Experience & projects

Founded and built Ghana's creator economy platform — 360+ products across 8 product types, 1,200+ paying customers, 200 active creators on a single Next.js + MongoDB stack. Built tier-aware Paystack subscriptions, custom JWT + Firebase auth with cross-subdomain isolation, and cut media infrastructure cost ~70% by migrating to Cloudflare Stream + R2.

Designed multi-tenant data isolation across a 10+ module NestJS API on AWS Lambda, pairing request-scoped AccountContext with CASL-based RBAC (40 subject×action permissions). Owned tenancy overlap validation for a UK property-billing platform and resolved a silent autocomplete defect across a 154,694-row, 245-country dataset.

Led migration from monolithic UI to modular React/TypeScript architecture — 40% faster page loads, 50% faster initial load times on data-intensive applications. Built reusable component libraries for financial dashboards, integrated third-party APIs driving a 30% lift in user satisfaction, and mentored junior engineers on TypeScript and React patterns.

Built mobile-first React/TypeScript components from Figma designs for fintech and SaaS platforms serving 1,000+ daily users. Delivered SPA dashboards with complex data visualizations and designed internal admin panels that improved admin productivity by 20%.

Built React web apps reducing manual processes by 75% through automated UI workflows. Contributed to a community e-commerce PWA that reached 200 users in its first month.