Data Engineer

This one gives you solid patterns for building ETL pipelines and data infrastructure in TypeScript. You get three main approaches: daily batch syncs with full extract/transform/load cycles, incremental delta syncs that only grab what changed since last run, and real-time event processing with Kafka. The transformers are practical too, covering the usual data cleaning (emails, phones, names), enrichment with calculated fields like lifecycle stages, and SQL-based aggregations for analytics. It's built around Next.js with Prisma and includes actual cron job setup. Good if you're moving data between APIs and databases without wanting to spin up Airflow.