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# Senior Software Engineer (Onsite)

- **Company:** RTX
- **Location:** Aurora, CO, United States
- **Experience:** Expert
- **Salary:** $86,800 - $165,200
- **Contract:** Permanent contract
- **Skills:** Training Data, Java (Programming Language), Agile Methodology, Amazon Web Services, Software Applications, Microsoft Azure, Cloud Computing, Software Quality, Continuous Delivery, Continuous Integration, Object-Oriented Software Development, Server Administration, Software Engineering, Web Services, Devsecops
- **Published:** November 10, 2026
- **Apply:** https://www.careerbuilder.com/job-details/senior-software-engineer-onsite-aurora-co--40b57398-2f67-4c3b-8e60-19b58e9946fc

## About the Role

Software Engineering, United States Citizen, Security Clearance, Aerospace and Defense, RTX, Cloud Computing, Software Development, Training Data Sets, Data Quality, Software Administration, * Experience developing object-oriented software using Java and other Object-Oriented languages

 * Active and transferable Top Secret U.S. government issued security clearance with SCI eligibility is required prior to start date.
 * Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience.

Qualifications We Prefer

 * Experience with Agile development
 * Exposure to cloud platforms (AWS, Azure, or similar) and managed service integration

## Description

Collins is seeking Engineers to be part of an engineering team for the AF DCGS High Band Mission Applications Software (HBMAS) Sustainment and Development program. Under this effort, RTX Collins personnel will oversee/perform software development and sustainment for cloud-enabled systems that ingest, tag, and audit data sets, while maintaining security, integrity, and availability of data.

The team, working with our customers and users, will focus on developing and fielding operationally relevant system capabilities in the most effective and efficient manner. The team will apply best practices across the engineering continuum, with a focus on improved software quality and process efficiency.

This candidate must have an active TS/SCI security clearance. Travel to customer CONUS & OCONUS sites as required, but no more than 25%. This position is an onsite role in Aurora, CO and is contingent on contract award.

What You Will Do

 * Design, develop, test, deliver, and maintain software for cutting-edge defense systems
 * Work with talented teams of engineers, architects, and leaders in an Agile environment.

What You Will Learn

 * A breadth of advanced software technologies and techniques including multi-tiered architectures, AWS web services, and microservice software design.
 * Modern DevSecOps and Continuous Integration/Continuous Delivery techniques.
 * Software lifecycle practices for large-scale defense projects., Do you want to be a part of something bigger? A team whose impact stretches across the world, and even beyond? At Collins Aerospace, our Mission Systems team helps civilian, military and government customers complete their most complex missions - whatever and wherever they may be. Our customers depend on us for intelligent and secure communications, missionized systems for specialized aircraft and spacecraft and collaborative space solutions. By joining our team, you'll have your own critical part to play in ensuring our customers succeed today while anticipating their needs for tomorrow. Are you up for the challenge? Join our mission today.
 * Please ensure the role type (defined below) is appropriate for your needs before applying to 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.

At Collins, the paths we pave together lead to limitless possibilities. And the bonds we form - with our customers and with each other -- propel us all higher, again and again.