screenshot — settlement dashboard
FINTECH · 2025
Mobile money reconciliation engine
Cut a two-day manual settlement process to a 15-minute automated run across three telco rails.
Accra, Ghana — software consultancy
Software that still works at month twelve.
We build the systems businesses run on — web platforms, custom internal software, mobile apps and payment integrations. Written by an engineer with production experience in fintech and distributed systems, not assembled from a template.
01 / BACKEND
.NET, NestJS, PostgreSQL. Event-driven services, queues, idempotent workers.
02 / PAYMENTS
Mobile money and card rails, reconciliation, ledger correctness, retries.
03 / MOBILE & WEB
Flutter apps and fast, accessible web front-ends built for low bandwidth.
04 / INTEGRATION
APIs between the systems you already pay for. Documented and monitored.
Services
Full scope and deliverables →S—01
Web design & development
Sites and web applications built to load fast on a mid-range Android over patchy data, and to be found in search.
S—02
Custom software
Line-of-business systems: inventory, case files, billing, approvals, scheduling, reporting. Built around how your team actually works.
S—03
Mobile applications
Flutter apps for Android and iOS from a single codebase, designed for intermittent connectivity and low-end devices.
S—04
API & systems integration
Connecting payments, SMS, accounting, CRM and legacy databases so data moves once, correctly, without anyone re-typing it.
S—05
SEO & digital presence
Technical search work for businesses that need to be found in Ghana and, where relevant, abroad. No monthly retainer required.
S—06
Technical consultancy
An engineer's read on a decision before you spend money: a vendor quote, an existing codebase, a hiring plan, an architecture.
Selected work
All case studies →screenshot — case file view
LEGAL · 2025
Case management for an Accra law firm
Matter tracking, deadlines and document storage for 11 fee earners, replacing shared drives.
screenshot — booking flow
HEALTHCARE · 2024
Clinic booking and records portal
Patients book by phone number; no-shows fell by a third after SMS reminders went live.
Why clients keep the number
Plinth is a registered Ghanaian consultancy with one principal engineer. You talk to the person writing the code — there is no account manager relaying requirements and no junior team learning on your budget.
Work is delivered in two-week increments against a written scope. You get the source code, the deployment, and documentation good enough for another engineer to take over.
ENTITYRegistered in Ghana · sole proprietorship
SINCE8 years building production systems, 3 in payments
STACK.NET · NestJS · Flutter · PostgreSQL · Redis · Docker
TERMSFixed scope, milestone invoicing, code handed over
REACHAccra-based; remote engagements in EU and US time zones
Tell me what is broken, or what you want built.
A 30-minute call, then a written scope with a fixed price and timeline. No charge for either.