Closed-Loop Fintech Platform Build

We are building V-Pay, a closed-loop digital payment and settlement platform designed for constrained and emerging markets where traditional card networks and acquiring banks are unreliable.

The initial deployment supports:
• Tourism spending
• Private merchants
• Diaspora-funded wallets
• Local settlement through approved partners
• Offshore treasury and liquidity management

This is real financial infrastructure, not a consumer app clone.

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The Problem We Are Solving

In certain markets:
• International cards frequently fail
• Local POS/acquiring is unreliable
• Cash dominates due to broken payment rails
• Merchants cannot reliably accept foreign spend
• Governments require visibility, controls, and reversibility

V-Pay solves this by:
• Holding foreign funds offshore
• Running an internal authorization + ledger system
• Enabling QR-based local payments
• Settling merchants locally without foreign wires
• Providing full auditability and compliance controls

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What Needs to Be Built

This project is for a prototype / pilot system (simulated funds in Phase 1).

Core components to build:
• Double-entry ledger system (source of truth)
• Authorization engine (approve/decline, limits, controls)
• Consumer wallet app (Android-first)
• Merchant acceptance app (QR-based, no POS hardware)
• Settlement orchestration logic (local settlement simulation)
• Admin / compliance dashboard
• Full transaction logging, reporting, and audit trails

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What Will Be Integrated (Not Built From Scratch)
• Card issuing / tokenization platform (Marqeta-type issuer later)
• KYC / AML tooling
• Messaging (SMS / push)
• Cloud infrastructure (AWS / GCP)

No crypto. No blockchain.

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Key Functional Requirements
• QR-based payments with instant authorization
• No reliance on local card acquiring
• Strong ledger consistency and reconciliation
• Tiered limits for users and merchants
• Ability to freeze, reverse, and audit transactions
• Designed to withstand bank and regulator review

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Technology Stack (Flexible, Must Be Justified)
• Backend: Node.js or Python
• Database: PostgreSQL or equivalent relational DB
• Mobile apps: React Native or Flutter
• APIs: REST (GraphQL acceptable if justified)
• Hosting: AWS / GCP / Azure

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Required Experience
• Payments, fintech, or wallet systems
• Ledger or transaction system design
• Secure API development
• Idempotency, reconciliation, and consistency handling
• Building systems that move money (even simulated)

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Strongly Preferred
• Card issuing or prepaid systems experience
• Regulated system exposure (banking, payments)
• Admin dashboards for financial operations
• Emerging market or low-infrastructure experience

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What This Is NOT
• Not a crypto project
• Not a simple e-wallet clone
• Not a UI-only build
• Not a speculative idea

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Project Scope & Timeline
• Prototype / pilot build
• Simulated funds (no real money in Phase 1)
• Target timeline: 8–10 weeks
• Milestone-based payments
• Potential long-term engagement after pilot

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How to Apply (Important)

Please include:
• Brief description of similar systems you’ve built
• How you would design the ledger
• How you would handle authorization and limits
• Relevant GitHub or architecture examples

Generic or low-effort proposals will be ignored.

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Why This Project Is Different
• Real stakeholders (banks, ministries, merchants)
• Architecture and correctness matter more than UI polish
• Opportunity to build core financial infrastructure
• High-visibility system with long-term potential