Raytheon Technologies

Senior Software Engineer (Onsite - Secret Clearance)

Raytheon Technologies$90K — $120K *
Aerospace & Defense
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Degree in STEM with 5 years of experience or an Advanced Degree and 3 years of experience
  • Strong English communication skills (verbal and written)
  • U.S. citizenship required
  • Active and transferable U.S. government issued security clearance required prior to start date.

Responsibilities

  • Design and develop mission-critical software systems and applications
  • Perform mission analysis and create software to simulate mission scenarios
  • Collaborate with teams to define software requirements and architectures
  • Implement algorithms for mission planning and decision support
  • Develop tools for modeling and simulation of mission environments
  • Conduct software integration and testing for reliability
  • Lead trade studies and risk assessments for mission engineering tasks

Benefits

  • Medical, dental, and vision insurance
  • Three weeks of vacation for newly hired employees
  • Generous 401(k) plan with employer matching
  • Participation in the Employee Scholar Program
  • Life insurance and disability coverage
  • Employee Assistance Plan with counseling sessions
Full Job Description

Date Posted:

2026-06-30

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

Collins Aerospace’s Resilient Connectivity Products (RCP) team is looking for a highly motivated and experienced Senior Software Engineer with a focus on Mission Engineering to join our team.

In this role, you will lead the development of software solutions to support mission-critical systems and architectures. You will leverage your expertise in software design, simulation, and integration to enable the delivery of high-value capabilities for aerospace and defense applications.

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:

  • 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 multi-disciplinary 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.

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.

Qualifications you must have:

  • Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of prior work 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.

Qualifications We Prefer:

  • Strong proficiency in programming languages such as Python, C++, or similar.
  • Experience with software modeling and simulation tools (e.g., Simulink, STK, or similar).
  • Familiarity with software development processes (e.g., Agile, DevSecOps, CI/CD) and tools (e.g., Git, Gitlab, JIRA).
  • Advanced degree (Masters or PhD) in Software Engineering, Computer Science, or a related discipline.
  • Experience developing software for aerospace, defense, or mission-critical systems.
  • Strong analytical and problem-solving skills with a focus on mission-driven software solutions.
  • Excellent written and verbal communication skills.
  • Expertise in artificial intelligence (AI), machine learning (ML), or optimization algorithms for mission applications.
  • Experience working 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

What We Offer

Some of our competitive benefits package includes:

  • Medical, dental, and vision insurance
  • Three weeks of vacation for newly hired employees
  • Generous 401(k) plan that includes employer matching funds
  • Participation in the Employee Scholar Program (ESP)
  • Life insurance and disability coverage
  • Employee Assistance Plan, including up to 8 free counseling sessions.
  • And more!

Learn More & Apply Now!

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.

* Please consider the following role type definition as you apply for this role.

Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.

About Raytheon Technologies

Raytheon Solipsys, a wholly-owned subsidiary of the Raytheon Company, is an industry leader in the development of integrated Command and Control (C2) Network-Centric solutions for the Domestic and International DoD and Homeland Security. Through proven systems and software engineering practices, built on the invention and application of innovative technologies, they deliver the C2 infrastructure necessary to effectively control security/military forces in any environment. Their reliable solutions assure information superiority, increased shared awareness, deep sensor reach, aircraft control, air defense, disaster management, and time-critical decision making.

Raytheon Technologies Careers

Join the innovative world of Raytheon Technologies, a leader in aerospace and defense, where we offer unparalleled job opportunities in an environment that champions diversity, leadership, and professional growth.

Work You’ll Do

At Raytheon Technologies, you’ll be part of a company that values innovation and leadership. Our team is dedicated to solving some of the most complex challenges in aerospace and defense, making significant impacts worldwide. With a culture that fosters diversity and inclusion, you will collaborate with some of the brightest minds in the industry.

Transform Your Career

Step into a role that harnesses your skills and propels your career to new heights. Raytheon Technologies is not just about thinking big but making those big ideas happen. We provide robust career development opportunities that include comprehensive training and development programs, leadership workshops, and continuous learning through our internal platforms.

Innovate and Lead

Join our team of over 60,000 professionals globally, who are not only experts in their fields but are also driven by a passion for innovation and excellence. At Raytheon Technologies, you are positioned at the forefront of the industry, where your work directly contributes to groundbreaking advancements in technology and defense.

Internship and Employment Opportunities

Whether you’re starting your career or looking to advance, Raytheon Technologies offers a range of employment and internship opportunities that can help you achieve your professional goals. Our internships provide a solid foundation of skills and experiences, while our full-time positions offer a path to personal and professional growth within the company.

Benefits and Culture

Our employees enjoy a competitive package of benefits and rewards that reflect their invaluable role in our company. From health and wellness programs to performance bonuses and flexible working conditions, we ensure our team members are well taken care of.

Networking and Professional Development

At Raytheon Technologies, networking and professional development are part of our DNA. We encourage our employees to engage in internal and external networking events, leadership training, and diversity initiatives that enhance their career journey.

Join Our Team

Explore the numerous positions available that match your skills and interests. We are looking for passionate, curious, and solution-driven team players who are ready to take their career to the next level.

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Prepare for Your Future

Ready to apply? Enhance your resume and prepare for your interview with our comprehensive support tools and resources. Discover the exciting and rewarding career opportunities that await at Raytheon Technologies.

SEARCH RAYTHEON TECHNOLOGIES JOBS

Join us in our mission to create a safer future and be a part of a team that values integrity, excellence, and teamwork. At Raytheon Technologies, your career is just the beginning of a lifelong journey of professional and personal growth.
Learn more about Raytheon Technologies
Size
14,771 employees
Market Cap
$32,494
Industry
Founded
1922
NASDAQ

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