My name is Aleksejs Popovs. I usually go by my first name, you can pronounce it like ‘Aleks.’

I am originally from Riga, Latvia, where I graduated from the Riga State Gymnasium #1 in 2016. I got a BSc in Mathematics with Computer Science and in Philosophy from MIT in 2020.

I care about building computer systems that respect their users and keep them safe against real-world threats. I also like philosophy of language, metaphysics, and weird music (which I strongly believe should be purchased DRM-free, not streamed). I have a little blog called the kitchen floor wax museum.

I work as a Security Engineer at Duolingo. Before, I have worked on improving the performance of the open-source zero-knowledge cryptography libraries libsnark and libiop and interned on the Product Security team at Dropbox and with the Cryptography Services practice at NCC Group.

If you'd like to know how I'm doing, check out my twitter. If you'd like to say hi, email me at