Is it possible for a Working Holiday Visa holder finding a software engineering job in Australia?

You need a work permit for this. I know Australia is a safe place have a strong economy. Why don't you check the residency permit visa in Australia? They are also offering Golden Visa to give PR. If you are coming from outside Andorra to set up a business you will need information on a number of topics such as tax and legal requirements for Andorra residency. You can find information about starting a business and being self-employed on this website https://immigrantinvest.com/andorra.... I hope this will help.

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Hello there guys. I also need your assistance here because I would like to get more information about etias visa here. Can you help me please?

Oh, of course. I think that if you are looking for the information on this topic then you definitely need to read some stuff about this ETIAS Europe https://www.etiasvisa.eu.com/ right there as it seems to me that it can be pretty informative and detailed for you right there. If you still have any doubts then we can discuss this theme

Australia is one of the most beautiful countries I have ever visited.