PrimeQA Solutions is now a RedLine13 Partner. PrimeQA Solutions is an independent software testing agency located in India, serving global clients. Their testing services include load performance, automation testing, functional, mobile app, security, and next-gen testing.
PrimeQA Solutions has an article Scaling 1 millions users Redline13 which details the problems and challenges they faced and their solution.
Read more about PrimeQA Solutions here.