Banking Without Borders: How Sempo Is Building on Miden

An Egyptian freelancer completes a project for a client in Dubai. Then they wait. Maybe three days, maybe seven. When the money arrives, somewhere between 8% and 12% has been absorbed by the system including intermediary fees, FX spreads, the accumulated cost of moving money across borders in a region that runs on cross-border work. Around 80% of MENA workers are paid across borders. The infrastructure serving them hasn't kept up.

Marvin Mujko, COO and co-founder of Sempo, has a sharp description of the problem: MENA functions like one economy, but its banking system treats it like 20 disconnected ones.

Sempo’s answer is a single account that works across the region: receive payments, hold stable dollar balances, send money instantly, convert to local currency when needed. The pitch is straightforward. The engineering underneath it is not.

Why blockchain, and why it had to be the right one

The 8-12% fee problem is, at its core, an infrastructure problem. Every cross-border transfer in the traditional system passes through a chain of correspondent banks, each taking a cut. Stablecoins remove that chain. Settlement happens onchain, near-instantly, at a fraction of the cost. That's the basic case for building a remittance product on blockchain rails rather than legacy banking infrastructure.

But that's where most chains create a different problem. Public blockchains are transparent by design. That means every transaction, every balance, visible to anyone. For a DeFi protocol, that's acceptable. For a neobank serving workers in Egypt, it isn't. Nobody wants their salary, savings, or payment history on a public ledger.

"We're building for people who've never touched crypto and never want to," says Mujko in an interview. "That means the infrastructure has to be invisible. Miden lets us keep everything – balances, transaction histories, payment flows – completely private while still running on programmable blockchain rails. That's what makes the product possible."

This is what Miden's programmable privacy unlocks: the cost and speed advantages of stablecoin infrastructure, without the transparency that makes public blockchains unworkable for financial products. Privacy and regulatory compliance aren't competing requirements here; they're the same requirement.

Built for users who don't know what a wallet is

The product Sempo has built reflects that logic from the ground up. KYC onboarding, non-custodial wallets auto-provisioned in the background, no blockchain terminology surfaced to users. The interface looks like a modern neobank because that's what it is: the programmable blockchain rails are entirely underneath.

For compliance, the team uses Valify for KYC in Egypt and Turnkey for wallet protection, both selected on direct recommendation from Egypt's Financial Regulatory Authority. Advisor Ahmed Khalifa, Executive Director of the FRA's Regulatory Sandbox, has been central to navigating the regulatory path. Sempo is on track to be the first regulated crypto bank in Egypt.

The target market is 500 million young, digitally native people across MENA who are underserved by modern banking, and 100 million freelancers participating in a growing cross-border remote work economy. The $150 billion annual remittance market flowing through the region is the immediate opportunity.

Early traction

The company has secured membership in the MENA Fintech Association and been accepted into the Pioneer Program, which includes non-dilutive grants alongside technical and go-to-market support. Four businesses with annual volumes exceeding nine figures are awaiting onboarding. An 800-person consumer waitlist was built without any marketing spend.

The platform launch is timed to coincide with Miden's mainnet. The longer ambition is to become the default financial platform across MENA: payroll infrastructure, embedded financial rails inside regional apps, treasury tools for businesses operating across borders. The foundation for all of it is privacy that works at scale.