Mid-Level Software Engineer

About the role

Leidos’ Defense Systems Uncrewed Systems Integration and Test is seeking a motivated and ambitious Mid-Level Software Engineer to join the Software, Simulation, Systems Engineering and Integration Directorate (S3I) Joint Technology Center – Systems Integration Lab (JSIL) Technology and Certification Center.

Primary Responsibilities

• Performs hands-on software system development from lab to field application
• Determines computing system requirements
• Analyzes system capabilities to resolve problems on program intent, output requirements, input data acquisition, programming techniques and controls
• Designs and develops autonomous services, desktop applications, scripts, and utility programs
• Participates in technical design sessions and collaborates with stakeholders to establish the foundational architecture for new software applications
• Develops rapid prototypes and proof-of-concept applications to validate design decisions and mitigate technical risks early in the development lifecycle

Basic Qualifications

• BS degree in computer science or related technical degree plus 6-12 years+ professional software development experience
• or MS degree in computer science or related technical degree plus 2-8 years+ professional software development experience
• Proficiency in C# and the .NET ecosystem (equivalent Java experience may be substituted)
• Experience with software application architectural design patterns and decision-making for scalable, maintainable applications
• Experience with system integration, message handling, and data exchange protocols
• Strong understanding of software development lifecycle, version control, and agile methodologies
• Good understanding of markup languages (e.g., XML, YAML, HTML)
• Good understanding of DevSecOps practices and CI/CD pipelines
• Good understanding of API inputs and outputs
• Familiarity with Windows and Linux OS
• Strong understanding of cybersecurity principles and secure coding practices
• Strong analytical and organizational skills to handle multiple tasks and projects and to work independently
• Excellent written and verbal communication skills

Preferred Qualifications

• Proficiency in one or more of the following scripting languages: Bash, Python, or PowerShell
• Experience with containerization (Docker, Kubernetes), microservices, or cloud-based architectures
• Effective written and oral communication skills are also required to work with all levels of staff and managers
• Proficiency in Microsoft Office