Jose David Batista Zerpa

I design and build data solutions with Python for companies that need to stop relying on manual processes, scattered spreadsheets, and expensive licensed tools.

What I do specifically:

→ Automated ETL Pipelines: I connect your data sources (APIs, CRMs, databases, exports, web scraping from your client's or supplier's website if they don't have APIs), transform, and load clean and validated information where you need it — BigQuery, PostgreSQL, MySQL, MySQL server, or any destination. With retries, alerts, and scheduling included.

→ API Integrations and Process Automation: If your team wastes time on repetitive tasks (mass mailings, data synchronization between platforms, information extraction), I automate it. I have worked with WhatsApp Business API, Twilio, CRMs, and enterprise portals.

→ Interactive Web Dashboards: Browser-accessible data visualization, without licenses. I develop with Streamlit, Dash, or React depending on project complexity. Your data, in real-time, accessible to anyone on the team.

→ Intelligent Automation with AI: Integration of language models into operational workflows to classify documents, generate automatic reports, or create assistants based on your internal data.

My current profile: I work as an Analytics Engineer at Becall, where I manage data pipelines, automations with enterprise APIs (SSO + OTP), and analytical consumption on BigQuery. I have taken systems from ~30% reliability to ~95%, processing over 1,000 records daily in production.

Stack: Python (Pandas, requests, SQLAlchemy, FastAPI/Flask), BigQuery, PostgreSQL, n8n, Make, Streamlit, Dash, Docker, Git.

I work 100% remotely from the Canary Islands.

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