
Senior
Serving infrastructure for Gemini models at Google DeepMind
Join Google DeepMind's team building and scaling serving infrastructure for Gemini models in New York, including large-scale streaming and audio orchestration capabilities. This role requires production ML infrastructure experience — productionizing large language and multimodal models, not just training or research prototyping — plus C++ systems chops and the ability to drive technical direction for a team. Suited for senior engineers who've shipped ML systems at real production scale.
Practice this interview
Free · a live voice mock calibrated to this exact role
Likely format
Google's standard onsite loop typically includes coding, system design/ML infra design, and Googleyness/leadership behavioral rounds.
What this interview tests
- Productionizing LLMs/multimodal models (serving, deployment, evaluation)
- C++ for performance-critical systems
- Algorithm/data-structure choices for scalability
- Root-cause analysis and production debugging of ML systems
- Software architecture for reliability and performance
- Driving technical direction and team roadmap
Common question themes
Design a serving system for a large multimodal model with diverse client configurations
Describe debugging a production quality or latency regression in an ML system
How do you choose data structures/algorithms when scaling a system
Tell me about a technical direction or architecture decision you drove for your team
How would you build monitoring to catch model quality issues in production
Explain a large-scale streaming or real-time infrastructure challenge you've solved
How candidates describe it
Real Senior Software Engineer interview stories — retold from candidates' public write-ups, with sources.
Bloomberg Senior Software Engineer Interview: Five Rounds, Offer
A Senior Software Engineer candidate applied to Bloomberg's London office through the company's careers site and, after an initial screen, went through five separate on-site conversations covering coding, system design, a recruiter chat, and a hiring-manager round, ultimately accepting an offer.
Interviewed October 2022 · London, United Kingdom
Google · L3 Software EngineerOfferGoogle 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 offerGoogle 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
All Google Senior Software Engineer interviews
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