Other recruiters might have different viewpoints, but in my opinion, I think the idea of 'jumping jobs' too much is a dying mindset. I, personally, do not hold anyone negatively for having a few jobs of just a year or two years or whatever. If a candidate has been getting fired year after year at new companies, it'll be really obvious once I talk to them. But otherwise, I've talked with so many candidates who came into a company, built a tool/process/product, and then left once their project was done to find something else new and most of the hiring managers I've worked with have no issue with that