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Principal AI Engineer

Brazil🌐 Remote💼 Full-time🗓 2026-09-24 → 2026-09-25

Core

Leads architecture and development of enterprise-scale AI orchestration and retrieval systems, defining how LLMs connect with tools, data sources, APIs, and specialized agents.

Role type

Principal AI Engineer (LLM Orchestration & RAG)

Builds

Central AI platform, MCP servers, agentic workflows, and reusable abstraction layers for product teams.

Domain

Artificial Intelligence, Large Language Models, Enterprise Software

Deliverable

production ML models | infrastructure

Required skills

LLM orchestration, agentic workflows, RAG system design, MCP server implementation, tool exposure strategy, multi-agent architecture, vector databases, hybrid search, context management, evaluation frameworks, observability, abstraction layer design

Preferred skills

None stated

Technologies

LangGraph, LlamaIndex, Semantic Kernel, MCP servers, vector stores

Responsibilities

Design and develop orchestration layers connecting LLMs with tools and data; Build and operate MCP servers; Define tool-surface strategies; Establish multi-agent patterns; Design and optimize RAG systems; Create abstraction layers decoupling product teams from models; Develop routing and context-window management strategies; Define evaluation frameworks; Establish observability and tracing; Implement safety measures and guardrails; Collaborate with product teams to onboard capabilities; Mentor engineers on standards.

Seniority

Principal, strategic leadership with hands-on engineering

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