Usually a project that will give you decent insights takes some time to build. Usually at least 6 months and then several months to see what you did wrong. So if you did this cycle once, you are not aware of how you screwed it up and if other methods would yield better results. If you did it twice you already have the basis to compare methods. Senior ideally tried several approaches and there is simply no time for this in 2 years imo.

> I would say yes...

Thanks. Looking at this thread I changed my perspective. 1. it's context based, you can be senior after 3 months if your other senior left and you have couple of new people that you need to onboard 2. titles mean absolutely nothing when hiring 3. If I am doing the same work as others I deserve the same title (age made me uncomfortable)

So yeah, initially I got offended because I called myself senior later than I could and it seemed unfair.