Senior AI Engineer

What you will do

• Partner with technical leadership to design, develop, and maintain LLM orchestration frameworks that coordinate static analyzers, retrieval-augmented generation (RAG) systems, and automated testing pipelines.
• Build and optimize data preprocessing pipelines to ingest, clean, transform, and vectorize product documentation, source code, and test results for LLM consumption.
• Design and implement database solutions to support RAG architectures, including artifact storage, audit trails, and metadata management.
• Work with systems engineers to architect and deploy networked AI tools within secure enclaves, and perform performance profiling, optimization, and scalability analysis for mission systems.
• Support security assessments and authority to operate (ATO) processes.
• Apply AI/ML to develop tools and techniques that include fine-tuning Large Language Models (LLM) for enhanced vulnerability identification and mitigation capabilities.

Required qualifications

• Bachelor’s degree plus eight (8) years of relevant experience, or equivalent.
• Proficiency in Python, LLM integration, and data engineering.
• Experience with static analyzers, RAG frameworks, and relational and vector databases.
• Familiarization with Agile, Git, Jira, and Confluence.
• Active TS/SCI with Polygraph required.

Beneficial skills and tools

• Familiarization with RUST, Claude Code, Codex, and CI/CD.

Education, training, and time off

• Paid Time Off
• 11 paid Holidays
• Technical Upskilling
• Education and Training Support
• Parental Paid Leave

Additional benefits

• 401K with a 6% company match and immediate vesting
• Flexible Schedules
• Discounted Stock Purchase Plans
• Competitive benefits

Data security and application safety

• Leidos will never ask you to provide payment-related information during the hiring process and will not advance money (for example, by sending a check or money order) as part of employment consideration.
• Leidos will only communicate through emails generated by the Leidos.com automated system, not through free commercial email services or messaging apps.
• If you receive a suspicious email requesting payment or personal information, email [email protected].
• If you believe you are a victim of a scam, contact local law enforcement and report to the U.S. Federal Trade Commission.

Non-discrimination: Leidos provides equal employment consideration without regard to protected characteristics, and will also consider applicants with criminal histories consistent with applicable law.