Which privacy blockchains are worth learning and how do you explain them in interviews?

I’ve been exploring privacy blockchains these days like the use of zero-knowledge proofs (ZKPs), confidential transactions, or privacy-preserving smart contracts.

Names like Aleo, Aztec, Mina, Secret Network, and Oasis keep coming up, but I’m still trying to figure out which ones are actually in demand in real-world projects or hiring pipelines.

Can any developer tell me how do you describe hands-on work with ZK circuits, MPC, or private dApps when talking to recruiters who may not be technical?

I am also curious to understand from recruiters how you evaluate if the candidate really understands privacy-preserving cryptography or just repeating buzzwords from tutorials?

Would love to hear from anyone who’s worked or hired in ZK-based or privacy-first ecosystems.