Emiliano Mancuso
VP of Architecture and Data Engineering
About
Emiliano Mancuso is Vice President (VP) of Architecture & Data Engineering at Fresha, where he leads the teams designing the company's core data and infrastructure foundations across London, Warsaw, and Pristina. A hands-on architect, his work bridges platform engineering and distributed systems, enabling scalable, high-performance services across Fresha's global platform. Originally from Argentina, Emiliano brings deep expertise in data architecture and a passion for real-time, reliable systems.
Talk
Emiliano Mancuso | Snowflakes and Sparks: Iceberg Format Compatibility vs System Interoperability
Iceberg, Snowflake, Catalog
<p>At Fresha, Emiliano and his team tested whether Snowflake and dbt could become a direct write path into Iceberg: Amazon S3 storage, Lakekeeper as the REST catalog, and StarRocks as a downstream query engine. The tables were valid Iceberg, but the operational contract was weak: refresh semantics, catalog operations, file layout, table properties, compaction, and downstream performance all required workarounds or repair.</p>
<p>This talk is a production case study exploring the difference between format compatibility and system interoperability. “Supports Iceberg” is not enough, because the writer determines whether the table is actually portable, maintainable, and fast.</p>
2026-11-26
13:00
13:50