Senior GenAI Full-Stack Engineer - Brazil

From the original posting

Design and extend production-grade LLM applications and agentic workflows using NestJS, XState v5, and the OpenAI SDK — flows include RAG, intent detection, clarification, fulfillment, escalation, tool-use, and human-in-the-loop state machines - Build and maintain the conversation-machine substrate: guard/action registries, flow validation (ajv), DB-driven flow configs, and design-time tooling - Build and evolve the AI systems behind Support Assistant , the player-facing support chatbot, and Agent Support Assistant, the AI copilot used by customer support agents - Integrate with MCP servers…