Open to opportunities

Juan Valbuena

@juanvalbuena1

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Analytics consultant specializing in data engineering and BI to drive actionable business insights.

Colombia

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What I'm looking for

I’m looking for a role where I can build end-to-end data solutions—engineering, BI, and data quality—so teams get trustworthy insights for strategic decisions and operational efficiency, ideally in environments overlapping U.S. time zones.

I’m an analytics consultant with 6+ years working across data, business intelligence, and analytics engineering in both startups and consultancy environments. I turn complex datasets into actionable insights that improve strategic decisions and operational efficiency.

In recent work, I led data-quality validation for a DynamoDB to Supabase migration for the Healthy Minds Program. I verified migration completeness, deterministic identity resolution, and foreign-key integrity across a DuckDB/S3 silver layer and Supabase Postgres, then documented evidence and an engineering handoff.

I’ve also optimized high-scale analytics platforms for major brands. At Starbucks, I tuned SQL/PySpark pipelines and helped cut end-to-end processing time by 16%, saving six-figure annual cloud costs; for General Motors, I productionized connected-vehicle analytics on Databricks with GitHub Actions–based CI/CD for near-real-time behavioral insights.

Earlier, I built “source of truth” BI layers and instrumentation. As an embedded BI Engineer, I created version-controlled Snowflake models that unified call-center, chatbot, and CRM data into Tableau dashboards, and I built Snowplow + Databricks pipelines to measure user journeys and conversion behavior.

Experience

Work history, roles, and key accomplishments

DataOps Analyst

Kin + Carta (Valtech)

Jan 2024 - Sep 2025 (1 year 8 months)

Optimized large-scale data platforms across clients, including tuning high-volume SQL and PySpark pipelines at Starbucks to cut end-to-end processing time by 16% and reduce six-figure annual cloud costs. At General Motors, productionized connected-vehicle analytics on Databricks and implemented GitHub Actions CI/CD with Databricks Asset Bundles for near-real-time insights from 10M+ vehicles.

SQL PySpark AWS Databricks GitHub Actions Databricks Asset Bundles CI CD Delta Lake Apache Spark YAML TOML Data Testing Schema Drift Detection

Business Intelligence Engineer

CI&T Consulting

Mar 2022 - Dec 2023 (1 year 9 months)

Embedded BI Engineer for the Customer Experience organization, building version-controlled data models on Snowflake using Snowpark DataFrames to merge call-center, chatbot, and CRM feeds into a single analytics layer for Tableau dashboards. Also built and maintained Snowplow-based event instrumentation and Databricks pipelines for NinjaOne to quantify user-journey metrics and CTA engagement.

Snowflake Snowflake Snowpark Data Modeling Tableau Data Integration Call Center Analytics CRM Snowplow Databricks User Journeys CTA Form filling

Data Analyst

Habi

Nov 2020 - Jan 2022 (1 year 2 months)

Performed real estate data analysis using SQL to uncover trends in lead acquisition and customer behavior. Built Tableau and Looker dashboards for KPIs (CVR, CPL, and budget allocation) and ran A/B testing that improved lead conversion rates by 11% across all channels.

SQL Tableau Looker KPI Reporting A B Testing

Senior Data Analyst

Solvd

Led the data-quality process on a DynamoDB to Supabase migration for the Healthy Minds Program, verifying migration completeness, deterministic identity resolution, and foreign-key integrity. Authored query-backed migration evidence and engineering handoff documentation after quantifying data-quality findings.