Enterprise eCommerce App with Custom Payment IntegrationEnterprise eCommerce App with Custom Payment Integration
Full digital order journey — from product selection to checkout and receipt
Reliable and secure payment flow with support for all common payment types
Modular architecture that improved maintainability and allowed future scaling
Enterprise-ready app with a smooth, professional user experience at live events
About the Project
The client required a B2B iPad application for products digital ordering and payment processing.
Designed for enterprise distribution, the app needed to support the entire order lifecycle – from browsing product catalogs and managing carts to capturing payments and generating receipts.
A key requirement was an integration with a physical external card reader for secure transactions that meets strict security and compliance requirements.
Description
Business Challenge
Application should be capable of securely handling complex payment scenarios in real time. The key technical and product challenges included:
- Integration with a third-party payment terminal and secure transaction processing
- Support for multiple payment methods, including credit cards, checks, split payments, manual card entry and card scanning
- Capturing digital signatures and generating receipts instantly after each transaction
Contributions
We developed a modular iPad application covering the entire order and payment flow,with a strong focus on custom hardware integration and transaction security:
Implemented a custom communication protocol
With the external card reader, based on vendor documentation
Handled TLV data parsing and implemented ARQC
Handled TLV (Tag-Length-Value) data parsing and implemented ARQC (Authorization Request Cryptogram) for secure, EMV-compliant payments
Enabled a full range of supported payment methods
Like magstripe, NFC, contactless with fallback options like manual card entry and camera-based card scanning
Built the complete ordering flow
Product browsing, cart, customer info, payment, digital signature, and reporting
Added support for split payments, tokenization, and real-time payment validation
To meet PCI compliance standards
Key Expertise
This project reflects our strength in building secure, hardware-integrated mobile apps for real-world commerce:
- Deep experience working with low-level payment protocols and EMV-compliant card readers
- Proven ability to implement secure flows using TLV parsing, ARQC, and PCI-compliant tokenization
- Complete ownership of the entire flow, from hardware integration and payment processing to building an enterprise-ready user experience
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