Hi! I'm Josh Zimmerman.
I'm a senior studying Computer Science at Carnegie Mellon University (CMU).
I was a TA for 15-122: Principles of Imperative Computation during the F12 and S13 semesters. I taught 15-131: Great Practical Ideas for Computer Scientists (a course that teaches basic UNIX and debugging skills) during F13.
If you're looking for my resume you can find it here (last updated: Aug 26, 2014).
Here is my Github profile and an error-monitoring script I wrote that doesn't show up on my Github profile.
You can find my blog here.
Otherwise, perhaps you're looking for the Spring 2013 15-122 website (where my handouts for that semester are hosted) or the Great Pratical Ideas for Computer Scientists course site?
If you want to contact me, you can reach me at jzim...@andrew or the address listed on my resume.