Leonardo
Caliva

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Finished jobs

Website

leocaliva.com

Country

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Hourly rate

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About me

Senior developer, 5+ years building AI automation and data-extraction systems that run in production — not demos. I turn manual, messy work into reliable pipelines and AI agents that ship fast. What I build: • AI assistants & chatbots — a WhatsApp assistant handling real customer conversations (support & sales) in production, powered by LLMs. • Document & data extraction — OCR pipelines turning invoices, receipts and PDFs into clean, structured data, validated against official registries. • Web scraping — anti-bot scrapers and 24/7 price monitors that keep running when sites fight back. • Automation & MCP servers — n8n workflows and custom MCP servers wiring business tools into AI agents. Stack: Python, FastAPI, Playwright, n8n, MCP, Anthropic/OpenAI APIs, Docker, PostgreSQL/SQLite, React/Next. I ship fast: a focused scraper, automation or MCP server in 24–72h. Tell me the outcome you need and I'll deliver. Paid in USDT welcome.

https://www.linkedin.com/in/leonardoprimero/

Work experience

Independent Projects

January 2021 – Current time

Job title

AI Automation and Data Extraction Engineer

Work experience & achievements

Built and maintained end-to-end AI systems in production using Python. Implemented RAG pipelines and document ingestion workflows for LLM-powered applications. Developed backend APIs and automation scripts integrating AI with real-world data sources. Responsible for system architecture, deployment, and long-term reliability of AI solutions.