3h ago

Staff AI Engineer (Data Ontologist)

Brazil

$170k-$250k / yearest.

full-timelead Remoteconsulting

🛠 Tech Stack

💼 About This Role

You'll design and operationalize the semantic foundations that power intelligent AI systems, enabling agents to reason and retrieve effectively. You'll transform fragmented enterprise information into coherent, machine-interpretable context for high-performance agentic systems. This role bridges data, AI, and application layers to drive impactful decision-making.

🎯 What You'll Do

  • Design context architectures for AI reasoning over enterprise knowledge.
  • Develop and maintain ontologies, schemas, and knowledge representations.
  • Optimize context assembly pipelines including retrieval and ranking logic.
  • Build knowledge graphs and semantic layers over structured/unstructured data.

📋 Requirements

  • 5+ years experience with semantic systems, ontologies, or knowledge graphs.
  • Hands-on knowledge representation including taxonomy design and entity-relationship modeling.
  • Experience with LLM-based systems in context engineering, RAG, or agentic architectures.
  • Deep understanding of embeddings, vector databases, and retrieval strategies.

✨ Nice to Have

  • Experience with context graphs and advanced context orchestration for agentic systems.
  • Background in information science, knowledge engineering, or ontology design.
  • Familiarity with evaluation frameworks for context quality and agent performance.

🎁 Benefits & Perks

  • 🌍 Global Innovation Hub: International consultancy at tech forefront.
  • Flexible Hours: Autonomy over your schedule.
  • 🏢 Remote-First: Fully remote within Brazil.

🚩 Heads Up

  • Role combines AI Engineering and Data Ontologist, potentially hybrid/unclear focus.
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