AI Developer Jobs in Brazil

AI Developer (Remote, Brazil)

Build, fine‑tune, and deploy ML and LLM‑backed features for products serving users in Brazil and global markets, collaborating remotely with distributed teams.

Key Responsibilities

• Design and implement ML/LLM services (APIs, batch jobs, streaming pipelines) with production reliability and measurable quality targets.
• Create evaluation harnesses for LLM training pipelines, including rubric‑based grading, pairwise preference testing, and prompt regression suites.
• Implement evaluation and monitoring to measure model quality (prompt evaluation, QA evaluation, offline/online testing) and drive model performance improvement.
• Contribute to RLHF‑adjacent workflows by integrating human feedback signals, preference data, and safety policies into training and evaluation loops.
• Partner with data operations to define annotation guidelines, improve training data quality, and resolve edge case...