Should I enter Thailand on a tourist visa and switch to a Non-B visa after getting a job offer?

Get your visa first

Why don't they organise everything before you come? That would be easier

I was told by my employer and people on this group that you can't change from a tourist visa to a non-b without leaving the country. So best to get relevant documents and enter with the non -b

Ur company should apply WP3 for you and sent all the required documents(each country might be a bit difference list) over to you then you can use it to apply non b at the embassy before come to Thailand. However it also depend on your company but that’s the normal process.

It’s the same non-immigrant B (B means business) visa for any type of employment

What kind of Non B visa will be needed?

For teaching ?

Or business ?

What was the agreement with the hiring company? If they apply for the WP3 letter at ministry of labour, it takes around 3 months and then with that letter you can apply for a non-immigrant B visa at an embassy. If you come as tourist, you can come right away but might not have enough time to receive the WP3 letter in time.

My question: what's your risk tolerance?

In theory, you *can* enter on a tourist visa, and get a one year extension of stay based on employment inside Thailand. However, I don't think it's the best strategy.

You can get a 90 day single entry Non-B visa outside of Thailand, which will let you get a one year extension of stay based on employment. This visa requires a lot of document from the employer, including the contract. It'll also speed up the process of getting a work permit as well. It will also show you the employer knows their visa laws and want to do everything by regulations.