2026 Software Developer Engineer I - Onsite

RTX•Tucson, AZ

1d•Onsite

About The Position

At Raytheon, the foundation of everything we do is rooted in our values and a higher calling – to help our nation and allies defend freedoms and deter aggression. The company brings over 100 years of experience and engineering expertise to meet current and future mission needs, solving tough problems to create a safer, more secure world. The Integrated Solutions, Modeling, and Architecture (ISMA) directorate assesses, develops, and evaluates solution architectures for complex customer challenges across all operational domains. Within the Operations and Mission Analysis Department, the team analyzes global threats and defines new capabilities to counter them, utilizing operational modeling and simulation with purpose-built software. As a member of the Air Dominance Modeling and Analysis section, this role involves working with high-fidelity sensor, platform, and weapon simulations to provide actionable analysis to the Department of Defense and the Warfighter. Raytheon is seeking a Kill Chain Software Developer Engineer I for an onsite role in Tucson, AZ, with potential for occasional travel.

Requirements

Bachelor’s degree in a Science, Technology, Engineering, or Mathematics (STEM) field (including computer science)
Experience with at least one object oriented programming language (Python, C++, Java, C#, etc)
Experience may be obtained through on‑the‑job experience, research, coursework, or projects

Nice To Haves

Specific majors: Computer Science, Computer/Electrical Engineering, Software Engineering, Mechanical Engineering, Aerospace Engineering
Cumulative GPA ≥ 3.0
Coursework, internship, projects or work experience in the following areas: Simulation modeling, development, and/or analysis of physical systems
Agile development methodologies
Probability and statistics
Software development processes and object-oriented design using and/or Python in either Unix or Linux computing environments
Software Configuration Management tools and processes (git, subversion, mercurial)
Computation on high-performance computing (HPC) grids/clusters, SLURM
Distributed simulation communication standards (DIS, TENA, HLA)
DevOps tools, processes, and methods
Excellent communication skills and ability to effectively collaborate with peers, customers, management, and functional partners (IT, Cyber Security, Security)
Creation and presentation of effective technical reports in PowerPoint and Document form
Prior experience with classified material
Active and transferable U.S. government issued SECRET or TOP SECRET security clearance

Responsibilities

Actively participate as a member of an agile development team
Design, Develop, Review and Test new software features in an all-digital distributed simulation environment
Implement APIs and integration external high-fidelity digital simulation software into Raytheon’s Air Dominance Testbed and Air Combat Evaluation Model®
Provide direct Warfighter support by developing software used to inform operator tactics and procedures
Work with Subject Matter Experts to verify and validate digital simulation performance
Work cross-domain to develop medium-fidelity physics models of conceptual missile systems