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Principal AI/ML Engineer

One Brief

Salary not specified
Nov 18, 2025
Remote, US
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Onebrief is looking to solve complex military requirements for planning critical operations by transforming them into robust production-ready systems using AI and ML.

Requirements

  • 10+ years in large scale distributed systems, ideally supporting more than 100k concurrent users
  • Proven experience designing and deploying AI systems at scale in distributed, production environments
  • Strong background in integrating LLMs with retrieval systems for real-world use cases
  • Understanding of data governance, model safety evaluations, red-teaming, and secure ML practices for regulated domains
  • Experience with building systems with information retrieval (relevance & ranking), natural language processing techniques like Named Entity Recognition (NER)
  • Experience with orchestrating systems that combine text, structured data, and domain-specific signals

Responsibilities

  • Define system-level standards for model development, evaluation, and deployment, while mentoring senior and staff level engineers through collaboration.
  • Drive long term AI/ML architecture at Onebrief.
  • Agent Orchestration: Design systems that coordinate multiple AI agents, tools, and workflows to accomplish complex operational tasks.
  • Design and implement enterprise-scale AI infrastructure supporting retrieval, generation, and multi-modal reasoning.
  • Build and scale graph-based systems for structured representation, reasoning, and integration with generative models.
  • Apply LLM practices like RAG & prompt engineering to deliver grounded & reliable outputs for mission planning
  • Establish evaluation frameworks and SLO's for RAG quality, agent reliability, and system performance in production

Other

  • Partner with product, domain experts, and leadership to translate operational needs into technical roadmaps.
  • mentoring senior and staff level engineers through collaboration.
  • M.S. in Computer Science, Engineering, or equivalent practical experience
  • Background in defense, national security, or other mission-critical domains