Fluidcoins

Fluidcoins was building crypto payment infrastructure for African businesses — a way for merchants to accept stablecoin payments, manage payouts, run a storefront, and earn yield on idle balances, all without touching the underlying blockchain. Lanre Adelowo (Founder/CEO/CTO) pitched me the initial concept over a call in 2019. I had not written a single line of React Native before that call. Ten days later, I'd shipped the UI for over 40 screens.

As Fluidcoins evolved from consumer app to B2B infrastructure, I built the merchant dashboard, payment widget, and JavaScript SDK — the foundation that onboarded over 1,000 businesses and processed more than $20M in transaction volume. The merchant dashboard alone ran to 597 commits: payment links, customer management with blacklist/whitelist controls, transaction history across deposits, swaps, and wallet transfers, payouts with fee calculation, a shop module for digital products, an earn/savings wallet with yield tracking, and developer tools with webhook management and IP whitelisting.

Flip by Fluidcoins was the consumer product — a cross-platform React Native app for crypto savings and international payments using stablecoins. I led the mobile build end to end, and given how small the team was, I also doubled as customer support and compliance officer daily — reviewing KYC applications and onboarding users directly through the MetaMap identity verification flow. Flip processed $1.5M in transaction volume and hit 25,000 users in nine weeks. Lanre later wrote in my Tech Nation visa reference: 'Seun played a key role in the unexpected tremendous growth of Flip by Fluidcoins.'

I also built the Fluidcoins marketing website and the Flip landing site with its SEO-optimised blog. Fluidcoins shut down in early 2023, unable to raise a new funding round in a market that had turned cold on crypto. The product worked. The timing didn't.