Web & admin portals
React, TypeScript, and Tailwind — the control room institutions use to manage forms, submissions, and signing jobs across every tenant they run.
ReactTypeScriptTailwind
Software Engineer · Ghana
I build the infrastructure
behind trust.
Signed, Steven Yao Matetcho.
Founding engineer building a multi-tenant digital signature platform for banks and hospitals — the cloud API, the admin console, and the Android and Windows apps people actually sign on, all built end to end.
About
Software that has to be right the first time.
I'm Steven — a computer engineering graduate working in the software department at UGMC, and an active freelance engineer on the side. My main project is the founding engineering behind a Wacom-based digital signing platform, built for institutions that can't afford to get it wrong. I built the system's full stack myself: the multi-tenant cloud API, the admin web portal, and native launchers for both Windows and Android — before there was ever a formal team agreement in place.
I like the kind of engineering where "close enough" isn't good enough — signed documents, synced jobs, systems that have to hold up under an audit, not just a demo.
Currently
- RoleFounding Engineer
- FocusSigning infrastructure
- Based inGhana
- StatusUGMC & freelance
What I build
One platform, four surfaces.
Cloud & backend
A .NET API behind the whole platform, built to run on either PostgreSQL or SQL Server — so it fits whatever infrastructure a bank or hospital IT team already has.
C# / .NETPostgreSQLSQL Server
Mobile
A Kotlin and Jetpack Compose Android app that captures a signature in the field and syncs the job back to the cloud in real time.
KotlinJetpack Compose
Desktop
A Windows launcher that keeps the platform usable on the machines already sitting on hospital and bank desks — a modernized take on the legacy app.
C# WinFormsWindows
Featured work
A signing platform built for institutions that can't afford to get it wrong.
A multi-tenant digital signature platform for banks and hospitals, with four deployment tiers unified by a single configuration model — so the same core platform scales from a small desktop install up to a full enterprise rollout. I designed and built the architecture, the cloud sync layer, the audit trail, and every client that talks to it.
- TenantsIsolated by design, unlimited
- PlatformsWeb · Android · Windows
- Deployment tiersDesktop → Enterprise Plus
- SyncCloud-synced signing jobs
ReactTypeScriptC# / .NET
KotlinPostgreSQLSQL Server
Get in touch
Let's build something worth signing for.
Open to hearing about interesting engineering problems, founding-team conversations, or just a good technical chat.