Developed and maintained SettlePay Wallet, a financial application bridging cryptocurrency and fiat currency transactions.
Implemented features for depositing, withdrawing, and optimizing operations on major cryptocurrency exchange accounts.
Integrated a variety of deposit methods, crypto-fiat exchange services, and global merchant top-ups into the wallet.
Designed and implemented user-friendly Diia & Kycaid verification processes for seamless user onboarding.

App Link: https://play.google.com/store/apps/details?id=com.fourbill.settlepay

Developing an online payment system for monopay.com.ua

Developed a self-service terminal application

Participated in the development of a client-banking system, including integration with ABS B2 and implementation of a gateway for interaction with the UkrCard and EasyPay processing systems.