Leandro Kellermann de Oliveira

Data-engineering, developer-workflow, and research Agent Skills (Spark 3.5+, Delta Lake, dbt, ADR/PR workflows, source-grounded research).

PySpark, pytest, ODCS data contracts, and dbt scaffolding skills.

ADR authoring, commit message suggestion, and pull request creation skills.

Research method skill for conceptual/terminology questions grounded in primary sources.