Jonathan Aldrich

@jonathanaldrich.bsky.social

2253 Followers 779 Following

Professor at Carnegie Mellon University, working on programming languages and software engineering. Coauthor, Programming Language Pragmatics (videos: https://tinyurl.com/PLP5vids). CTO of noteful.net ACM Publications Board member. He/him.

Me wearing my YouTube Professor outfit: bow tie, jacket, and purple shirt (my favorite color) in front of a gate and a wisteria tree. The original photo was edited with AI to insert a sign saying "Jonathan Aldrich, Director of the Master of Software Engineering Program at CMU, 11/25/2025."

A slide from my talk, talking about how in many languages compilers can rearrange records, which provides good performance and space usage but loses a layout guarantee

Picture of me on a morning run with a sign, Pevensey Road

The CMU Fence, painted by students to say "No rapists on our campus," before it was painted over by the CMU administration.

Me looking penguiny in front of a curving line of pink penguins

Dog at protest

Black and white dog sprawled on tile floor looking up at the camera

Me in formal attire holding Leilei the dog, who always dresses in black and white.

Programming Language Pragmatics textbook cover, showing a waterfall in a woodland

Dog in front of flowers with tongue out