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AI Developer

Epsilon Solutions

 

Toronto, ON, Canada

Posted On: 30+ days ago
Experience: 8+ years
Availability: Hybrid
Openings: 1
Category: AI Developer
Tenure: Full-time Only
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Description

You will design, build, and deploy complex LLM-powered applications, including RAG systems and intelligent agents.

This role is hybrid.

Responsibilities

  • Design LLM applications focusing on tasks, context, tools, and feedback loops.
  • Build and refine Retrieval Augmented Generation (RAG) systems with quality chunking, retrieval, and citation logic.
  • Orchestrate agents by implementing planning, decomposition, tool-calling, and memory stores.
  • Deploy solutions into production while managing monitoring, evaluation, and cost.

Required Skills

  • 4-8+ years in software or ML engineering.
  • 1-3+ years experience with LLM, agent, or RAG systems.
  • Strong proficiency in Python or TypeScript, including async programming and API design.
  • Hands-on experience with OpenAI/Azure OpenAI (Assistants API, GPT-4.1+/o-series) and embeddings.
  • Practical expertise building RAG using a vector DB and retrieval strategy beyond basic semantic search.
  • Experience with agent frameworks such as LangGraph, AutoGen, CrewAI, or OpenAI Assistants with tools.
  • Familiarity with prompt engineering, tool/function calling, schema design, and context windows.
  • Proven production deployment experience with observability and cost management.

Education

Any Gradute

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