A complete investor-discovery SaaS built solo: Express/PostgreSQL/Stripe API with tier-based paywall, React storefront iterated across 286 commits, a six-step waitlist funnel, and a white-labeled support desk - wrapped around a 25,000+ investor dataset.
A TypeScript/Express/Mongoose data backbone for a student super-app: loans, jobs, service marketplaces, short video, communities, messaging, and transport booking - ~35 domain models mapping the entire economic life of a Nigerian student.
A NestJS/MongoDB financial-system backend - users, accounts, transactions, role-based access - with unit and e2e tests, Sentry/Loggly observability, and a TypeDoc API reference deployed as its own documentation site.
A pandas/scikit-learn CLI that turns raw Kuda neobank statements into spending analytics: category and counterparty breakdowns, 3-sigma anomaly detection, and a 30-day cash-flow forecast - built for the messy reality of Nigerian bank exports.