I've been wondering on how to do translation and what are the requirements to be accepted in this job? Also Can you advice on what bounty campaign I can apply for the beginners please send some help.
There are already many translators in this forum but it would still depend what language you are translating. If there are only a few translators in your language then there is a chance a bounty manager would accept you but if there are already many translators then it would be tough for you because others already have portfolio and you are just starting so the competition would be tough. I can see some who are offering their service for free the first time they do the job so that they would have portfolio to show to their next translation job.
You can use this link to see the bounties that has no translators yet.
https://bitcointalk.org/index.php?board=238.0;sort=first_post;desc