Senior AI Engineer TS/SCI w/ Poly

Amentum is seeking a motivated Senior AI Engineer with a proven track record in software engineering and deep understanding of Artificial Intelligence/Machine Learning (AI/ML) techniques to support the exciting new AI and Emerging Technologies (AI&ET) mission. The engineer will work closely with mission stakeholders to capture

, aid in structured planning, and improve the certification process by introducing AI/ML tooling. Additionally, the engineer will use AI/ML to develop tools and techniques to include fine tuning Large Language Models (LLM) that assist in enhanced vulnerability identification and mitigation capabilities. Essential

: Collaborate closely with technical leadership to design, develop, and maintain LLM orchestration frameworks that coordinate static analyzers, retrieval-augmented generation (RAG) systems, and automated testing pipelines. Develop 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, artifact storage, audit trails, and metadata management. Minimum

(Knowledge, Skills, and Abilities): Collaboratively work with systems engineers to architect and deploy networked AI tools within secure enclaves and conduct performance profiling, optimization, and scalability analysis of mission systems. Support security assessments and authority to operate (ATO) processes. Proficiency in Python, LLM integration, and data engineering. Experience with static analyzers, RAG framework, and relational and vector databases. Familiarization with Agile, Git, Jira, and Confluence. Security Clearance Required: TS/SCI Poly Minimum Years of Experience: • A Doctoral degree plus 4 years of relevant experience, or • a Master's degree plus 6 years of relevant experience, or • a Bachelor's degree plus 8 years of relevant experience, or • an Associate's degree plus 10 years of relevant experience, or • a High School diploma/GED plus 12 years of relevant experience may be considered for individuals with in-depth experience that is clearly related to the position.