Yes and no.
Casteism is virtually a non-existent concept among the Indian diaspora in the West, who are mostly in the second generation or further, though the US is possibly an exception. If you asked an Indian person in Australia about casteism then they would look at you as if you were asking something about India history and implied they weren't Australian.
Furthermore casteism in the Indian American circles or even the Indian American IT industry may actually be worse than the casteism in India, because caste is a rare discussion point in the Indian tech world, and casteism is a less poignant issue in South India where most of the tech industry is based.