Android Payment SDK

FrontendMaintenance

Drop-in payment SDK for Android apps

Reusable payment SDK that merchant Android apps embed to take payments — checkout screens, payment flows, and result handling exposed behind a small integration surface.

• Built the mobile checkout screens and payment flows
• Shaped the SDK's public API for integrating apps
• Maintained releases and fixed issues reported in production

• Android
• Kotlin
• REST API

HubPortal

BackendFrontendMaintenance

Web portal for managing hub operations

Full-stack web portal covering day-to-day operations — account and transaction management, reporting, and the admin tooling the team works in.

• Owned backend API features and database modeling
• Built the portal's core frontend flows and dashboards
• Ongoing maintenance and production hotfixes

• Python
• .NET
• C#
• SQL Server
• REST API

GoodVibes POS

BackendFrontendMaintenance

Point-of-sale platform for merchants

Point-of-sale product for merchants — sales and order handling, payment capture, and the back-office screens for managing catalogue and reporting.

• Built backend services and data models behind sales and orders
• Developed the POS frontend and back-office screens
• Supported live merchants with fixes and improvements

• Next.js
• TypeScript
• .NET
• C#
• SQL Server
• REST API

Bank Payment

FrontendMaintenance

Mobile bank payment experience

Mobile payment experience connecting customers to bank payment rails — payment flows, confirmation and receipt screens, and transaction history.

• Built the mobile payment and confirmation screens
• Integrated bank payment APIs into the client
• Fixed production issues against live payment data

• Flutter
• Dart 3
• REST API