Jain Global·Software Engineer·Technical Phone Screen
Apr 2026
Quant Developer interview at Jain Global with a meaty systems question about processing a huge flat file as fast as possible on one machine. Pretty technical, felt more like a design session than a coding screen.
- You have a very large text file where each line is a city name and a temperature reading. How would you compute the min, max, and average temperature per city as fast as possible on a single machine in Python?
“This one went longer than I expected.”