359 - Sr. AI Engineer

At ARSIEM Corporation we are committed to fostering a proven and trusted partnership with our government clients. We provide support to multiple agencies across the United States Government. ARSIEM has an experienced workforce of qualified professionals committed to delivering reliable and cutting-edge technical solutions at the best value to our clients. This role offers opportunities to grow and make an impact across every client you work with.

About the role

ARSIEM 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 AI and Emerging Technologies (AI&ET) mission. The engineer will work closely with mission stakeholders to capture requirements, aid in structured planning, and improve the certification process by introducing AI/ML tooling. Additionally, the engineer will develop AI/ML tools and techniques, including fine-tuning Large Language Models (LLM) to enhance vulnerability identification and mitigation capabilities. This position supports a government client in Linthicum, MD.

Responsibilities

• 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.
• 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.

Requirements

• Bachelor's degree plus 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 a polygraph clearance (required).
• U.S. citizenship (required).

Preferred Qualifications

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

Pay

$191,000 - $214,000 a year. The ARSIEM pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include job responsibilities, education, experience, knowledge, skills, abilities, internal equity, alignment with market data, applicable bargaining agreements, or other laws.

Benefits

For an overview of our benefits, visit our benefits page.