22 hours ago
Montréal, CanadaStaff+
Responsibilities
- Define and oversee retrieval pipelines covering chunking, semantic indexing, vector search, and reranking.
- Establish evaluation standards, datasets, and quality practices for the DocGPT platform.
- Set the approach for multi-tenant LLM integration, including context management, prompt engineering, cost control, and agent-based evolution.
- Identify architectural limitations and propose proactive platform improvements.
- Mentor junior and mid-level team members on machine learning practices and experimental rigor.
- Advise client teams and stakeholders on AI-related topics.
Requirements
- At least 5 years of production experience in applied machine learning for information retrieval systems or NLP.
- Proficiency in Python, LangChain, LlamaIndex, and HuggingFace Transformers.
- Experience with RAG architectures, including OpenAI, Cohere, and BGE embedding models; Qdrant, pgvector, Weaviate, and Pinecone vector databases; and cross-encoder reranking.
- Proficiency with Claude and OpenAI GPT APIs and advanced prompt engineering techniques such as few-shot prompting, chain-of-thought, and structured outputs.
- Experience with RAGAS, MRR/NDCG metrics, and building evaluation datasets.
- Familiarity with AWS, Databricks, MLflow, Feature Store, and containerized environments.
- Demonstrated technical leadership, comfort with ambiguity, and strong communication skills.
Benefits
- Permanent contract.
- Office-based work arrangement.
- Collaborative environment focused on professional growth, learning opportunities, and well-being.
- Generous benefits package.
Categories
About Ubisoft
Ubisoft develops and publishes video games for console, PC, and mobile players worldwide, monetized through premium titles, downloadable content, live services, and the Ubisoft+ subscription. Founded in 1986 and headquartered in Saint-Mandé, France, it operates studios globally and is publicly traded on Euronext Paris. Franchises include Assassin’s Creed, Far Cry, Tom Clancy’s Rainbow Six, and Just Dance.