About this role
Post-Training Research Scientist (LLMs) — Experimental Track at Vetto. Location: São Paulo, Sao Paulo, Brazil. Role: design experiments, build datasets, prototype signals Requirements: PhD in ML/AI or equivalent; hands-on LLM post-training experience; strong Python + PyTorch/JAX; fluent English. Category: Research and Development (R&D) Seniority: Senior Level Tools: Python, PyTorch, JAX, LLMs, SFT, RLHF, RLVR Commitment: Full Time, Contract Workplace: Remote Languages: English