Junior Software Engineer contributing to software design and development for the Defense Sector at Leidos. Working collaboratively in Agile teams using Java, Rust, and JavaScript.
About the role
- Senior Software Engineer building a decision-support platform for national security operations. Designing models that translate operational scenarios into credible software solutions.
Responsibilities
- Build the scenario execution layer and operational domain models for a platform that generates optimized courses of action under uncertainty
- Define action spaces, effects models, and constraint templates that give the solver meaningful scenarios to reason over
- Build the execution harness and vignettes that demonstrate cross-domain composition in operationally relevant contexts
- Ensure the platform works against scenarios that defense planners and operators recognize as real, relevant, and challenging
- Work in a rapid development environment with AI-native tooling, delivering operationally relevant systems at engineering velocity
Requirements
- 5+ years of experience developing software for modeling, simulation, or mission planning applications in defense, intelligence, or national security contexts
- Experience building domain models that represent operational scenarios, including entity definitions, action spaces, effect chains, and constraint structures
- Experience with effects modeling, including the representation of cyber operations, electronic warfare, or information activities within simulation or planning frameworks
- Ability to translate operational concepts and doctrine into software-representable structures such as effect catalogs, constraint templates, or scenario specifications
- Ability to obtain a TS/SCI clearance with a polygraph
- Bachelor's degree in a CS, Systems Engineering, or Operations Research field
Benefits
- Health, life, disability, financial, and retirement benefits
- Paid leave
- Professional development
- Tuition assistance
- Work-life programs
- Dependent care
- Recognition awards program
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