Postal Delivery Calculator from Saint Petersburg

This project did not start as a standalone public form. It started as a calculation service for an online store. At that time, the Russian Post website did not have an efficient calculator that could be conveniently used from a back office and connected to the order workflow.

The calculation rules were described in large Russian Post documents. They contained many conditions and exceptions: tariffs, regions, restrictions, and delivery specifics for hard-to-reach locations. One separate complication was seasonality: for some northern regions, delivery depended on the time of year, because during muddy road seasons some routes could become unavailable.

In practice, this was a small microservice for calculating delivery from Saint Petersburg. It had an API connected to the online store, so the system could automatically receive delivery cost estimates and warnings about hard-to-reach regions without manually checking the documents.

The web form appeared alongside that work. Since the API already existed, it could be exposed through a simple interface: the user entered shipment parameters and received the same calculation that was used inside the store.

For the bureau, this remains a useful early example of applied automation: complex rules from documents were turned into a working API and a simple web interface, while delivery calculation became faster and more reliable.