Ai engineer Internship

You’ll support the development and integration of open-source large language models (LLMs) within our product stack. Your mission will be to help evaluate, fine-tune, and deploy models like LLaMA, Mistral, Qwen, etc., adapted to real-world enterprise use cases. You’ll work closely with our founding team and AI engineers on:

• Selecting and benchmarking open-source LLMs
• Experimenting with inference optimization and fine-tuning (LoRA, QLoRA…)
• Testing model behaviors in production-like conditions
• Contributing to Sagy’s goal of running on fully open and efficient AI infrastructure

This role is perfect for a student passionate about applied AI and looking for hands-on experience with real constraints and a strong technical team.

The ideal candidate:

• Has hands-on experience with Python and frameworks like Hugging Face, PyTorch or Transformers
• Has experimented with open-source LLMs (LLaMA, Mistral, Qwen, etc.)
• Understands concepts like fine-tuning, RAG, quantization or LoRA — or is eager to learn quickly
• Is curious, autonomous, and comfortable working in a fast-paced startup environment
• Is excited by real-world constraints and building AI that ships
• Speaks French and English fluently

You’ll join a fast-moving AI startup as a core technical contributor.

We offer:

• A unique opportunity to work on open-source LLMs in production settings
• Close collaboration with experienced AI engineers and the founder (15+ years in software & AI)
• Flexible setup: part-time or full-time, in Louvain-la-Neuve or hybrid
• Freedom to explore, test, and ship your own ideas
• A real impact on product and strategy
• Internship stipend and potential for long-term collaboration or freelance continuation

This is a hands-on experience where you’ll learn fast, build real things, and shape how teams use AI at work.