Prepare for your Netflix tech interview

System design and behavioral rounds calibrated to Netflix’s engineering-excellence and high-performance culture.

Socratify AI

The Interview

What Netflix is looking for

System Design Interview

Distributed Systems Design

01CDN Architecture & Edge Caching

02Fault Tolerance & Chaos Engineering

03Scalability & Throughput Estimation

04Data Pipeline & Streaming Design

Coding Interview

01Algorithm Design & Complexity

02Data Structures Selection

03Problem Decomposition

04Clean, Readable Code

Values Interview

Netflix Culture Fit

01Judgment & Informed Decisions

02Impact & Results Orientation

03Transparency & Direct Communication

04Learning Agility

Freedom & responsibility culture//Chaos engineering mindset//Global CDN at 250M+ subscriber scale

Practice Library

Netflix exercises

Ready to ace your Netflix tech interview?

Prepare for your Netflix tech interview

System design and behavioral rounds calibrated to Netflix’s engineering-excellence and high-performance culture.

Socratify AI

The Interview

What Netflix is looking for

System Design Interview

Distributed Systems Design

01CDN Architecture & Edge Caching

02Fault Tolerance & Chaos Engineering

03Scalability & Throughput Estimation

04Data Pipeline & Streaming Design

Coding Interview

01Algorithm Design & Complexity

02Data Structures Selection

03Problem Decomposition

04Clean, Readable Code

Values Interview

Netflix Culture Fit

01Judgment & Informed Decisions

02Impact & Results Orientation

03Transparency & Direct Communication

04Learning Agility

Freedom & responsibility culture//Chaos engineering mindset//Global CDN at 250M+ subscriber scale

How It Works

Master Netflix Tech Interviews

Distributed systems and culture-fit rounds, scored on Netflix’s engineering and values dimensions. · Click to expand

1Your Tech Goals

System Design

Practitioner

Distributed Systems

Practitioner

2Tech Case Prep

Design the Netflix video streaming pipeline to serve 250M subscribers with sub-2-second...

CASE INTERVIEWHard

Netflix

3Frameworks

Framework

Is the regression in the application service layer?

New code path introducing O(n²) complexity?

Flame graph shows 60% CPU in nested loop (added in PR #4821)

p99 correlated with request payload size — O(n²) signature

Thread pool exhaustion or blocking I/O?

Thread pool utilization: 94% (up from 41% pre-deploy)

Synchronous Redis call added to critical path — no timeout set

Is the regression in the data access layer?

Database query plan changed (missing index, stats stale)?

EXPLAIN shows full table scan on orders (87M rows) — index dropped in migration

DB CPU: 88% vs 32% baseline; connection pool wait: +210ms median

Cache hit rate degraded after deploy?

Redis hit rate: 61% (was 94%) — key schema changed, cold start in progress

Is the regression caused by infrastructure changes?

Network latency or instance type change?

Deploy rolled new instance type: c5.2xlarge → c5a.2xlarge (AMD); 12% lower network bandwidth

Cross-AZ traffic increased 40% — RDS replica not updated to same AZ

Config drift — timeout or concurrency limits changed?

Max concurrent DB connections reduced from 200 → 50 in new env config

4Feedback

System Design

Distinctive

Scalability & Reliability

Strong

Algorithms & Complexity

Meeting Bar

Technical Communication

Strong

Repeat

Practice Library

Netflix exercises

Design the Netflix video streaming pipeline to serve 250 million subscribers with...

CASE INTERVIEWHard

Streaming Media · System DesignNetflix

Design a content recommendation system for Netflix that personalizes the home row for...

LEARNHard

Streaming Media · System DesignNetflix

Implement a circuit breaker pattern to prevent cascading failures in a microservices-based...

LEARNMedium

Streaming Media · Resilience PatternsNetflix

Tell me about a time you identified and fixed a production reliability issue before it...

BEHAVIORALMedium

Behavioral · Engineering JudgmentNetflix

Describe a situation where you disagreed with your team’s technical direction and how...

BEHAVIORALMedium

Behavioral · Direct CommunicationNetflix