Selected technical work and open source contributions.
Designed and operated a cloud-native payment and virtual card issuing system on AWS, focusing on security isolation, scalability, and operational safety. The platform handles end-to-end payment processing, transaction lifecycle management, and merchant integrations with multiple payment providers.
Platform-level tooling to support containerized deployments, traffic control, and gradual rollouts across large microservice ecosystems. Designed to manage ~1,000 microservices with safe deployment workflows, traffic isolation, and automated scaling capabilities.
Integrated Apple Pay, Google Pay, and third-party acquirers (Worldpay, Payvision) with attention to iframe isolation, tokenization, and compliance boundaries. Implemented secure payment flows with strong emphasis on correctness, idempotency, and risk control mechanisms.