Mehmet Egemen Pembe

Success Stories


EmployeeZ Digital Wallet

A secure and efficient system for internal transactions, refunds, and user balances.

EmployeeZ Digital Wallet

Overview:

The EmployeeZ Digital Wallet was developed to create a seamless, in-app transaction layer that enabled users to store balance, handle refunds, and process payments within the EmployeeZ ecosystem—without needing to rely on external accounts for every interaction.


Key Features & Implementation:

  • Wallet Architecture: Designed and implemented a secure, ledger-based digital wallet system that tracked user balances, payment activity, and wallet transactions
  • Refund Handling: Enabled instant refunds for canceled gigs or user disputes, allowing funds to be re-credited to the user’s wallet in real time
  • Transaction Logging: Implemented immutable transaction records for every wallet operation, ensuring full transparency and auditability
  • Secure Checkout Integration: Integrated with the EmployeeZ secure backend checkout process, so wallet balance could be applied as part of gig payments
  • Balance Notifications: Users received real-time updates when their wallet was credited or debited, enhancing trust and engagement
  • Partial Payments Support: Wallets could be used in combination with card payments (via Stripe) to split transaction amounts
  • Wallet-Only Purchases: Enabled exclusive in-app content purchases using wallet credit

  • Security & Compliance:

  • Built with secure JWT-based access, using DynamoDB for real-time transaction state management and blacklist operations
  • Hosted on AWS multi-AZ infrastructure, ensuring uptime and fault tolerance

  • Impact:

  • Reduced reliance on external payment APIs for small or frequent transactions
  • Empowered users with a faster, frictionless refund process
  • Provided a foundation for future features like subscriptions, loyalty programs, and in-app tipping


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