Description SAIC is seeking a highly qualified Software Engineer to join the Aviation Systems Integration Lab (AVNSIL), located within the Software, Simulation, Systems Engineering and Integration Directorate (S3I) at Redstone Arsenal, in Huntsville, AL. The selected candidate will play a key role in the development and integration of aircraft simulation and stimulation (sim/stim) solutions supporting a variety of aviation platforms and mission systems. This role operates within a Hardware-in-the-Loop (HWIL) environment and directly contributes to system integration, testing, and validation efforts. This position requires a self-starter with a strong technical foundation, a willingness to learn, and the ability to collaborate across multidisciplinary teams in a fast-paced lab environment. The Software Engineer will be responsible for but not limited to the following: Develop, integrate, and maintain software supporting aviation simulation and stimulation environments Design and implement sim/stim models representing aircraft subsystems, avionics, and data interfaces Collaborate with systems, hardware, and test engineers to support full system integration within HWIL environments Participate in agile development activities including daily stand-ups, sprint planning, and retrospectives Perform software testing, debugging, and validation to ensure stable and reliable system performance Troubleshoot software and integration issues across lab systems, including hardware interfaces and communication protocols Contribute to system and software design efforts, including architecture, interface definitions, and data flow Conduct peer code reviews and maintain code quality using established best practices Support integration of avionics communication protocols such as MIL-STD-1553 and ARINC 429 Document software design, functionality, and test results to support maintainability and accreditation efforts Provide technical support to users and assist with lab integration events, testing activities, and customer demonstrations Qualifications Required Education: Bachelor's degree and five (5) years’ experience; additional four (4) years’ experience can be considered in lieu of degree. Required Clearance: Must possess an active Interim Secret security clearance to start with the ability to obtain and maintain an active Secret; US Citizenship required. Required Skills: Strong written and verbal communication skillsAbility to work independently with minimal oversightStrong interpersonal skills with the ability to collaborate with team members and customers, including senior personnelProficiency in C++Experience with software development, debugging, and testing practicesAbility to work in an agile or team-based development environmentStrong problem-solving skills and ability to troubleshoot complex systemsAbility to document code and technical processes clearly Desired Skills or Required Certifications: Experience with C#Familiarity with development tools such as Visual Studio, Git, and AtlassianFamiliarity with RTI DDSExperience with LabVIEWFamiliarity with MATLAB and SimulinkExperience working with MIL-STD-1553 and/or ARINC 429Experience in aircraft simulation, avionics systems, or real-time software developmentExperience with rotary-wing platforms such as UH-60, CH-47, or AH-64Experience with Unmanned Systems or Launched Effects