Building clean data pipelines & decision‑ready analytics.

SQL • Python • ETL • Snowflake • dbt • Power BI • AWS. Focused on reliability, documentation, and business impact.

See Projects bernal67@gmail.com
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Featured projects

Three quick, end‑to‑end builds that demonstrate ingestion, transformation, modeling, and reporting.

Customer Orders ETL

Customer Order ETL

S3 → Python (pandas) → SQL with data quality checks and KPI queries (LTV, repeat rate).

PythonpandasS3SQL
Snowflake dbt Marketing

Snowflake + dbt

Seeds, staging, marts, KPIs (ROI, CPC, CPA), lineage, and docs — modern data stack demo.

SnowflakedbtSQL
Power BI Sales Dashboard

Power BI Sales Dashboard

Executive KPIs with drilldowns by store, product, and rep. Theme + DAX + Power Query included.

Power BIDAXPower Query

About

I design and operate reliable data workflows: ingestion → transformation → modeling → BI. Experienced with AWS (S3, RDS, Redshift), Snowflake, dbt, and Power BI. I care about code quality, documentation, and measurable business outcomes.

SQLPythonETLAWSSnowflakedbtPower BIData Modeling

Contact

Want to collaborate or hire me? Reach out via email:

bernal67@gmail.com