Company interview guide

Google software engineer interview questions

Practice problem solving, coding communication, system design, and collaboration questions for Google software engineering roles.

AlgorithmsProblem solvingSystem designGoogleyness and leadership

Practice guide: Interview content varies by role, level, team, and location. These representative prompts are based on public company guidance and general interview patterns; Google does not endorse this guide.

Practice library

6 questions, one at a time

Coding questions

Each problem has a full statement, examples, constraints, and a tested solution in Python, Java and C++.

3 questions

EasyLinked listPointers

Reverse Linked List

Reverse a singly linked list in place.

MediumStringSliding windowHash map

Longest Substring Without Repeating Characters

Find the length of the longest substring with no repeated character.

MediumIntervalsHeapSorting

Meeting Rooms II

Find the minimum number of rooms needed for a list of meetings.

System design questions

Turn requirements into APIs, data models, architecture choices, bottlenecks, and explicit trade-offs.

1 question

System design

How would you design a file storage and sync service?

Requirements, consistency choices, metadata design, sync conflicts, and reliability.

Behavioral questions

Prepare truthful evidence of decisions, ownership, collaboration, learning, and measurable results.

2 questions

Problem solving

How do you approach a problem you have never seen before?

How you clarify ambiguity, form hypotheses, and communicate while solving.

Collaboration

Tell me about a conflict with a teammate.

Listening, constructive disagreement, and whether the relationship improved.