Senior Software Engineer (Onsite - Secret Clearance)

Collins Aerospace’s Resilient Connectivity Products (RCP) team seeks a highly motivated and experienced Senior Software Engineer focused on Mission Engineering to join our group. In this role you will lead the development of software solutions to support mission‑critical systems and architectures.

This position is located in Aguadilla, Puerto Rico and requires onsite work five days a week. Relocation is not offered, and the employee must reside in Puerto Rico at the time of employment start.

U.S. citizenship is required. An active and transferable U.S. government‑issued security clearance (Secret level) must be obtained prior to the start date.

Responsibilities

• Design, develop, and implement mission‑critical software systems, tools, and applications.
• Perform mission analysis and develop software solutions to model, simulate, and evaluate mission scenarios.
• Collaborate with multidisciplinary teams to define software requirements and architecture for mission systems.
• Implement and optimize algorithms for mission planning, decision‑support, and system performance analysis.
• Develop and maintain software tools for modeling and simulation of mission environments (e.g., AFSIM, RCADE, C++, Python).
• Perform software integration and testing to ensure system functionality and reliability.
• Support software verification and validation efforts to meet mission objectives and requirements.
• Lead trade studies, technical reviews, and risk assessments for software‑focused mission engineering tasks.
• Mentor junior engineers and provide technical leadership in software development and mission engineering.
• Ensure compliance with RTX software engineering processes, cybersecurity standards, and best practices.

Required Qualifications

• Degree in a STEM field and at least 5 years of relevant experience (or an advanced degree with a minimum of 3 years of work experience).
• Demonstrated professional experience communicating in English, both verbally and written.
• U.S. citizenship and required security clearance.

Preferred Qualifications

• Strong proficiency in programming languages such as Python, C++, or similar.
• Experience with software modeling and simulation tools (e.g., Simulink, STK).
• Familiarity with software development processes (e.g., Agile, DevSecOps, CI/CD) and tools (e.g., Git, GitLab, JIRA).
• Advanced degree (Master’s or Ph.D.) in Software Engineering, Computer Science, or related discipline.
• Experience developing software for aerospace, defense, or mission‑critical systems.
• Strong analytical and problem‑solving skills with a mission‑driven focus.
• Excellent written and verbal communication skills.
• Expertise in artificial intelligence, machine learning, or optimization algorithms for mission applications.
• Experience with model‑based systems engineering (MBSE).
• Previous experience working with government or military customers.
• Demonstrated ability to lead technical teams and manage complex software projects.
• Experience integrating/deploying software to hardware solutions.

Benefits

• Medical, dental, and vision insurance.
• Three weeks of vacation for new hires.
• Generous 401(k) plan with employer matching.
• Participation in the Employee Scholar Program.
• Life insurance and disability coverage.
• Employee Assistance Plan with up to eight free counseling sessions.
• Additional company‑wide benefits.

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. RTX provides affirmative action for qualified individuals with disabilities and protected veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.