Katherin Hernandez Toncel
Data Engineer
Professional profile
Data Engineer with 8+ years building and operating cloud data infrastructure on AWS and GCP . Expert in Snowflake , Airflow , Fivetran , Redshift , BigQuery , PostgreSQL , MySQL , ETL/ELT pipelines , and Python automation
Work experience
Centralized ingestion from multiple sources, automated data workflows, improved operational efficiency, enabled low-latency PostgreSQL data sync.
Major achievementDesigned AWS Data Lake (S3, Glue, Athena), automated workflows with Airflow and Python, implemented PeerDB for real-time PostgreSQL replication.
Optimized BigQuery, Cloud SQL, Redshift, RDS, DynamoDB; automated deployments, ensured high availability and consistency.
Major achievementManaged multi-cloud data infra (GCP, AWS), automated MongoDB deployments with Ansible and Python, optimized cloud workloads.
Centralized data from PostgreSQL and MySQL, migrated production databases to AWS, reduced downtime, automated tasks.
Major achievementDesigned ELT pipelines with Airflow and Redshift, led AWS database migrations, automated validation with Python.
Education experience
Universidad cooperativa de colombia | Profesional
