Billion Tech Nest
LiveIn one line
A client-grade telecom data reselling platform for real-time wallet funding, QR point-of-sale delivery, and commission routing.
Telecom Reselling Mobile Money QR POS Idempotent Webhooks Live
MoMo funding • Ledger-safe reconciliation • Queue-based fulfillment • Dynamic commission routing
Case study
Problem
A client required an automated, multi-tier telecom reselling platform capable of handling real-time wallet funding,
QR point-of-sale delivery, and dynamic commission routing without manual admin intervention.
Constraints
High reliability for financial transactions, strict latency limits for external telecom fulfillment, and the critical need
to prevent double-crediting during network/API failures.
Engineering
Architected an async fulfillment queue backed by PostgreSQL (Neon). Implemented ledger-safe webhook handling with strict
idempotency checks (so confirmations could not double-post). Optimized database indexing to support high-frequency
dashboard polling while keeping compute usage low.
Impact
Processed over GHS 10,000 in transaction volume (GMV) within the first 5 weeks of production, with automated accounting
accuracy and recovery-oriented reliability for referrers, agents, and sub-agents.
Where details are confidential, the focus here is on system design and reliability patterns (not proprietary implementation).