Twenty metres off: getting the address pin right
Two small bugs in our map picker could put a delivery address down the street, or at a place the customer never chose. Here is how we found them and the rule we now follow for every map.
Engineering
How we build the systems that move food, riders and payments across town.
The map bill that was paying for answers we threw away
A single screen in our rider app was asking the maps API for hundreds of travel times and reading only a few. Here is how we found it, fixed it, and what we changed so it cannot happen again.
Ratings that mean something to you
A restaurant's average rating tells you what everyone thinks. We built a second number that predicts what you will think, and learned when to stay quiet instead.