JPMorgan Chase·Software Engineer·Technical Phone Screen
- Given an array of integers and a target value, return the indices of the two numbers that sum to the target.
“Classic Two Sum.”
Large Enterprises
Most of these JPMorgan Chase write-ups come from Software Engineers (56), then Product Managers (8) and Machine Learning Engineers (2). The most reported rounds are the technical phone screen (33), the system design round (13), the hiring manager screen (8) and the behavioral / leadership round (5).
69 interview notes · updated Sep 2026
“Classic Two Sum.”
“This tripped me up a bit because I kept conflating the two directions.”
“I knew this problem but still fumbled explaining my reasoning out loud.”
“The numbering logic tripped me up more than I expected.”
“I started with the thread-safety angle which was the right call.”
“I fumbled around talking about user research and market gaps but it felt pretty surface level.”
“I had a project ready but fumbled the 'specific contribution' part.”
“Knew immediately it was a greedy problem but fumbled the implementation for a bit.”
“I went straight to the user segments because I figured that's where the signal would be.”
“Sliding window was the right move but the circular part tripped me up initially.”