Artificial Intelligence Research Scientist

Há 7 dias

São Paulo, São Paulo, Brasil beBeeResearch Tempo inteiro R$80.000 - R$150.000
AI Researcher Role

We are seeking a highly skilled AI Researcher to join our R&D team. You will be working on designing, training, and optimizing Large Language Models (LLMs) that power real product features and internal tools.

This is not a prompt engineering or research assistant-focused role. We are looking for someone who has a deep understanding of LLMs, including transformer internals, tokenization, and embeddings.

As an AI Researcher, you will be responsible for:

  • Train and fine-tune LLMs using multi-GPU and distributed setups.
  • Analyze model performance, debug failures, and implement improvements.
  • Work with curated and synthetic datasets, including classification and generation tasks.
  • Design experiments, track results, and iterate quickly with tools like MLflow.
  • Write clean, production-ready code and collaborate via GitHub.

Requirements for this role include:

  • Strong understanding of LLMs, including transformer architecture, tokenization, and embeddings.
  • Proficiency in Python; experience with PyTorch or JAX; comfortable with Bash and Git.
  • Training experience: You have trained models beyond notebooks. Bonus if you have worked with mixed precision, DeepSpeed, or multi-node training.
  • Systems mindset: You understand trade-offs - throughput vs memory, latency vs accuracy.

Bonus points for experience with Hugging Face Transformers, Datasets, Accelerate, and familiarity with Kubernetes, Ray, or custom training infrastructure.

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