Alex Kargin

Alex Kargin is an independent Data and ML/AI Engineer based in the United States. His work centers on the engineering side of analytics and AI: how data lands, how it's modeled, how production ML systems behave under load, and how the rest of the stack turns those signals into something useful.

Through kargin-utkin.com, he publishes long-form technical articles on database performance, pipeline patterns, streaming systems, and the practical use of ML in production. The companion learn platform offers structured 7-week courses on PostgreSQL, ClickHouse, Python for Data Engineers, Apache Airflow, Kafka, PySpark, BigQuery, MongoDB, and other core stack components.

LegacyToCloud is one of the projects under that umbrella — a database migration tooling effort focused on making moves between MSSQL/MySQL/PostgreSQL and Snowflake safer and more predictable. It exists because most production migrations Alex has seen are underestimated by an order of magnitude in cost and complexity.

Through InnovaTek Solutions Inc, Alex also runs Legacy2AI engagements — modernizing legacy enterprise data and analytics into AI-ready foundations through staged intake, technical analysis, and roadmap delivery.