Jerome Simeon  Jerome Simeon photo       

contact information

Research Staff Member
Thomas J. Watson Research Center


Professional Associations

Professional Associations:  ACM SIGMOD


Professional. I am a Research Scientist at the T.J. Watson Research Center in New York. My research background is in databases (notably query languages design and query compilers) and programming languages (notably type systems, compilers and verification). Some of my recent work include: programming models for conversation systems (chatbots), formally verified query compilers, and large-scale data processing for Cloud platforms.

I was a key contributor to the W3C XQuery language from 1999 to 2009. Before joining IBM, I was at Bell Laboratories from 1999 to 2004 and I hold a PhD in Computer Science from University of Orsay (Paris XI).

I have made various contributions to IBM products over the years, including the WebSphere product line and Cognos (XML Feature Pack), DataPower, IBM BigSQL, and IBM's Operational Decision Manager (ODM Advanced).

I have also made contributions to open-source: I am a lead developer for Q*cert, a platform for building query compilers implemented using the Coq proof assistant. I have also worked on Galax, one of the earliest XQuery implementations, and on wcs-ocaml, a sdk in OCaml and a command line interface for the Watson Conversation Service.

I am a co-organizer for IBM Programming Language Day 2017.


Personal. I am interested in the performing arts. I play the piano. Lately I have been playing mostly chamber music. I am a co-founder of Between the Seas, a Festival of Performing Arts for the Meditteranean which has been running in New York and Athens since 2011. I occasionally blog about computer science and other topics at ashortdistanceahead.

I was part of the team that built ChessEye, which lets you play chess against a computer using a regular chess board, which was built at the Techcrunch Disrupt Hackathon in 2016. See also the video.