I work as a researcher at Microsoft Research (Redmond, USA) in the Cryptography Group.

Professional interests

cryptography and security, computation on encrypted data, applied cryptography, homomorphic encryption, secure multi-party computation, differential privacy, privacy-preserving machine learning and data science

Check out the Microsoft Research project pages for homomorphic encryption and MPC. I am also the main developer of the homomorphic encryption library SEAL.

In 2016 we won the homomorphic encryption challenge in the iDASH Secure Genome Analysis Competition (link here).


I did my MSc in mathematical physics at the University of Helsinki in Finland. After spending some time as a PhD student at the University of Helsinki, I decided to apply to the PhD program at UC Berkeley, where my interests shifted from mathematical physics more towards algebra, number theory and algebraic geometry, and eventually to cryptography.

My advisor at Berkeley was Ken Ribet, and I also worked a lot with Kristin Lauter, with whom I did internships in 2013 and 2015. I received my Ph.D. in 2015, and joined Microsoft Research as a Post-Doc Researcher.

In my free time I enjoy bouldering, fitness, and playing classical piano music.


The Cryptography Group is constantly looking for interns to work on a wide variety of practical and theoretical problems in cryptography. Send me an email to learn more about the opportunities we might have for you!