Machine-Learning Programmer (AI)

Location: Office-based in Montreal, Canada, or Chengdu, China

Company

hirify.global is a global video game company creating original gaming experiences across teams in more than 30 countries.

What you will do

• Lead the technical direction of DocGPT’s retrieval pipelines, including chunking, semantic indexing, vector search, and reranking.
• Define evaluation standards, datasets, and quality metrics for AI-generated responses.
• Design the integration of large language models in a multi-tenant environment, including context management, prompt engineering, cost control, and agent-based capabilities.
• Identify architectural limitations and propose improvements before they affect users.
• Mentor junior and mid-level team members on machine-learning practices and experimental rigor.
• Act as a technical point of contact for client teams and stakeholders on AI topics.

Requirements

• 5+ years of experience in applied machine learning for production information-retrieval systems or NLP.
• Strong Python skills and experience with LangChain, LlamaIndex, and HuggingFace Transformers.
• Experience with RAG architectures, embedding models, vector databases, and cross-encoder reranking.
• Experience with LLM APIs such as Claude and OpenAI GPT, plus advanced prompt engineering techniques.
• Experience with RAG evaluation frameworks, MRR/NDCG metrics, and evaluation dataset development.
• Familiarity with AWS, Databricks, MLflow, Feature Store, containerized environments, and technical leadership.

Culture & Benefits

• Collaborative workplace focused on creativity, professional growth, learning, and well-being.
• Inclusive environment committed to diversity and equal opportunity.
• Benefits package supporting employee well-being.