Jesús Copado - Building an AI Recruiting Platform from Scratch

At Nova, we built an AI recruiting platform that searches through +800M profiles using a conversational agent, adaptive scoring, summary generation, and intelligent data normalization. But AI isn't just in the agent, it's in every layer of the product. In this talk I'll share concrete production lessons: LangGraph for the agent, OpenRouter for multi-model routing, Opik for observability, a normalization pipeline where the LLM is the last resort, the cost-latency-intelligence triad for choosing models, why a smarter model isn't always better at function calling, and how we turned our backend into an MCP server. ____ Síguenos en nuestras redes sociales Web: https://sirviendocodigo.com/ LinkedIn: https://www.linkedin.com/company/sirviendo-codigo/ X: https://twitter.com/sirviendocodigo Instagram: https://www.instagram.com/sirviendo.codigo/ TikTok: https://www.tiktok.com/@sirviendo.codigo #sirviendocodigo