Senior Software Engineer / Data Scientist (Training Systems)

Leidos offers a competitive compensation package supported by Health and Wellness programs, Income Protection, Paid Leave, and Retirement benefits. This onsite role in Chantilly, VA focuses on designing, developing, and deploying AI and ML enabled training and education systems for national security programs, with end-to-end responsibility in distributed and classified environments. You will bring strong front end TypeScript skills together with data science capabilities to deliver impactful digital learning experiences.

Benefits

• Competitive compensation
• Health and Wellness programs
• Income Protection
• Paid Leave
• Retirement

Responsibilities

• Design, develop, and maintain modern web-based training and learning applications
• Build responsive, scalable, and accessible front end applications using TypeScript and modern frameworks
• Develop and integrate AI/ML enabled capabilities into training and operational support systems
• Apply data science and analytics techniques to support adaptive learning, user insights, performance analysis, and mission workflows
• Collaborate with instructional designers and subject matter experts to translate learning objectives into interactive digital experiences
• Integrate front end systems with APIs, backend services, AI/ML pipelines, and enterprise platforms
• Develop reusable UI components, visualizations, and workflows supporting scalable training ecosystems
• Work with structured and unstructured data sources across enterprise and classified environments
• Participate in the full software development lifecycle including architecture, implementation, testing, deployment, and sustainment
• Support deployment and operationalization of AI/ML capabilities within production systems
• Utilize modern AI assisted development workflows and coding agents to accelerate software delivery, prototyping, testing, refactoring, and documentation
• Apply contemporary engineering practices using AI powered development tools while maintaining code quality, security, maintainability, and testing
• Evaluate and integrate emerging developer tooling and agentic engineering capabilities into team workflows and application development practices
• Troubleshoot application, integration, and data related issues across distributed environments
• Contribute to software engineering standards, reusable frameworks, and development best practices
• Stay current with emerging front end, AI/ML, and learning technology trends

Requirements

• Bachelor’s degree in Computer Science, Data Science, Software Engineering, Mathematics, Engineering, or related technical field with 8+ years of relevant experience and 15+ years overall experience; additional experience may be considered in lieu of degree
• Strong hands-on software engineering experience with TypeScript and modern front end development
• Experience with modern front end frameworks such as React, Next.js, Angular, or Vue
• Practical experience applying data science, analytics, or AI/ML techniques to real world applications
• Proficiency in Python and familiarity with common data science and machine learning libraries
• Experience integrating applications with APIs, backend systems, and data services
• Familiarity with AI/ML workflows including data preparation, model integration, inference pipelines, or analytics processing
• Experience using modern AI assisted software development tools and coding agents within professional engineering workflows
• Familiarity with contemporary AI coding ecosystems and developer productivity tools such as Claude Code, OpenAI Codex, Cursor, OpenCode, GitHub Copilot, or similar platforms
• Demonstrated ability to effectively leverage AI assisted development while maintaining sound software engineering fundamentals, debugging practices, testing discipline, and secure coding standards
• Strong understanding of modern software development practices including Git, CI/CD, automated testing, and agile methodologies
• Demonstrated ability to independently design and implement production ready technical solutions
• Strong analytical, troubleshooting, and problem solving skills
• Strong written and verbal communication skills
• Must hold an active TS/SCI clearance with Polygraph