Austin Hay
Operating Partner @ Khosla Ventures
Reverse ETL activation
Use this skill when you need to turn a scored, segmented audience sitting in the warehouse (BigQuery, Snowflake, Redshift) into live GTM motion, syncing accounts, contacts, and computed traits out to the CRM, ad platforms, and sequencing tools. It encodes the judgment that keeps reverse ETL from quietly polluting every downstream system: identity resolution before any write, a change-data-capture diff so only real deltas move, field-level mapping with type and format guards, suppression and consent gates, sync scheduling matched to each destination's rate limits, and a mandatory dry run plus row-count reconciliation before and after the live push. Every threshold (match-confidence floor, batch size, sync cadence, max-delete guard, suppression rules) is a tunable default. Each run produces a validated sync plan, a dry-run diff of adds, updates, and suppressions with counts, and a reconciliation report after the live sync.