Google Interview Questions & Answers 2026
Complete Google software engineer interview guide covering coding, system design, and Googleyness rounds.
Quick Overview — Google Interviews 2026
- Total questions covered: 5+ across all rounds
- Interview rounds: Phone Screen → Onsite (5 rounds) → Hiring Committee
- Question types: System Design, Coding, Behavioral
- Difficulty: L3, L4, L5, L6
Google Interview Process
The typical Google interview process consists of 3 rounds. Understanding each round helps you prepare strategically.
How to Prepare for Google Interview
Follow this structured preparation plan to maximize your chances at Google.
Week 1-2: Fundamentals
Review core concepts for your role. For technical roles, practice DSA (LeetCode medium). For non-tech, review domain fundamentals and Google's business model.
Week 3: Company Research
Study Google's products, recent news, culture values, and competitors. Prepare your "Why Google?" answer with specific examples.
Week 4: Mock Practice
Do 3-5 mock interviews using our AI Interview Gyani tool. Practice explaining your projects and past experiences using the STAR method.
Final Days: Review & Rest
Review these 5+ questions and answers. Prepare 5-6 questions to ask the interviewer. Get proper rest the night before.
Top Google Interview Questions with Expert Answers
System Design Questions(2 questions)
Q1. Design Google Search Autocomplete
HardView Expert Answer
Trie data structure with frequency counts. Components: Query Log, Trie Service, Ranking Algorithm. Handle: real-time updates, personalization, trending queries. Scale: billions of queries.
Q2. Design YouTube video recommendation system
HardView Expert Answer
Collaborative filtering + Content-based. Components: User Profile Service, Video Feature Extraction, ML Ranking Model, A/B Testing Framework. Handle: cold start, diversity, real-time updates.
Coding Questions(2 questions)
Q1. Find median of two sorted arrays
HardView Expert Answer
Binary search approach. Time: O(log(min(m,n))). Partition both arrays such that left half contains smaller elements. Handle edge cases with empty arrays.
Q2. Implement LRU Cache
MediumView Expert Answer
HashMap + Doubly Linked List. Get and Put in O(1). HashMap maps key to node, DLL maintains access order. Evict least recently used when capacity exceeded.
Behavioral Questions(1 questions)
Q1. What is your most significant technical achievement?
MediumView Expert Answer
Describe a complex technical problem you solved, your approach, the impact, and what you learned. Focus on technical depth and problem-solving methodology.
Pro Tips from Past Google Candidates
Use the STAR method consistently
Structure every behavioral answer as Situation → Task → Action → Result. Interviewers are trained to evaluate STAR responses.
Ask thoughtful questions at the end
Ask about Google's upcoming projects, team culture, or growth trajectory. Never ask about salary/benefits in the first round.
Research recent company news
Mention Google's recent product launches, earnings, or industry moves in your answers. It shows genuine interest.
Prepare your 'Why this company?' answer
Don't give generic answers. Be specific: 'I admire Google's [specific project/initiative] because...' with personal connection.
Follow up with a thank-you email
Send a brief, personalized thank-you within 24 hours referencing specific discussion points. It sets you apart from 90% of candidates.
Common Mistakes to Avoid
Practice These Questions with AI
Get instant feedback on your answers with our AI-powered mock interview tool. Practice Google interview questions with real-time evaluation and scoring. Used by 50K+ candidates.
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