Shopify does not disclose their architecture or server details, but Shopify is built with Ruby on Rails. Each customer’s store is housed in virtual pods with rails logic. They use MySQL for databases, memcached for memory caching, and Redis for background tasks and queues. Nginx, Lua, and OpenResty powers Shopify’s load balancing. Nexcess, by contrast, is 100% transparent about our application stack
and server architecture. The latest technology services are built into your hosting plan for maximum speed and scale.