Payment SystemsFinancial Infrastructure
Extreme-volume payment platform migration
Transformation of the online payment gateway and merchant management system of a country’s leading digital wallet operator. The existing merchant base, operations and clearing processes were migrated in staged waves without disruption — one of the largest infrastructure migrations in financial technology.
- 1/4Wave 1: low-risk merchants move to the new platform; 10% of live traffic.
- 2/4After every wave the two platforms reconcile: the next wave does not start until the delta is zero.
- 3/4Waves 2 and 3: the high-volume segments, 70% of traffic. The way back stays open at every point.
- 4/4Wave 4: the last segment. The legacy gateway is switched off — without a single outage.
- 70M+ / day
- Daily transaction capacity processed without interruption
- Zero downtime
- Staged migration with live traffic and reconciliation uninterrupted
- Full reconciliation
- Cross-system consistency across massive financial log data
Problem
- Extreme transaction volume
- The need for a central gateway that processes 70M+ transactions a day at microsecond-level latency.
- Fragmented payment methods
- Wallet, card, bank account, QR and BNPL could not be orchestrated under one roof.
- Lossless migration as a must
- Carrying over the payouts, commission and authorization profiles of thousands of active merchants in full.
Solution
- Multi-channel gateway
- Wallet, bank account, QR, payment link and BNPL through a single central gateway.
- Automated onboarding
- Digital merchant registration, document management, role-based approval; campaign and fraud management modules.
- E-commerce ecosystem
- Plugins for popular e-commerce platforms, a developer portal, sandbox; real-time dashboards and central logging.
Technical notes
- Multi-channel gateway with a microsecond-level latency target
- Staged-wave migration and end-of-wave reconciliation
- Idempotent transaction acceptance
- Central logging and real-time dashboards
- E-commerce plugins and developer portal
Related services
What comes next
The system runs stably under enterprise maintenance and SLA assurance; the modular architecture is ready to support new payment models and global integrations.
Let’s assess your project.
If you are planning a transformation of high scale and architectural demand, we draw up the risk map together in the first meeting.