OK, the one for cook looks like a soccer ball. Technologist? Turns out I am a technologist and all this time I thought I was a Sys Admin. I wrote Fireman but I guess that is no longer gender inclusive. Scientist just had a dude standing next to a square. Detective was just a square.
I added type-ins for firefighter and technologist. If the detective is just a square, there is something wrong with your font. These are the official names of these emojis.
Cool concept though.