Job Title: Senior AI/Backend Engineer Remote – Brazil - Remote Full-Time Builds the AI co-pilot backends (two chat services). Skills: Python on AWS Fargate, LLM integration via Amazon Bedrock (Claude, currently Haiku), RAG with Qdrant + Bedrock Titan, prompt engineering, AWS basics (Lambda, DynamoDB, Secrets Manager, EventBridge). Bonus: prior copilot/agent work