To become a Artma express delivery rider (also known as a delivery associate), you need to register as an Artma express logistics partner. This involves filling out a registration form and submitting required documents, including a photocopy national ID. You will also need to complete a training program to become an e-commerce expert and activate your Artma express Deliverer's center account [ADCA]. Once registered, you can start receiving and fulfilling delivery orders for Artma Express Shopping App.