Teninlanimi Taiwo logoSelected Work · TrocoVisit troco.ng
Case Study · 02

Troco — a marketplace built on trust, not hope.

A secure, escrow-based e-commerce marketplace where money is held until both sides are satisfied, with real-time order tracking, dispute resolution, in-app chat, and three-party broker flows. Live on Google Play with 1,000+ Android users in the first three months.

Android iOS Admin web · internal Marketing site
// troco-app.pngTroco app
Role
Founding & Senior Engineer
Timeline
Jun 2024 — Present
Company
Troco Technologies · Lagos
Status
Live on Google Play
01 — Overview

The problem was trust. Money moves before goods do.

Peer-to-peer commerce in Nigeria runs on faith: buyers pay first and hope, or sellers ship first and hope. Troco removes the hope. It's an e-commerce marketplace where funds are held in escrow and only released when both sides are satisfied, with a full audit trail in between.

I joined as the founding engineer and built the product from scratch, owning the technical foundation, the architecture, and the team that grew around it. I later spearheaded the strategic pivot that repositioned Troco from a single-purpose escrow tool into a full marketplace app, backed by an internal admin web platform for order verification, driver dispatch, and dispute handling.

The hard part wasn't the happy path; it was the disputes, the partial refunds, the three-party broker flows, and keeping all of it real-time and legible to non-technical users handling real money.

02 — Impact
1K+
Android users within three months of launch
3-party
Buyer · seller · broker escrow flows shipped
< 48h
Median dispute resolution timesample — confirm
99.9%
Transaction settlement reliabilitysample — confirm
03 — My role & responsibility

What I owned, end to end.

01
Technical foundationBuilt the product from zero and owned the architecture, data model, and escrow state machine.
02
The marketplace pivotLed the strategic repositioning from escrow tool to full marketplace, re-architecting around it.
03
Team leadershipDirected a team of engineers and ran the product across its full lifecycle.
04
Trust & securityDesigned dispute resolution, real-time tracking, and secure payment settlement.
04 — Frameworks & stack

The toolkit behind Troco.

Mobile

FlutterDartRiverpodBlocReal-time updates

Platform & payments

Escrow enginePayment integrationAdmin web platformDispute workflowsPlay Store delivery
05 — Client satisfaction
sample: swap for real quote

Teni built Troco from nothing and had a thousand people using it in three months. Rare to find someone who ships that fast and that carefully.

R
R. A.Co-founder · Troco
06 — Screens

Inside the product.

Mobile app
Troco — wallet & home
Wallet & home
Troco — marketplace
Marketplace
Troco — order tracking
Escrow order track
Troco — in-app chat
In-app chat
Admin web platform — not shownThe internal admin site (order verification, driver dispatch, dispute resolution) is confidential and can't be shared publicly. Available to walk through in conversation.
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