Scale AI Software Engineer Interview Questions
Master your tech interview with our curated database of real questions from top companies.
Compute party hours per town and city gaps
You are given (1) a region table describing a hierarchy of locations and (2) a list of party attendance time intervals (all timestamps occur within a ...
Design pipeline using classification and embedding services
You are given two black-box ML services: 1. Classification Service - Input: One or more text documents. - Output: A label for each document (e.g...
Design CSV upload endpoint with GPT classification
You are building a backend service that needs to process two CSV files and then call an external GPT-like API for classification. Requirements 1. HTTP...
Compute party time blocks per neighborhood
You are given two datasets: 1. Parties: - party_id (string or integer) - start_timestamp (e.g., UNIX timestamp or datetime) - end_timestamp (...
Find LCA in a N-ary tree via DFS
You are given the root of a rooted N-ary tree (each node can have zero or more children) and two distinct nodes p and q that belong to the tree. Desig...
Quantify impact of your projects using STAR
Interview-style behavioral prompt: "Pick one or two of your impactful projects and walk me through them in detail. Focus on what you did and how you m...
Describe how you resolve conflicts at work
Interview-style behavioral question: "Tell me about a time you had a conflict with a teammate, stakeholder, or manager. What caused the conflict, how ...
Describe how you learn quickly in new domains
Interview-style behavioral question: "Tell me about a time you had to learn something very quickly in order to succeed in a project or role. How did y...
Design a large-scale ticketing system
Design an online ticketing system similar to Ticketmaster that supports very high concurrency for popular events where many users try to purchase tick...
Compute clock hand angle with seconds and milliseconds
You are given a time in the format "HH:MM", representing a 24-hour clock time with hours and minutes. Extend this to potentially include seconds and m...
Explain worker state machine load balancer design
You are designing a lightweight load balancer for a Python-based backend service that dispatches tasks to a pool of worker processes. Describe how you...
Implement Hook and Modify UI Interactions
Task: Implement a custom React hook and wire UI interactions Context You are working in a React app that already includes a basic API module and a sim...
Compute community ranges and town idle hours
You are given two in-memory datasets for a party-planning app. 1) PartyWindow: {partyId: string, startTime: ISO-8601 UTC datetime, endTime: ISO-8601 U...