Open to opportunities

Luis Vélez

@luisvlez

Message

Senior Data & Analytics Engineer building cloud data platforms and executive BI with ML impact.

El Salvador

Message

What I'm looking for

I’m looking for a role where I can own cloud data platforms and BI end-to-end, modernize ELT orchestration, and apply BigQuery/ML (including RAG/LLM) to deliver measurable business outcomes—open to U.S. relocation with visa sponsorship.

I’m a Senior Data & Analytics Engineer with nearly 10 years of experience building modern cloud data platforms, ELT pipelines, and executive analytics for fintech and U.S.-based organizations. I turn raw, multi-source data into decision-ready insight—re-architecting pipelines and delivering dashboards that drive business and stakeholder confidence.

My core expertise spans BigQuery, Python, SQL, GCP, and Apache Airflow, alongside the BI stack (Looker, Power BI, Tableau, SiSense). I’ve applied predictive modeling with BigQuery ML for payment and collections prediction, and I’ve built GenAI systems for compliance automation using RAG/LLM approaches.

Most recently, I’ve led end-to-end data engineering strategy for a fintech business, reworking ingestion orchestration into Apache Airflow-managed Python/Polars ELT pipelines on BigQuery and Cloud Storage—cutting processing cost and runtime by ~80%. I also tune BigQuery performance with partitioning/clustering and deliver investor-ready executive dashboards in Looker and Power BI.

Experience

Work history, roles, and key accomplishments

Current

BI & Data Engineering Lead

Current

Ábaco

May 2025 - Present (1 year 2 months)

Owned the data engineering strategy powering fintech growth across Latin America, leading end-to-end architecture, pipelines, and executive analytics. Re-architected ingestion to Apache Airflow-orchestrated Python/Polars ELT into BigQuery/Cloud Storage, cutting processing cost and execution time by ~80%, and delivered investor-facing dashboards in Looker and Power BI.

Apache Airflow Python Polars Google Cloud Platform BigQuery Cloud Storage Pub Sub Cloud Run Looker LookML Power BI SQL Partitioning Clustering Performance Tuning

Data Engineer Lead

Telus Digital El Salvador

Nov 2023 - May 2025 (1 year 6 months)

Led data engineering and analytics for cross-departmental reporting, translating business requirements into scalable solutions. Built Looker dashboards (LookML), delivered Power BI and SiSense reporting, and optimized SQL and database performance alongside Python ELT pipelines orchestrated with Apache Airflow.

Looker LookML Power BI Sisense Apache Airflow Python SQL Database Performance Tuning

Independent Data & Analytics Consultant

AML Partners

Jan 2021 - Jan 2024 (3 years)

Built BI reporting and real-time SiSense dashboards for financial compliance, risk, and AML monitoring, including data-driven models supporting fraud detection. Streamlined reporting processes, reducing reporting time by 40%.

Sisense BI Reporting AML Fraud Detection Risk & Analytics

Independent Data & Analytics Consultant

Brusus

Jan 2021 - Jan 2024 (3 years)

Created Looker dashboards for performance tracking and engineered pipelines to automate reporting and support data integration. Focused on improving analytics delivery for U.S. client workflows.

Looker LookML Data Integration

Independent Data & Analytics Consultant

Manhattan & Associates

Jan 2021 - Jan 2024 (3 years)

Migrated and managed GCP data pipelines and built SQL reporting solutions. Contributed to data models for predictive analytics.

Google Cloud Platform Data Pipelines SQL Predictive Analytics Data Modeling

ETL Developer

Telus Digital El Salvador

Oct 2019 - Dec 2021 (2 years 2 months)

Designed and implemented ETL workflows in Talend and Python, orchestrated with Apache Airflow. Translated requirements into LookML models and Explores, and automated data ingestion and transformation to improve pipeline reliability and efficiency.

Talend Python Apache Airflow ETL Data Ingestion data transformation LookML

Data Engineer & Analytics

Teleperformance El Salvador

Jul 2016 - Oct 2019 (3 years 3 months)

Unified data ingestion from multiple sources into an on-premises SQL Server data warehouse and optimized long-running queries using warehousing best practices. Built SSIS ETL pipelines and developed Power BI dashboards for KPIs and Balanced Scorecards.

SQL Server SSIS ETL On Prem Data Power BI KPIs Balanced Scorecard SQL Optimization

Education

Degrees, certifications, and relevant coursework

Universidad Francisco Gavidia

Bachelor of Engineering in Computer Science, Computer Science

Earned a Bachelor of Engineering in Computer Science from Universidad Francisco Gavidia.

Universidad Don Bosco

Professional Certification, Database Administration (Oracle)

Completed a professional certification in Oracle Database Administration, covering ERD modeling, stored procedures, and enterprise data management and optimization.