
Data Structures Interview Questions: The Complete 2026 Guide
The 30 data structures questions that actually come up at FAANG and top-tier tech companies, grouped by structure, with patterns and complexity analysis.
Insights, tutorials, and updates from the Phantom Code team to help you ace your next technical interview.

The 30 data structures questions that actually come up at FAANG and top-tier tech companies, grouped by structure, with patterns and complexity analysis.

A deep technical guide to database internals interview questions covering B-trees vs LSM-trees, WAL, MVCC, isolation levels, 2PL, OCC, indexing, query planning, replication, partitioning, and sharding.

What the Databricks loop actually tests, from Spark internals to distributed query engines to the leadership principles that decide close calls at offer time.

Engineers consistently underweight the leadership signals interviewers are looking for. This guide decodes what hiring committees actually mean by 'leadership' and shows you how to turn your existing work into evidence.

A practical walkthrough of the DevOps and SRE loop: Linux troubleshooting, networking deep-dives, incident response drills, infrastructure as code, on-call readiness, and scripting rounds.

A rigorous walkthrough of distributed systems interview topics: CAP, consistency models, Raft and Paxos, replication, sharding, idempotency, sagas, 2PC, and event sourcing with diagrams and code.

Twenty DP patterns that cover almost every FAANG interview question, with frameworks, classic problems, and recurrences for each.

A complete 2025 DSA interview guide covering the 7 must-know data structures, 15 essential algorithms, and a 30-day study plan that prioritizes patterns over problem volume.

Master dynamic programming for coding interviews with this comprehensive guide. Covers memoization vs tabulation, classic problems like knapsack, LCS, coin change, house robber, and edit distance, all with detailed Python solutions.

A complete guide for ICs interviewing for their first Engineering Manager role, including the IC to manager transition, 1:1 cadence, performance conversations, and hiring responsibility.

The new grad SWE loop is not a mini version of the senior loop. Here is exactly what entry-level interviewers are looking for and how to prepare for your first tech interview cycle.

A balanced look at the ethics of using AI during coding interviews, covering legal grey areas, professional consequences, and ethical preparation paths.
Compare software engineer salaries at Google, Meta, Amazon, Apple, Microsoft, and Netflix by level.
ATS-friendly software engineer resume templates with company-specific tips for FAANG applications.
Browse 1000+ LeetCode problems with AI-generated optimal solutions and detailed explanations.