Software Engineer Level 3-5 with Security Clearance

Location: Hazelwood/Berkeley, Missouri (100% Onsite)
Must have an active Secret clearance and be eligible for Special Access Clearance
Contract-to-Hire U.S. Citizenship Required Join a top-tier aerospace and defense company leading innovation in next-generation platforms and secure systems. We are seeking Software Engineers with strong experience in embedded systems, real-time development, and CI/CD pipelines to support mission-critical, high-security programs. Key Responsibilities: Design, develop, test, and maintain embedded software for integrated hardware systems Translate requirements into scalable and efficient software using C or similar Build and support CI/CD pipelines to streamline development and deployment Collaborate with hardware teams to tightly integrate software components Perform unit, integration, and system-level testing using automated frameworks Troubleshoot, debug, and optimize embedded systems for stability and performance Stay current on industry standards, tools, and secure development practices Support project planning, documentation, and performance tracking Required Qualifications: Bachelor's degree in engineering, computer science, or related field 5+ years of professional software development experience Proficient in C and/or development on Linux operating systems Experience setting up and managing CI/CD pipelines U.S. Citizenship with active Secret clearance Ability to obtain Special Access Clearance Preferred Skills
Experience with Git, Visual Studio, or similar IDEs Familiarity with automated test frameworks Prior work in secure environments or classified programs Experience in embedded firmware or device-level development ️ Special Access Program Requirements:
Candidates must meet all conditions to qualify for program access: U.S. Citizen (no dual citizenship) Clean criminal history Clean financial background (no recent bankruptcies or collections) No close ties to foreign nationals or extensive foreign travel Spouse and parents must also be U.S. citizens with no dual citizenship