Worst Interview process and salary structure - Anonymous employee Orangetoolz Employee Review

I've applied for Jr. Full Stack Engr. They took interview from me with 3 steps- online coding test,onsite written test, onsite viva. After all steps finished , HR called me and offer me 10k salary with 3 years contract. I was surprised cause after taking 3 steps long process of interview how can they offer 10k salary to a Jr Engineer. They also told, "We are US based company. And we don't do any local work". So how can a multinational company offer 10k salary to a Jr Engineer.