Principal Software Engineer (Onsite - Secret Clearance)

Collins Aerospace; Aguadilla (PR); On-site; USD 110,000 - 170,000; Full time

Job summary

Collins Aerospace in Aguadilla, PR is seeking a Principal Software Engineer to drive embedded software excellence in C/C++ and Python for mission-critical systems. The role sits onsite, requires residency in Puerto Rico, and security clearance.

You will lead proposals, cost estimates, and small-team software execution, translating customer requirements into comprehensive solutions for DoD programs.

Qualifications

• Experience with embedded C/C++ and Python in real-time systems.
• Ability to translate customer requirements into technical solutions.
• Experience leading small software teams and proposals.

Responsibilities

• Drive embedded software engineering excellence across all development phases.
• Lead technical proposals and program cost estimations.
• Coordinate software execution for small teams and ensure quality.
• Translate customer requirements into comprehensive solutions.

Skills

Embedded C/C++

Python

Technical leadership

Requirements translation

Job description

Location

US-PR-AGUADILLA-110 ~ Rd 110 N Km 28.8 ~ RD110

Date Posted

2026-08-13

Country

United States of America

Location

US-PR-AGUADILLA-110 ~ Rd 110 N Km 28.8 ~ RD110

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

DoD Clearance: Secret

At 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.

Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense.

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.

What YOU will do

• 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