CoE rejection & work visa after years?

Going to be a long one, thanks in advance for reading.

As the title states, I was previously rejected CoE once due to submitting wrong banking information (I had submitted a checking account with cash flow as I didn't have a savings account, financial instability was cited) and the other time for not properly explaining what happened the first time.

Granted, it was my fault for applying fully by myself (my country didn't have any immigration lawyers or firms either). Anyhow, a few years have passed since then. Currently I am in Canada as an international student, halfway through my university degree.

I plan to apply to various countries for jobs after graduation (I don't plan to stay in Canada) with Japan being one of the choices. If, in these circumstances, I apply for a work visa, will I be rejected (basically will the chances of being rejected be higher due to the previous CoE rejections?)

Major is Software Engineering if it's of any relevance.

When you say “wrong banking information “ you mean that the documents itself were valid and correct (and for you)? Ie you didn’t try to commit some type of visa fraud. But simply your financial situation back then didn’t fulfill the criteria for the visa you had applied for ?

If that’s the case I wouldn’t expect a rejection of your new situation has the correct documents. With a work visa you don’t need to show your current financial status but your future earnings while working in Japan.

I’d probably prepare myself for a bit longer wait than otger applicants, but if you look at the thread here where people discuss their COEs it seems that there isn’t a standard turnaround time anyway.

I would add, the previous CoEs were for a study visa, not for a work visa.

To LikeBike:

Yes, the thing was, I didn't know that having a constant cash flow (in and out) would be marked as a sign of financial instability. All the documents were valid.

It has already been almost three years, and another three years probably before I apply. I know I'm asking too early, but I do want to work in Japan, and have learned the language up to N3, so don't want my efforts to go to waste.

To LikeBike;

Seems like my previous answer wasn't posted for some reason.

Anyhow, yeah, no fraud whatsoever, just that my checking account (to be more specific, my father's) had constant cash in and out in large amounts, which was flagged as a sign of financial instability.

I have around three more years before I graduate, I know I am asking this a bit too early but I just want some second option. I have always been interested in Japan and it's culture (mostly cause I interact with JP people a lot as an artist) and have learned the language up to N3. Don't want my efforts to be wasted.

Your situation has changed completely as you are going from applying for student visa to being a graduate.
Also, you say submitting wrong banking information (I had submitted a checking account with cash flow as I didn't have a savings account, financial instability was cited)
I am not sure "wrong banking information" is correct, but probably what they would have been looking for is income (deposits) and spending habits. If you had a "savings" account you would have submitted both. (Personally I only run one account and have done so for decades.) If your financial situation was erratic or with limited funds (no safety net/buffer), then "instability" would be a reasonable conclusion.

essentially Japanese have only 普通預金, the translated word is saving accounts. 当座預金, checking accounts are considered for company's usage. (Japanese don't have personal check books.)
at that time you were requested to show the balance and statements of saving accounts (and/or checking accounts) to know you have enough money to survive in Japan without working.(they wanted to know whether your intension was working or studying.)