GenAI Engineer (Python, RAG, LangChain, LangSmith)
Apptad Inc
Full Job Description
Job Title: GEN AI Engineer (Python,RAG, LangChain, LangSmith)
Job Location: Montreal, QC (3 days in a week)
Job Type: Full-Time
Our challenge
We are looking for a Senior AI/ML Engineer with expertise in Retrieval-Augmented Generation (RAG), vector databases, multimodal AI, and prompt engineering. The candidate will be responsible for building intelligent AI applications that leverage structured and unstructured enterprise data.
Key Responsibilities
• Design and implement enterprise-scale RAG pipelines.
• Build and optimize semantic search solutions using vector databases.
• Develop multimodal AI applications capable of processing text, images, documents, and other data formats.
• Create and optimize prompts for improved LLM performance and accuracy.
• Develop data ingestion, chunking, embedding, retrieval, and ranking strategies.
• Evaluate and improve AI solution quality, accuracy, and latency.
• Collaborate with cross-functional teams to integrate AI capabilities into enterprise applications.
Required Skills
• Strong proficiency in Python.
• Hands-on experience building RAG solutions.
• Experience with vector databases such as Pinecone, Weaviate, Milvus, Chroma, or OpenSearch.
• Strong understanding of embeddings, retrieval strategies, and semantic search.
• Expertise in Prompt Engineering.
• Experience building Multimodal AI solutions.
• Knowledge of LLMs and foundation models.
• Experience with Amazon Bedrock and AWS AI services.
• Familiarity with LangChain for RAG implementations.
• Knowledge of evaluation frameworks and AI observability tools.
• Experience deploying AI/ML applications in production environments.
Nice to Have
• Knowledge of Agentic AI concepts.
• Experience with LangGraph or multi-agent architectures.
• Exposure to MLOps and model deployment pipelines.
Land Acknowledgement
The Linux Association of Canada respectfully acknowledges that our home in Saskatoon, Saskatchewan, is located on Treaty 6 Territory and the Homeland of the Métis. These lands have been home to First Nations peoples for thousands of years, including the Cree, Dakota, Nakota, and Saulteaux, who maintain deep and enduring relationships with the land and the South Saskatchewan River.
We are grateful to the First Nations and Métis peoples who have cared for these lands for generations. We honour their enduring relationship with the land, their cultures, histories, and contributions, and we offer our respect and sincere gratitude as we live, work, learn, and build community here.


