We use Categories to make searching for jobs easier for job seekers. If you're unsure which category to choose, think about the type of job seeker you're looking to attract.
If your position requires a lot of contact with customers, but also involves food preparation, the Floor category might be a better fit than the Kitchen category.
If you're hiring for a non-food service job, like a delivery driver or a marketing manager, think about the candidates you want to hire. If you want a delivery driver that's knowledgeable about food products, Kitchen might be a good fit. Marketing and office jobs are great for seekers with management experience, so Management would be the place to post your job.
You can always post under one category, and then switch to another by editing your job post.