AI Engineer - Azure AI / LLM / RAG - International Institution

Full-time Informática y tecnología

NTT DATA is looking for an AI Engineer for one of our international clients.

Your main responsibility will be to own the cloud fine-tuning of open-source LLMs (e.g., Llama 3.x 8B) on Azure - delivering both Supervised Fine-Tuning (SFT) and Reinforcement Fine-Tuning (RFT) end-to-end: data, training, evaluation, and deployment.

This role is hybrid, as onsite presence in the Valencia office will be required.

You will be responsible for:

• Run SFT on Azure AI Foundry (serverless fine-tuning) and Azure Machine Learning (managed GPU compute).
• Implement training with TRL SFTTrainer + PEFT (LoRA / QLoRA), bitsandbytes 4‑bit quantization, and the Hugging Face stack (transformers, datasets, accelerate).
• Prepare and validate training data: chat-format JSONL, curation, deduplication, leakage‑safe train/valid/test splits.
• Scale training with DeepSpeed / multi‑GPU and optimize GPU memory and throughput. <...