Nextdoor Interview Questions
Practice the exact questions companies are asking right now.
Which culture principle resonates and why
Culture-Fit Reflection: Principle, Evidence, and Thoughtful Critique Prompt After watching the company’s culture-fit video: 1. Select one specific pri...
Build an end-to-end ML classification pipeline
End-to-End Tabular Classification Pipeline (Python) Context You are given a tabular dataset in a CSV file and asked to build an end-to-end machine lea...
Implement ordering with dependency constraints
You are given n items labeled 0..n−1 and a list of precedence constraints edges[i] = [u, v] meaning u must appear before v. Return a valid ordering of...
Describe CAP, distributed systems, multithreading experience
CAP Theorem, Distributed Systems Design Decisions, and Multithreading Context Provide a structured answer that both explains the concepts and shows ho...
Answer HR motivation and project experience questions
You are interviewing for a technical role (e.g., software engineer, data scientist, or research engineer) at a tech company. In an HR screen, the recr...
Build and evaluate a Colab classification model
End-to-End Tabular Classification Workflow in Google Colab You are asked to design and implement a complete classification workflow for a tabular data...
Implement version string comparator with extensions
Implement a function compareVersions(a, b) that compares two software version strings. Each version consists of dot-separated numeric components (e.g....
Implement and use a version comparator
You are given up to 100,000 version-like identifiers (e.g., "1.0", "01.2.0", "2.0.0-alpha", "1.10.3"). Implement compare(a, b) that orders identifiers...
Describe resume highlights and confirm logistics
Behavioral: Walk Through 2–3 ML Projects + Logistics Context You are interviewing for a Machine Learning Engineer role in a technical screen that emph...
Build an end-to-end ML classification pipeline
Build a Reproducible End-to-End Binary Classification Pipeline for a CSV Dataset Context You are given a single CSV file that fits in memory. The data...