Kernel and storage systems engineer optimizing Google Cloud's flash storage stack

Google Cloud is hiring a software engineer to optimize the kernel storage stack, Linux drivers, firmware, and user-space interfaces for flash storage, plus build fleet-scale storage analytics infrastructure. The JD asks for 5 years building large-scale infrastructure/distributed systems and hands-on kernel/kernel-driver experience.

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Likely format

Google SWE loop: phone screen with coding, then onsite/virtual onsite rounds mixing coding (DS&A), systems/domain deep-dive on storage or kernel internals, and a Googleyness/leadership behavioral.

What this interview tests

Kernel storage stack and Linux driver internals
Firmware / user-space interface optimization for flash
Fleet-scale storage analytics and monitoring infrastructure
Storage security hardening
Large-scale distributed systems design
Data structures & algorithms

Common question themes

Describe a kernel driver or storage stack optimization you shipped and how you measured it

Design real-time analytics infrastructure to monitor storage device health across a large fleet

How would you improve storage security without regressing performance

Tradeoffs in kernel-space vs user-space storage optimization

Data structures/algorithms coding problem

How would you use device telemetry to inform life-cycle/repair decisions

How candidates describe it

Real Software Engineer interview stories — retold from candidates' public write-ups, with sources.

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Google L4 Software Engineer Interview: Eight Rounds, No Offer

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Google L5 software engineer interview: phone screening, three onsite rounds, system design, and a late rejection

A candidate interviewing for an L5 role went through a phone screening, three onsite coding rounds, a mobile system design round, and a Googleyness and Leadership round. Two of the four technical rounds went poorly by the candidate's own assessment, and after roughly two months of silence the recruiter reported that the role had been closed.

Interviewed January 2023 · Not specified

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