Netflix Interview Questions
Practice 106 real Netflix interview questions for 2026 — Netflix interview questions tailored for high-impact engineering and data roles. Covers all top categories — Coding & Algorithms, System Design, Behavioral & Leadership, Analytics & Experimentation, and Data Manipulation (SQL/Python). Real questions from actual interviews with detailed solutions to power your interview preparation and sharpen the problem types Netflix favors. Expect a coding- and design-heavy process: Software Engineer loops dominate, followed by Data Scientist, Machine Learning Engineer, and Data Engineer screens. For Software Engineers (42 questions) the emphasis returns again and again to ads-platform design (frequency capping, demand-side schemas, ad data models), product-facing rendering and deduplication for the homepage, concurrent systems and latency-percentile tracking, plus algorithm problems on trees, graphs and sliding-window arrays. Data Scientists (28) focus on causal inference and experiment analysis (ATE/ITT/TOT/LATE, noncompliance), ranking A/B tests, conversion propensity models and SQL retention cohorts alongside core probability. Machine Learning Engineers (7) test ML platform and scheduling design plus transformer/tokenization fundamentals; Data Engineers (3) emphasize reliable click aggregation, config rollout strategies, and search/JSON-path implementations. Prepare by practicing representative coding problems, system designs, experiment writeups, and clear metric-driven stories.
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Compute minimum semesters to finish courses
This question evaluates graph theory and scheduling competencies, including dependency resolution, cycle detection in directed graphs, and capacity-co...
Design playlist with add/remove/shuffle
This question evaluates data structure design and algorithmic complexity skills, focusing on managing dynamic sets, uniform random selection, and aver...
Dedupe titles in per-shelf viewport
You are rendering a streaming app home page. - The home page consists of shelves displayed from top to bottom. - Each shelf contains a list of titleId...
Implement rotating homepage title selector
This question evaluates understanding of data structures and algorithms for prioritized selection with stateful constraints, focusing on maintaining d...
Show Behavioral Fit and Experience
Show Behavioral Fit and Experience Behavioral and Leadership HR Screen — Software Engineer (Netflix) Context: This is an HR screen focused on your bac...
Implement phrase search and JSON path
This question evaluates the ability to build an inverted index for in-memory exact phrase search and to implement JSON path traversal with wildcard ma...
Describe Leading a Project from Ideation to Delivery
Describe Leading a Project from Ideation to Delivery A hiring manager wants a deep dive into your most impactful project to evaluate ownership, techni...
Determine Maximum Consecutive Order Days Per User
Determine Maximum Consecutive Order Days Per User orders +----+---------+------------+ | id | user_id | order_date | +----+---------+------------+ | ...
Implement a Weighted Eviction Cache
This question evaluates proficiency with data structures and algorithmic design for resource-constrained caching, specifically weight-aware eviction p...
Design experiment on culture memo emphasis
This question evaluates competency in experimental design and statistical analysis for product metrics, covering hypothesis specification, randomizati...
Design an ad frequency capping system
This question evaluates a candidate's ability to design scalable, low-latency distributed systems that enforce ad frequency caps across users, devices...
Find longest unique show window
Given an array of show names (strings) representing a user's viewing history, return the start and end indices of a longest contiguous subarray that c...
Simulate a TTL Cache with LRU Eviction
Simulate a TTL Cache with LRU Eviction Implement a deterministic simulator for a cache that combines per-key expiration with a fixed-capacity least-re...
Compute Minimum Task Completion Time
This question evaluates understanding of graph algorithms (topological sort and DFS), dependency scheduling, cycle detection, and critical-path comput...
Implement Cache, Undo, and DFS
This question evaluates implementation skills in data structures, algorithmic complexity, and state-management patterns by combining a timed in-memory...
Implement Streaming Word Counter
Implement a class that records word frequencies from a stream of text. The class should support the following operations: 1. add_text(text: str) -> No...
Implement TTL Cache and Tree Balance Reporting
Complete both coding tasks. Task A: Time-limited cache Design and implement an in-memory cache where every key expires after a time-to-live duration. ...
Solve sliding-window and disjoint-string-pairs tasks
This question evaluates proficiency in string-processing algorithms, sliding-window techniques, efficient set or bitmask representations, and combinat...
Return valid task order from prerequisites
You are given N tasks labeled 0..N-1 and a list of directed dependency pairs [(a,b), ...] meaning task a must be done before task b. 1) Return one val...
Find user pairs with overlapping last K movies
You are given the same user movie-watching histories as in the previous problem. Each user’s history is an ordered list of movie IDs from earliest to ...