Overview
Overview
SGT Digital Wallet is a mobile-first consumer wallet with peer-to-peer transfers, bill payments, QR-based merchant pay, tokenised card storage, top-ups and cashback. It is delivered as a turnkey product — iOS and Android apps, a hardened wallet core, and integrations to local banking, card-scheme and Mobile Financial Services (MFS) rails — so a bank, telco or fintech can launch under its own brand in weeks.
Under the hood: a double-entry ledger with idempotent transactions, a PCI-DSS Level-1 card vault for tokenisation, a fraud-scoring engine that learns from per-user device and behaviour signals, KYC tiers (basic, NID, biometric), and dual-direction settlement to partner banks. Every event is auditable. The product is built for high-throughput micro-payments — 1,400+ TPS sustained — at low p99 latency.
- P2P · QR · Bills · Top-ups · Cards — five core flows out of the box
- Bank-grade ledger — double-entry, idempotent, immutable journal
- Fraud scoring — device-bind, behaviour, velocity, geo-anomaly
- KYC tiers — basic (phone), tier-1 (NID OCR), tier-2 (biometric + AML screen)
How It Works
- Wallet App — iOS / Android consumer app showing balance, card carousel, QR scanner, recent transactions, cashback bar, and quick-actions (Send / Pay / Bills / Top-up). Biometric unlock and device-bind enforced.
- Wallet Core — the double-entry ledger writes every move as paired debit/credit entries. Fraud scoring runs per transaction (12/100 typical; anything > 60 triggers step-up or block). Card vault is FIPS-validated HSM-backed.
- Partner Rails — pre-built connectors to local commercial banks (NPSB / RTGS), card schemes (Visa / Mastercard), MFS networks (bKash / Nagad / Rocket-style), and bill aggregators (utility, telco top-up, school fees).
- Users & Merchants — consumer push, SMS OTP, e-mail statement; merchant POS with QR generation, instant settlement, daily payout report, and refund-with-reason workflow.
Features
- Peer-to-peer — by phone number, by wallet handle, by QR
- QR pay — dynamic (merchant-presented amount) and static (consumer enters amount) variants
- Bill payments — utility, telco recharge, internet, school fee, government, custom biller plug-ins
- Card vault — add Visa / Mastercard / Amex; cards tokenised, never stored as PAN
- Cashback engine — fixed, percentage, threshold, partner-funded; A/B test cohorts
- Multi-currency — single wallet supports multiple ledger currencies with FX-time-of-spend
- White-label — colour theme, logo, brand name, push-notification copy, app-store listing
- Admin / ops console — KYC review, dispute resolution, manual hold / release, audit trail export
Use Cases
- Bank-issued wallet — second app for a retail bank that wants a true digital-native experience
- Telco-issued wallet — MNO launching an MFS-style wallet for postpaid + prepaid subscribers
- Closed-loop merchant wallet — supermarket, fuel-retail, ride-hail in-app wallet with cashback engine
- Payroll wallet — employer disbursement to unbanked / underbanked workforce
- Government disbursement — direct-benefit-transfer wallet with KYC tied to national ID
- Cross-border remittance — origination wallet, recipient pickup in partner wallet or cash-out
Specifications
- Apps: native iOS (Swift) and Android (Kotlin); React-Native variant available for mid-market launches
- Backend: Java / Spring core ledger, Go fraud engine, PostgreSQL primary store, Kafka event bus
- Throughput: 1,400 TPS sustained per ledger shard, horizontal sharding by user-ID
- Latency: p50 14 ms, p99 38 ms for a typical wallet-to-wallet transfer
- Security: PCI-DSS Level 1, FIPS 140-2 HSM card vault, AES-256 at rest, TLS 1.3 in transit
- Compliance: KYC tier model, AML watchlist screening, 3DS 2.x, regional regulator reporting templates
- Deployment: private cloud (AWS / Azure / GCP), on-prem with HSM, or our managed SaaS
- APIs: REST + gRPC for partners, WebSocket for live txn feed, OpenAPI 3.0 spec, SDKs in JS / Java / Python
Product information
| Product name | Digital Wallet |
|---|---|
| Category | FinTech Products |
| Type | Mobile Application |
| Procurement | Contact / Negotiable |
Customisation options
- Brand & theme — your name, colour palette, illustrations, app-store listing and push copy
- Flows enabled — pick from P2P, QR pay, bills, top-up, cards, merchant payouts, cross-border remit
- KYC depth — phone-only (sandbox), NID OCR + selfie, full biometric + AML screen, or regulator-bespoke
- Partner rails — your bank only, multi-bank, MFS networks, card schemes, or full omni-rail
- Cashback / loyalty — none, simple cashback, points-and-tiers, partner-funded offers, or A/B engine
- Deployment — SGT managed SaaS, your AWS / Azure / GCP, on-prem with HSM, or hybrid
- Channels — mobile-only, mobile + web, mobile + USSD fallback, or full omnichannel
- Compliance pack — PCI-DSS L1, regional central-bank reporting templates, AML screening vendor of your choice
Ordering & lead time
Standard lead time depends on current stock. For volume orders, please contact our team for a structured quote including BOQ, freight, installation and warranty terms.
Support
Engineering support, installation guidance and warranty claims are handled by our customer success team. Reach us at support@sgtsystems.com or via the channels listed on our Contact page.