Tencent

Some basic knowledge about C++, what's the difference between pointers: smart pointer and weak pointer how to implement some standard data structures. What is polymorphism, what is publisher-subscriber pattern, what is factory pattern..

Phone interview starting with introducing yourself followed by two code questions. The first coding question is very standard coding question and the second one is a little more related to Tencent's certain functionality

HR reachout - 1 Phone screening - Multiple onsites - Hiring decision WeChat normally has a slightly different hiring process which may correspond to a higher bar, other teams in Tencent shares the same procedure