Arriveco

Context

Arriveco rents out modified shipping containers: offices, bathrooms, storage. Staff need to know where every unit is, who is renting it, when it moves between sites and what to bill each month. I took over an existing system in 2026 and have been rebuilding it in place while the company keeps using it.

Constraints

• The accounting system stays the official record. The app may read from it but never write to it.
• The accounting API allows a fixed total number of calls under the contract, so every request has to be rationed and cached.
• It runs on shared hosting, and the business can’t stop while changes go in.

Key decisions

• Each container has one record with a timeline of everything that has happened to it: rentals, transfers, repairs, costs.
• The interface was redesigned in ten steps, each published separately: one visual language, one status system, phone layouts, Chilean dates and amounts.
• Releases go through a rehearsal against a copy of production before they are published.
• More than 600 automated tests cover the application.
• A tutorial library inside the app teaches each task with a short video.

Where it stands

The redesigned system went live in October 2026 and is used daily. Integration work with the accounting system is next.