I worked on both online and offline storage systems at petabyte scale. Here are some highlights:

• Led the productionalization of our first change data capture system built on Apache Flink

• Built a petabyte-scale MySQL-to-S3 archival system for cost-effective live serving

• Reduced MySQL replication lag from hours to sub-second

• Developed an automated pipeline for high-risk MySQL DDL migrations

I worked on high availability initiatives on the merchant services team, here are some highlights:

• Resharded billions of records to mitigate projected cross-region query latency increase in preparation of a multi-regional active-active setup

• Reduced $1.3M in annual AWS costs by right-sizing key MongoDB clusters

• Created a data access library to transparently migrate queries to a new, highly-available data plane

I worked on the merchant onboarding team, here are some highlights:

• Built a session-based onboarding microservice using Kafka, Cassandra, and gRPC

• Reduced local microservice build times by 80% with incremental Gradle builds

• Migrated multi-factor authentication to a new Java microservice