Senior AI/ML Engineer

Description

PLEX Solutions, A Part of Markon is looking for a Sr. AI/ML Engineer to support a program in the Annapolis Junction, MD area.

Responsibilities

• Design and integrate LLM/agent orchestration workflows using agentic frameworks such as LangGraph, Agno, and the NVIDIA NeMo Agent Toolkit. • Tune model gateway routing logic to select, evaluate, and optimize across multiple frontier and open-weight models for cost, performance, and mission fit. • Develop and integrate RAG pipelines, vector databases, and memory services to give agents access to mission knowledge and context. • Implement MCP (Model Context Protocol)-based tool-broker integrations so agents can safely and securely access enterprise tools and data. • Evaluate, benchmark, and tune models and agent behaviors; build automated evaluation pipelines to track quality, safety, and performance over time. • Partner with data scientists and mission analysts to translate research and prototypes into production-grade AI capabilities for the command. • Implement AI governance guardrails — content/safety filters, policy enforcement, and approval gates — for agentic workflows, and document model/agent architectures and evaluation results for reuse. • Research and evaluate emerging LLM, agent, and AI tooling to keep the command's AI capability current and adaptable.

Qualifications

• Active TS/SCI w/ Polygraph • Bachelor’s degree from an accredited college or university in Computer Science, Data Science, or a related…