Core Payment, Remittance, and Settlement Systems

Several Korean payment gateway (PG) companies asked us to build the core systems behind their services. We have also built payment, settlement, and operations features for more than 20 online stores, including health supplement retailers. Client names are confidential.

Payment systems leave no room for error: every transaction has to be recorded, reconciled, and traceable. The work also had to connect card terminals, identity verification and anti-money-laundering checks, financial data providers, and banks, each with its own interface and rules.

Depending on each project, we built credit card payment systems, an integrated platform for card payments, mobile payments, and virtual accounts, and an overseas remittance app. We also built a white-label mobile payment app that works with card terminals and a kiosk with built-in payment, and integrated KYC and AML systems. For online stores, we built one-time and subscription payments, settlement, refunds, and transaction monitoring, connected to domestic and international PGs, Shopify, and shipping services.