John Sebastian Cardona

I build data systems that make information reliable, from raw ingestion to analytics-ready models. With 4+ years of experience across Healthcare and Manufacturing, I specialize in ETL/ELT pipelines, API integrations, and cloud data infrastructure using the modern data stack. At Third Way Health, I design Python-based reconciliation pipelines and audit scripts that maintain data accuracy across EHR and Salesforce integrations, cutting manual QA effort and achieving data accuracy across systems. My Industrial Engineering background means I think in systems and processes, not just queries. I approach every data problem with the same rigor: define the architecture, validate the data, automate the workflow, document the decisions. Tech stack: Python (pandas, requests, BeautifulSoup) · SQL (PostgreSQL, SQL Server, MySQL) · dbt · Google Cloud Platform (GCS, BigQuery, CLI) · GitHub Actions · REST APIs · Tableau · Power BI · Salesforce · Postman Open to: Analytics Engineer · Data Engineer · Senior Data Analyst | Remote (U.S., LATAM or global) 📧 cardonajsebas@gmail.com 🌐 cardonajsebas.github.io