I have been working in Service based company since last 4 years.\nI want to do something new as it is not productive being in Service bases company.\n\nI already have average knowledge of DS and Algoso just let me know if I brush up my skill , will I get Interview call from BIG companies like Amazon or others.\n\nIt is really important for me.\nPlease help.

I have been working in Service based company since last 4 years.\nI want to do something new as it is not productive being in Service bases company.\n\nI alread