mobile_mara · 3 replies
i got the OA link for T-Mobile and it says CodeSignal, 70 minutes, 2 problems. i've been grinding LeetCode but i'm spiraling a little. can anyone tell me: is it timed per question or overall? has anyone seen hard-difficulty problems or is it mostly mediums? do they care about language choice?
also this is for a software engineering role on their network platform team, if that's relevant. i really don't know what domain knowledge that means i need.
it's overall timing, not per question. you manage the clock yourself. i've seen people rush the first one and run out of time on the second, which is usually harder. budget 25 minutes on the first, 35 on the second, and leave a few minutes to test edge cases. one null input case has saved me on OAs more times than i can count.
network platform team might throw in one question that's more systems-adjacent. i interviewed for a similar team and got a question about processing streaming event data efficiently. not quite a pure algo problem, had more of a real-world framing. know your data structures and be ready to talk tradeoffs out loud.
honestly the OA is probably the least stressful part of the T-Mobile loop based on what i've read here. the behavioral panel is where people get tripped up. don't over-rotate on algo prep at the expense of having 6-8 solid STAR stories ready.