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Steward RiosSR
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Steward Rios

@johanrios

Data Engineer, Data Analyst & Applied ML | Snowflake, dbt, Spark, BigQuery | MSc Data Science | Medellín, Colombia

Colombia
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I’m a data engineer with a Mathematical Engineering background and an MSc in Data Science from EAFIT University, based in Medellín. I build and migrate data pipelines and warehouses (Snowflake, dbt, Spark/PySpark, BigQuery, Teradata) and apply machine learning on top of them: customer segmentation, churn, clustering and fraud detection.

I’ve worked across retail and consumer, insurance and health analytics, and large-scale data migrations. I led a team of eight analysts at Rappi and later served as a product owner on a global data migration at Philip Morris International, which taught me to turn stakeholder needs into well-scoped data products. I’ve also worked in health policy analytics (EPS Sura, IETS) and set up a company’s first analytics roadmap.

I’m comfortable owning the whole path from raw data to a decision: modeling, pipelines, validation and clear communication with business and US-based teams. I’m looking for remote data engineering or analytics engineering roles, ideally with a Snowflake/dbt or Databricks stack.

Experience

Work history, roles, and key accomplishments

IG
Current

Data Analyst — Customer Segmentation

Insight Global

May 2026 - Present (5 months)

Optimized Snowflake SQL queries and Python-based KMeans clustering for customer segmentation at Pizza Hut/Yum! Brands. Architected a dbt project to translate segmentation logic into production-ready Snowflake models.

II

Senior Data Analyst

Instituto de Evaluación Técnica en Salud (IETS)

Feb 2026 - Jul 2026 (5 months)

Designed, calculated, and implemented an indicator system to measure the efficiency of MSPS health infrastructure projects using SQL, Python, and Power BI.

II

Semi-Senior Data Analyst

Instituto de Evaluación Técnica en Salud (IETS)

Aug 2024 - Dec 2024 (4 months)

Priced the additional UPC cost of incorporating interdisciplinary care teams for healthcare facilities using SQL, Python, and Power BI.

Education

Degrees, certifications, and relevant coursework

Datacamp logoDA

Datacamp

Associate Data Analyst in SQL, Data Analysis

Completed the Associate Data Analyst in SQL certification.

Datacamp logoDA

Datacamp

Associate Data Engineer in SQL, Data Engineering

Completed the Associate Data Engineer in SQL certification.

EAFIT University logoEU

EAFIT University

Master's in Data Science and Analytics, Data Science and Analytics

Pursued a Master's in Data Science and Analytics.

EAFIT University logoEU

EAFIT University

Bachelor of Science, Mathematical Engineering

Earned a Bachelor of Science in Mathematical Engineering.

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