JCS.

Tech lead for data infrastructure org with multiple sub teams. Tech stack includes relational databases (Cockroach, Postgres), data lakes (Hudi, Iceberg), data processing (Flink, Spark, Argo), query engine (Trino), real time analytics database (Pinot), business intelligence (Superset, Jupyterhub) on top of Kubernetes and Istio infrastructure.

Owner and lead of 2 critical research infrastructure products used by 95%+ of the internal modeling community on a daily basis. Both are massively distributed systems utilizing TB-PB of memory (RAM).

Tech lead for a new buy-side advertising product. Majority of my work was navigating the internal complexity of Google's ads stack, worked closely with multiple partner teams of 10-100 engineers. I personally designed and made changes to those systems when necessary.

Worked on the low latency execution systems that trades equities, futures and currencies (FX). Also owned the live trading monitoring system and tick-based simulator.