Skip to content
Selected work

Case studies from real projects


Three projects from banking and insurance, with the problem, the architecture, the decisions I made and what changed. The numbers are the ones I can defend in an interview.

Clients are not named and the diagrams are illustrative: the work is covered by confidentiality.

  • Senior Data Engineer & Technical Lead · 2018–2023

    Moving a bank’s ETL to Azure Data Factory

    A large Caribbean bank’s warehouse loads no longer fit the nightly window. I led the move from Pentaho to Azure Data Factory.

    400
    ETL processes migrated
    −50%
    load time
    −40%
    manual testing
    • Azure Data Factory
    • Oracle
    • PL/SQL
    • SQL Server
    • DB2
    • Tableau
  • Data Integration Consultant · 2023–2026

    Launching a health-insurance platform in two countries

    A multinational insurer moved two countries to a new core platform. I architected and ran the data migration, with every relationship kept intact.

    55K
    insured members migrated
    2
    countries live
    100%
    data integrity
    • Oracle
    • PL/SQL
    • Python
    • PySpark
    • SQL*Loader
    • Oracle Data Pump
  • Data Integration Consultant · 2023–2026

    Automating Puerto Rico Law 95 reconciliation

    A mutual-aid health organization in Puerto Rico billed and reconciled by hand every month. I designed and built the pipeline that does it now.

    Manual → automated
    monthly billing and reconciliation
    • Python
    • SQL
    • Reconciliation
Let’s talk

Hiring a data engineer?

Tell me about the role or the project. I read every message and reply personally.