Sum up all fees charged by the banks like Chase, card schemes like Visa, Mastercard & American Express, and us PayPal, Braintree & Venmo.

Take them out of merchants' bag and disburse the net amount to them, to make everyone's happy.

Core Transaction Pricing.

Create & maintain the pricing schedule we dealt with merchants, and charge merchants based on those contracts.

｜Kotlin, Ruby, Java

｜Full stack

｜Untangle extremely complex systems across business and technology.