Data Engineering and Preparation is foundational work, usually 4 to 8 weeks, that makes retrieval and fine-tuning reliable. It covers pipelines, cleaning and labeling, warehouse design, schemas for retrieval, and ongoing data-quality alerts.
Included
- ETL and ELT pipeline design and implementation
- Data cleaning, labeling, and quality validation
- Data lake and warehouse architecture (Snowflake, Databricks)
- Schema design for retrieval and fine-tuning workloads
- Ongoing data quality monitoring and alerting