Software engineers can learn everything and can take on whatever tasks. Small teams may look for specific skillsets they need, big companies can afford to hire

Software engineers can learn everything and can take on whatever tasks. Small teams may look for specific skillsets they need, big companies can afford to hire people then find something they can work on later. Also, they are more candidates so they are basically doing a filtering rather than looking for the right candidates. Yes, there are 3 months trial period, but Google will have thousands of candidates every week, they need to quickly filter them rather than evaluating them equally. Many people interviewing don't even know the job they are interviewing for, that's the problem of big organization.