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Esteban Marin

@estebanmarin

Applied AI & Data specialist building LLM, RAG, Document AI, analytics and automation solutions with Python, SQL and BI.

Ecuador

Message

What I'm looking for

I’m looking for remote roles where I can apply Python, SQL, business intelligence, LLMs, RAG, and Document AI to solve data and automation problems. I’m open to full-time, part-time, or contract opportunities with international teams, including entry- and mid-level roles.

I implement and validate applied AI and intelligent automation workflows using LLMs, RAG, OCR, Document AI, AI APIs, Python. I turn information-intensive processes into structured, automated workflows with validation and exception handling.

I also deliver data analytics and business intelligence solutions using Python, SQL, BigQuery, Looker Studio, Power BI, to create dashboards, KPIs, and decision-ready insights.

My projects include document intelligence for legal review, specialized RAG systems, browser workflow automation, transcript severity classification, and customer segmentation using RFM and K-Means.

I combine process understanding, data analysis, and AI systems QA to build practical business solutions. I hold a Master’s degree in Data Science and Artificial Intelligence.

Based in Ecuador (GMT-5), I am open to remote full-time, part-time, and contract opportunities with international teams.

Experience

Work history, roles, and key accomplishments

Current

Applied AI & Automation Specialist

Current

Databitsai

Feb 2025 - Present (1 year 7 months)

Implement and validate applied AI workflows using LLMs, AI APIs, and structured outputs. Develop and evaluate RAG systems for specialized knowledge retrieval, including hallucination and failure-case analysis. Automate browser-based processes with Python and Playwright, integrating OCR, Document AI, cloud services, data validation, and exception handling.

RAG OCR APIs Playwright Python ETL Data Analysis KPIs Power BI Tableau QA Speech to Text Text To Speech

Current

Data Analyst

Current

Tary Analytics

Jul 2023 - Present (3 years 2 months)

Extract, transform, validate, and analyze data to generate insights that support strategic decision-making. Use Python and SQL for data processing and analysis, create interactive dashboards with Power BI and Tableau, and apply predictive modeling and machine learning techniques to business needs.

Python SQL Data Analysis Data Cleaning Data Validation ETL Data Visualization

Data Analyst & BI Consultant

Bilda Education

Jul 2025 - Jan 2026 (6 months)

Processed, cleaned, validated, and structured data for analysis and reporting. Created and managed tables and views in Google BigQuery using SQL. Developed interactive dashboards in Looker Studio, documented business metrics, and built KPIs to support operational monitoring and decision-making.

Python SQL Data Analysis Data Cleaning Data Validation ETL Data Visualization KPIs