Juan David Trejos

I’m a Data Operations Analyst and software engineering student focused on making data accurate, consistent, complete, and reliable. I support data operations end to end—ETL workflows, data ingestion, validation, and quality assurance—so teams can trust what downstream systems and decisions depend on.

In my recent experience, I improved data accuracy to 100% through reconciliation and QA controls, reduced data inconsistencies by 20% using SQL-based cleansing, normalization, mapping, and cross-platform validation, and automated ETL/data ingestion workflows to cut manual processing by 15 hours weekly. I also strengthened data consistency and completeness by implementing automated data quality assurance checks and anomaly detection procedures.

I’m equally comfortable validating high-volume real-time structured data feeds, monitoring for anomalies, and resolving data quality issues across multiple sources to reduce operational incidents and speed up issue resolution. I take pride in attention to detail and in documenting workflows clearly so data operations run smoothly in fast-paced environments.