Shipped: AJM Fleet Purchase: the B2B fleet-trading back office

AJM Fleet Purchase buys new and used cars in bulk across Europe and sells them to fleet operators in Europe, Asia, the Middle East and Africa. From 2020 to 2023, as a contractor, I built their back office from a blank repo and ran it in production.

It covers the whole trade, from the purchase of each car to the last payment. Every vehicle is followed from supplier to buyer, with its VIN, estimated and actual prices, fees and delivery dates. Proforma and final invoices are issued for several group companies in several currencies, generated as PDFs and sent from the app. Incoming and outgoing bank payments are matched to vehicles and invoices, with a balance sheet per vehicle exported to Excel. A dashboard shows deliveries due, overdue invoices and records that don't add up.

I wrote it alone, in more than 1,100 commits, all before AI coding assistants existed.