At Punjab Sahulat Bazaars Authority, I built a staff attendance platform from scratch as the sole developer. Its Express and PostgreSQL server, React admin dashboard, and Flutter kiosk app work offline and sync attendance without duplicates.
I also developed a travel and expense claims system with GPS journey recording, automatic allowance calculations, approval workflows, and bank payment exports. For the public delivery platform, I fixed uncached queries behind an outage and moved geocoding to a self-hosted Nominatim server.
Through my freelance work, I built a NestJS fiscalisation service and React dashboard for Tengai POS, connecting its Flutter point-of-sale app to the Zimbabwe Revenue Authority's REST API. The service includes certificate enrolment, mutual TLS, signed receipts, fiscal-day reporting, and a retrying submission queue; it’s running on pilot devices pending authority approval.
I also maintain the Flutter till app, improving iOS offline checkout from about 30 seconds to about two seconds and reducing the Android bundle by 14%. My public code includes DocChat, a document Q&A project with cited answers, and Flowscope, a static analysis tool for n8n workflow exports.
