Frontend-focused SWE modernizing Colab's architecture for data science and ML users

Google is hiring a Software Engineer for the Colab team to modernize the frontend architecture serving data science and ML practitioners, and to support production via on-call rotation. The role requires 2+ years of software development with a specific emphasis on front-end and UI work using HTML, CSS, JavaScript, and TypeScript.

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Likely format

Google's standard SWE process: recruiter screen, 1-2 technical phone screens (coding), then an onsite loop of 4-5 rounds covering coding, Googleyness/leadership, and for this role likely a front-end/system-design focused round.

What this interview tests

Frontend architecture and modernization/migration strategy
HTML/CSS/JavaScript/TypeScript proficiency
Production on-call debugging and incident response
Data structures and algorithms fundamentals
Accessible, performant UI development
Cross-functional collaboration with product and engineering

Common question themes

Design an extensible frontend architecture for a growing set of features

How would you migrate a legacy frontend codebase to a modern stack incrementally

Describe debugging a production issue you were paged for

Coding questions on data structures and algorithms

How do you make UI accessible and performant for a technical/data-science user base

Tell me about collaborating with product to define a new feature

How candidates describe it

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

Google · L3 Software EngineerOffer

Google L3 software engineer interview: phone screen, four coding rounds, and the Googleyness round

A candidate with two years of experience went from recruiter outreach to offer over about four months. The onsite was four 45-minute coding rounds — three of them featuring binary trees — and one round turned into a 25-minute chain of follow-ups about approximating an optimal solution at scale.

Interviewed June 2020 · Bangalore, IN

Google · L4 Software EngineerNo offer

Google L4 Software Engineer Interview: Eight Rounds, No Offer

An L4 Software Engineer candidate went through two phone screens, three onsite rounds, a culture conversation, and a team-matching call with a Google hiring manager, then watched the process stall for about a month and a half over a tightened experience requirement before an added extended round ended without an offer.

Interviewed February 2024 · Not specified

Google · L5 Software EngineerNo offer

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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