GPS location consent trigger (60%+ opt-in during high-risk auth and card activation)

Customer-initiated card merchant blocking interface (5%+ improvement in transaction decline precision)

Revamped Cash App Card transaction receipts (in-app and email) with much richer transaction context to customers

Developed the traffic-based canary deployment system against production services to reduce the percentage of bad code release incidents

Conducted load tests for Coinbase Web and QR Code to prepare for the 2022 Super Bowl Ad and collaborated with the Retail team to identify and remove performance bottlenecks

Implemented and maintained the incident management tool (in-house application made with Slack bot) to support team/service-wide paging and re-shape the response process for major incidents

Improved developer productivity by facilitating the write-up of postmortem documents

Deployed the API service into AWS API Gateway, S3, and SQS/SNS

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