive, and engaging environment, enabling rapid learning to drive success. Our software engineering teams regularly utilize a variety of skills, including requirements analysis, synthesis of new and existing architectures that meld commercial and military communication functionality, and software engineering development best practices for complex systems where the ability to execute the mission is paramount. This position will sit at our Aguadilla, PR location and is to be worked Onsite, 5 days a week. You must be residing in Puerto Rico at the time of starting employment. Relocation is not offered., * Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and 8 years prior relevant experience or an Advanced Degree in a related field and minimum 5 years of experience. * Demonstrated professional experience communicating in English (verbal and written). * U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract. * Active and transferable U.S. government issued security clearance is required prior to start date. * Previous experience with Cost Account Management, Integrated Master Schedule, ROAM process, Risk/Opportunity frameworks, and Product owner Skillsets Qualifications We Prefer: * Experience with multi-threaded real-time embedded applications * Prior experience leading proposals and bidding exercises * Experience with Agile development methodology * Ability to take on the role of Scrum Master or Product Owner * TCP/IP network applications development experience UML experience * Background and/or knowledge of cross domain solutions ## Description * Drive Embedded Software Engineering Excellence: Demonstrate expert proficiency in embedded C/C++ and Python throughout all phases of software development, ensuring high-quality, reliable solutions that meet both functional and performance requirements * Lead Technical Proposals and Program Cost Estimations: Take ownership of leading the development of technical proposals, including detailed program-level cost estimates, during the bid and proposal cycle, ensuring competitive and accurate submissions that align with project goals * Lead and Coordinate Software Execution for Small Teams: Lead and manage the execution of software development for smaller teams, ensuring technical quality, alignment with program cost and schedule, while fostering a collaborative and results-driven environment * Translate Customer Requirements into Comprehensive Solutions: Leverage your expertise to translate customer requirements into end-to-end system solutions, addressing technical, schedule, and cost constraints while ensuring the solution is practical, scalable, and meets client needs * Manage Program Cost, Schedule, and Risk: Estimate, track, and communicate program performance metrics, including cost, schedule, and risk, in alignment with earned value management, ensuring programs are delivered on time and within budget * Proactively Identify and Mitigate Risks: Use your technical expertise and best practices to identify potential risks and issues early in the development process, taking proactive measures to mitigate problems and maintain program success * Mentor other engineers to grow team proficiency in execution and management What YOU will learn: * You will learn about our growing engineering team in Puerto Rico; What we do? Who we support? How we work? * You will learn the technologies of today and tomorrow which we count on to maintain world leadership in the aerospace industry. * You will learn why people enjoy and feel fulfilled by working in our industry., Join our growing engineering team in Puerto Rico, where you will provide critical support to all Collins SBUs, working on exciting programs and projects ranging from the development of the next generation of advanced concept ejection seats to the latest technologies for the U.S. warfighter. ## Related Videos - [An Applied Introduction to eBPF with Go](https://www.wearedevelopers.com/videos/1075-an-applied-introduction-to-ebpf-with-go) - [ChatGPT and Java: A Match Made in Heaven or Hell?](https://www.wearedevelopers.com/videos/536-chatgpt-and-java-a-match-made-in-heaven-or-hell) - [Cyber Security: Small, and Large!](https://www.wearedevelopers.com/videos/259-cyber-security-small-and-large) - [The user in the eye of the Cargo1492 storm](https://www.wearedevelopers.com/videos/96-the-user-in-the-eye-of-the-cargo1492-storm) - [Robots are coming into the wild! Full-Stack Robotics Engineers, be ready!](https://www.wearedevelopers.com/videos/479-robots-are-coming-into-the-wild-full-stack-robotics-engineers-be-ready) - [Beyond UML: Making Sense of AI-Generated Code through Visual Architecture](https://www.wearedevelopers.com/videos/2102-beyond-uml-making-sense-of-ai-generated-code-through-visual-architecture) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline)