Sergio
AI Automation & RAG Engineer
AI Automation & RAG Engineer focused on building AI systems that solve real business problems.
Founder of Coldia, an AI-powered sales intelligence platform that researches B2B companies, identifies buying signals and pa...
$25/hr
(0)
Services/Products
(2 services)
SERVICE
SERVICE
Portfolio
(3 projects)
Mexican Law Assistant
Coldia
Docup
My Specialities
Development Stacks
AI Development & Engineering
Specialities
SaaS Platforms
AI Agents
AI Strategy & Consulting
Skills
DevOpsLangchainRAG SystemsCustom AI ToolsTask Automation BotsVector Database Engineering (Pinecone, Weaviate, Chroma)
Work Experience
Coldia
Coldia
March 2026 - Present
Monterrey
AI Automation & RAG Developer
Self-Employed
April 2026 - Present
Monterrey
AI Automation Developer
Self-Employed
April 2026 - Present
Monterrey
Agentic AI Develope
Self-Employed
April 2026 - Present
Monterrey
Biography
AI Automation & RAG Engineer focused on building AI systems that solve real business problems.
Founder of Coldia, an AI-powered sales intelligence platform that researches B2B companies, identifies buying signals and pain points, and generates personalized outreach assets including cold emails, LinkedIn messages, and call scripts.
Experienced in developing production-ready RAG systems, AI document assistants, and agentic workflows using Python, FastAPI, vector databases, and LLM APIs.
My work includes:
• AI sales research and outreach automation
• RAG pipelines with contextual retrieval and reranking
• AI document assistants for PDFs and internal knowledge bases
• FastAPI backend developm...
Hourly Rate
$25
per hour
AI Automation & RAG Engineer | Mexico | Task Automation Bots, Custom AI Tools, Vector Database Engineering (Pinecone, Weaviate, Chroma), Langchain, DevOps
