Problem Statement: Small businesses integrating mobile money APIs face undocumented edge cases, webhook failures, and no unified retry logic.
Project Overview
This page features a detailed engineering case study for Mobile Money Gateway, a backend application developed by Fredrick Nyang'au. Fredrick is a Junior Backend Engineer based in Nairobi, Kenya, specializing in FastAPI, Python, and PostgreSQL systems for Fintech and Agritech industries.
Engineering Decisions & Highlights
High performance database schema design and constraints.
Optimized APIs built with FastAPI, verified by automated testing.
Robust containerized deployment configurations with Docker.