Brex Bank Infra - Providing the banking infrastructure that abstracts away the complexities of payment rails and tracking of funds flow.

Re-architected the Ad to lead attribution pipeline on a richer dataset of user-business interactions, resulting in a 30% lift in ad attributed leads and a 4x increase in pipeline performance.

Re-architected core daily ad campaign snapshot metrics calculating budget proration, daily ad spend, estimated and actual spend pacing, and maximum billable spend, resulting in a 2x increase in pipeline performance and greatly increased visibility in overall ad campaign performance.

Migrated Ads recall system from HAProxy to an Envoy mesh and moving commonly interacting services to the same geographical cluster, greatly reducing P95 to P99 latencies.

Improved distributed ad impression to click attribution Spark ETL pipeline by using pre-computed metrics from historical runs, resulting in a 2x increase in performance and 2x reduction in operational costs.

Designed and Implemented parallelized payments reconciliation monitoring system, facilitating fast identification of data synchronization and payment collection errors

Refactored payment collections to operate on AWS Step Functions, facilitating a more parallelized and resilient collection workflow

Implemented prioritization of credit card vaulting based on currency and region, facilitating more resilient client onboarding flows and credit card processing during outages

Implemented containerization of resources to applications, facilitating separate isolated environments of the Wealthsimple platform.

Refactored distinct portfolios into single versioned portfolios, facilitating automatic portfolio assignment during client onboarding.

Integrated project repository messages and alerting into internal build tooling, allowing for immediate setting and displaying of important messages while preventing deployment conflicts.

Integrated W3C Payments Request-like Facebook Messenger payments APIs into the Shopify service, requiring full stack integration from client-side JS to back-end decryption

Expanded merchant chargeback dispute coverage and success rates by automatically providing customer PoS signatures on merchant chargeback dispute submission

Implemented shop percentage based disabling of payment gateways to quickly respond to service outages with minimal disruption and downtime