You won't be able to pass it off as a tailored jacket. However, if it's cool enough outside, you might be able to get away with it just as much as you would would a shirt with no jacket
Also, how much time/money do you have? You may be able to find something that fits at a thrift store, with a bit of work. (I assume money is a constraint, otherwise you could just buy a blazer that fits)
for what i remember from the top of my head ,some of them are it/digital services , postal , hospitality, i can't remember , what the rest of them are?
It depends on context. If you're a student and it's the general uni jobs fair expectations will be low. If it's an industry specific event expectations will be higher. Chinos/tailored trousers + Oxford shirt + some appropriate top layer (blazer or jumper) is a basic formula. Given your position I would focus on making sure the other elements fit well rather than overly worrying about a jacket