F5 Networks·Mobile Engineer·Online Assessment (OA)
Apr 2026
F5 Networks OA for a Mobile Engineer role, one coding question, 40 minutes on the clock. Pretty straightforward setup but the problem itself had some moving parts worth thinking through.
- You're given two arrays of length n: one with tweet content as strings, one with publication timestamps as integers. You're also given a current time and a time window. Find the top 3 most popular hashtags among tweets published within [currentTime - timeWindow, currentTime].
“Spent the first few minutes just parsing what they were actually asking.”