Fintech

eAlliance

Cross-Border Crypto E-Wallet

Built a fintech e-wallet enabling cross-border crypto transfers for the underbanked in West Africa. Local actors can cash out and deposit in fiat currencies across the region.

Fintech
5 Key Outcomes
Problem

The Challenge

eAlliance needed a robust, secure fintech platform to enable cross-border crypto transfers for underbanked populations in West Africa. The challenge was building a system that could handle fiat currency cash-in/cash-out operations across multiple countries while maintaining regulatory compliance and ensuring transaction security for users who might be new to digital financial services.

The platform needed to work with local agents who facilitate cash operations, support multiple currencies, and provide a seamless experience despite varying network conditions across the region.

Solution

The Approach

1

Designed a multi-tenant architecture supporting agents across different countries with localized currency handling

2

Implemented secure wallet infrastructure with multi-signature transactions and fraud detection

3

Built an agent management system with KYC/AML compliance workflows

4

Created a mobile-first experience optimized for low-bandwidth conditions

5

Integrated with local payment rails and crypto exchanges

Technology

The Stack

Backend

Node.js PostgreSQL Redis Bull Queue

Frontend

React Native React.js Admin

Infrastructure

AWS Docker Kubernetes

Security

HSM Integration 2FA Encryption at rest
Results

The Outcomes

Launched in 3 West African countries within 6 months
Processing thousands of transactions monthly
Agent network grew 300% in first year
Zero security incidents since launch
< 2 second average transaction time
Lesson Learned

Key Insight

" The biggest challenge wasn't technical — it was understanding the real-world workflows of cash agents in markets where smartphone penetration and internet connectivity vary dramatically. We spent significant time in the field understanding how agents actually work before writing a single line of code. This user research made the difference between a platform that looked good in demos and one that actually works in Dakar, Lagos, and Abidjan. "

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