I attached my cv to their mail mentioned in some internet job advertisement, After about a week they called me for an interview, it was all about c, c++ , general programming fundamentals, OOP fundamentals and Database basics, data structure, linked list, map, queue, .... and their implementation in c++, after interview they offered me a very low salary for training months(3), I refused the offer and they asked me to visit them again for salary negotiation and we agreed on the salary and started working.