Sascha Bittner

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open banking payments fintech financial technology instant payments recurring payments instant payouts ecommerce payments crypto payments real-time transactions payment platform bank transfers pay by bank transaction costs payment security api integration bank-grade security digital wallets chargeback prevention conversion rates financial technology direct bank payments automated refunds payment processing multi-currency support instant bank deposits seamless checkout payment management customer retention user experience transaction optimization open banking api financial compliance data security payment infrastructure fraud mitigation instant fund availability subscription payments merchant services cost-effective payments customer onboarding payment customizations payment analytics crypto on-ramps crypto off-ramps instant settlements user adoption responsive design modular architecture payment solutions global payments merchant onboarding payment gateways financial services finance technology information technology & services ux computer & network security