About this role
About the Role Ubisoft is seeking a Technical Lead to own the AI components of DocGPT, Ubisoft's internal knowledge assistant platform. You will set tooling standards, guide the team, and translate sometimes ambiguous requirements into robust, scalable solutions across retrieval, LLM integration, and multi-tenant contexts.
What You'll Do
- Define and oversee the technical direction of retrieval pipelines: chunking, semantic indexing, vector search, and reranking.
- Establish evaluation standards to ensure response quality is a top priority in the development cycle.
- Define the approach to integrating large language models (LLMs) in a multi-tenant context: context management, prompt engineering, cost control, and evolution toward agent-based capabilities.
- Proactively identify limitations of the current architecture and propose improvements before they impact users.
- Mentor junior and mid-level team members on ML best practices and experimental rigor.
- Serve as a trusted point of contact for client teams and stakeholders on AI-related topics.
What We're Looking For
- 5+ years of experience in applied machine learning for information retrieval systems or NLP in production.
- Proficiency in Python and ML/NLP frameworks: LangChain, LlamaIndex, HuggingFace Transformers.
- Proven experience with RAG architectures: embedding models (OpenAI, Cohere, BGE), vector databases (Qdrant, pgvector, Weaviate, Pinecone), and reranking (cross-encoders).
- Proficiency with LLM APIs (Claude, OpenAI GPT) and advanced prompt engineering techniques (few-shot, chain-of-thought, structured outputs).
- Experience with RAG evaluation frameworks: RAGAS, MRR/NDCG metrics, and building evaluation datasets.
- Familiarity with AWS and Databricks cloud environments (MLflow, Feature Store) and containerized environments.
- Demonstrated technical leadership and comfort with ambiguity; excellent communication skills.
Compensation & Benefits
- Generous benefits package and a collaborative environment that emphasizes professional growth, learning opportunities, and well-being.
- Working at Ubisoft MTL offers a creative, connected workplace with opportunities to shape the future of entertainment.