Polywick Studio

POS Integration

Integrate POS terminals, payment vendors, and JavaCard systems.

Payment and POS integrations need careful boundaries, logging, and vendor-specific workflows. We help teams connect the payment layer to the application without turning the whole product into a rewrite.

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What we can help with

  • Adyen, Moneris, WorldPay, Fiserv, Clover, and Verifone integrations
  • PinPad and terminal workflow integration
  • JavaCard and custom POS-related application work
  • Desktop and backend bridges for transaction workflows
  • Logging, reconciliation support, and maintainable vendor adapters
Related services

Adjacent paths clients often need.

Embedded Software

Firmware, devices, and companion apps from one senior team.

Polywick Studio develops embedded C/C++, firmware, device integrations, serial communication, Modbus, Arduino, STM32, FreeRTOS, and desktop companion apps.

 Qt Development

Cross-platform Qt software for desktop, embedded, and serious tools.

Polywick Studio builds and modernizes Qt applications using Qt 6, QML, Widgets, C++, DevMachines, Lime Reports, and embedded Linux deployment paths.

 .NET Desktop Modernization

Upgrade WinForms and old .NET tools without throwing the product away.

Polywick Studio modernizes WinForms and WPF applications, upgrades .NET Framework projects, migrates VB.NET to C#, and moves desktop products to WPF or Avalonia.

Send the stack, the age, and what needs to change.

We will come back with the practical first step: stabilize, modernize, migrate, or maintain.

Start your project