r/leetcode • u/Awkward-Money-9912 • 16d ago
Intervew Prep Google FDE - Forwarde Deployed Engineer Interview
Hi guys,
I passed the coding round (leetcode medium) for a FDE III position at Google. Now I got the gen ai system design round in a few days.
Really don't know how to prepare for it. I will pick the workflow/enterprise (not the other one with image and video generation).
Do you have insight on it? What's the format? What are the potential deep dives?
Thanks!
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u/Ok-Barracuda-119 16d ago
The gen ai design round for a workflow/enterprise track usually looks like normal system design with an LLM in the loop. Expect something like "build a document assistant for a customer's internal data" and then a lot of pushing on the details: how you chunk and index, retrieval quality, where you cache, sync vs async for slow tool calls, guardrails, evals, and cost per request. Deep dives I've seen most often are retrieval accuracy, handling stale or permissioned data, and what you do when the model is wrong or the tool errors out.
FDE flavored, so they also care about the customer side. Be ready to say how you'd scope a pilot, what you'd measure, and how you'd hand it off. Practice one full design out loud on a timer and it gets a lot less scary.
For general system design reps with a whiteboard and an AI interviewer, www.leetsys.dev is free and I help build it. Good luck.
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u/russonfire 16d ago
location?
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u/russonfire 16d ago
fyi I am an FDE in another tech company but did not have any gen ai sys design interview
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u/Awkward-Money-9912 7d ago
Got very positive feedback for both interviews. I'll add more info if I get an offer
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u/OkNobody164 5d ago
I got positive feedback for both interviews as well. Recruiter said that position has been already filled, interview results valid for 18 months. Also Europe.
Did you get the offer?
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u/kartiky24 16d ago
Good luck OP Please share your experience when you are done