Noah Mendelsohn

Professor of the Practice
Tufts University Department of Computer Science


Spring term of 2022 I am teaching CS 117 Internet-scale Distributed Systems.

Contacting me

Spring term of 2022 I teach Tuesdays and some Thursdays, and often I come by my office mid-afternoon on those days if I am on campus. See also formal office hours below.

The best way to reach me is via e-mail to I read that regularly, including when I am away from home or office.

Tufts office is:

Joyce Cummings Center 325
177 College Ave
Medford, MA, 02155

I prefer e-mail whenever that's quick enough for you, but for cases where it's urgent that you speak to me, I have established a Google Voice number 617-506-3994 that you can call or text. When you call, it will ask your name, and then it will try ringing my mobile, my home, etc. Be patient, it can take a minute or so while it tries my phones.

Office hours

Information about office hours is available on my office hours page.

You may also email me if you have a need to meet outside of regular office hours or if you are not a member of the Tufts community. When I am on campus we can meet in person, but I am available many more times for meeting from home via zoom. Email me if you need me and we'll set something up.

Work outside of Tufts

Until summer of 2013 I was for several years the chair of the World Wide Web Consortium's Technical Architecture Group; the TAG is the senior steering committee responsible for the architectural integrity of the World Wide Web. I retired from IBM in 2010, and I hold the honorary title of IBM Distinguished Engineer Emeritus.

More information

Those of us who worked at W3C tend to find a lot of our specification drafts and e-mails posted publicly on the Web. That greatly increases our search karma so... if you do a Web search for my name, most of what comes back will indeed be about me. Other sources of information about my work, hobbies, etc. outside of Tufts can be found at:

The Web site includes my work history, a list of my publications and talks, and a page describing some CS papers that I particularly like.