I work for one of the biggest e-commerce sites in Sweden, in the fashion industry. We are a group of 8 engineers using Haskell exclusively working on payments

I work for one of the biggest e-commerce sites in Sweden, in the fashion industry. We are a group of 8 engineers using Haskell exclusively working on payments and checkout related solutions. The experience has been amazing so far. We are able to ship with great velocity considering the size of the team. We have also been able to refactor things easily when requirements change. Haskell has helped in keeping the code in good shape even after the many direction changes.