Taste tester? That's got to be some kind of a dream job. You'd get to taste pizza, ice cream, or pasta all day? Sign us up!
Sadly, not all tasting jobs are that delicious. For a pet food taste tester, it's a less exciting job. Humans are hired to think up and design new pet foods and then taste the results. Since dogs will pretty much eat anything, it would be difficult to have them fill out a survey of which flavors they found most palatable at the end of a taste test. So, a person has to do it.
Fortunately, a tester doesn't have to eat dog food every day, since a lot of their work goes into documenting and researching food. Then when they do have to eat it, they always take a bite, then spit it out. This way, dog food makers can assure customers that every product is tasty and appealing to canines. You wouldn't want your dog to eat something lacking in seasoning, would you? Thankfully, dog food tasters are there to make sure that never happens.