Scale AI Coding Interview Questions
14 coding questions reported by candidates who interviewed at Scale AI, out of 20 Scale AI questions we track. They average 3.0/5 difficulty (medium). Most common topics: Scale.ai, Medium Difficulty, SWE, MLE. 13 were reported asked within the last year, most recently in July 2026.
Practice Scale AI questions →Difficulty
- 2/5 — easy1
- 3/5 — medium12
- 4/5 — hard1
Asked for SWE (14), MLE (5), RS (1)
Reported Scale AI coding questions
Debug a Multi-File Project Assignment System (Fix Failing Tests)
3/5This debugging task, reported from Scale AI interviews, drops candidates into a multi-file project assignment codebase with failing test cases. Developers must navigate a complex software structure involving numerous source files and structured data assets to isolate defects, interpret test failures, and apply correct patches. The assessment measures code comprehension, debugging methodology, and systematic problem-solving within unfamiliar environments. Examining the complete project setup, codebase context, and model solution requires a paid subscription.
asked July 2026Scale.aiTask Scheduler with Dependencies and Deadline Updates
4/5Tackle advanced concurrency and data structure design problems often featured in interviews at companies like Scale AI. This challenge builds upon classic task management systems by incorporating dynamic priority adjustments, requiring you to handle late-breaking deadline modifications efficiently while maintaining a correct processing order. It tests advanced heap manipulation techniques and lazy update strategies. Unlock the complete architectural details, optimal algorithmic design, and verified model solution through a paid subscription.
asked July 2026Scale.aiTask Processor with Subtasks: a task becomes runnable only after all its subtasks finish
3/5Tackle an advanced workflow scheduling challenge inspired by real-world engineering interviews at Scale AI. This problem tests your expertise in graph theory, dependency management, and priority queue manipulation to sequence dependent jobs correctly. You will design a processor that respects prerequisite hierarchies while dynamically resolving scheduling conflicts based on urgency and identifier constraints. Access the complete scenario breakdown, test harnesses, and optimal algorithmic solution by subscribing to our platform.
asked July 2026Scale.aiParty Time Blocks per Neighborhood (Intervals Aggregation & Free Time)
3/5Reported from Scale AI technical interviews, this interval-processing task requires analyzing scheduled time blocks across various districts to summarize overall spans and identify vacant gaps. Developers must merge overlapping time frames, compute overall boundaries, and determine unoccupied intervals within each neighborhood's active range. This problem evaluates sorting algorithms, interval manipulation proficiency, and edge-case handling for continuous ranges. Review the full problem statement, sample datasets, and verified model solution with a subscription.
asked July 2026Scale.aiParty Times / Peak Concurrent Parties (Time Range Overlap Counting)
3/5This Scale AI interview question challenges you to analyze timestamped intervals to determine peak activity levels across hourly intervals throughout the day. You will practice parsing temporal data, managing overlapping ranges, and identifying maximum concurrent loads efficiently. The full problem statement, input formats, and optimal model solution require a subscription.
asked July 2026Scale.aiPoker Hand Pattern Detection with Wildcard Jokers
3/5Reported as an interview question at Scale AI, this task uses object-oriented programming to build pattern detection logic for traditional poker hands, with an exciting twist involving wildcard jokers. The exercise evaluates your ability to design clean, extensible class hierarchies and implement complex combinatorial rules for matching ranks and suits. You must write flexible validation functions that seamlessly account for versatile substitute elements within card collections. The full problem and model solution require a subscription.
asked July 2026Scale.aiTask Processor with Dependencies (Subtasks Must Be Consumed First)
3/5This Scale AI technical screening task requires you to build an advanced task scheduler that respects prerequisite relationships between jobs. You need to manage tasks possessing deadlines and specific dependencies, ensuring that all prerequisite subtasks finish before a dependent item becomes eligible for execution. The exercise tests graph traversal, priority queue management, and efficient scheduling algorithms. To view the complete challenge details and the comprehensive model solution, a subscription is required.
asked July 2026Scale.aiTask Scheduling to Minimize Overall Completion Deadline (with Dependencies and Heap Optimization)
3/5This Scale AI interview question explores optimal task scheduling under precedence constraints to minimize overall completion time. The problem tests advanced algorithmic thinking, priority queue optimization, and dependency graph traversal through incremental difficulty stages. The complete problem statement and production-grade solution can be accessed with a paid subscription.
asked July 2026Scale.aiTask Processor: Dependencies and Deadlines
3/5Designing efficient scheduling systems is a staple of backend engineering assessments, highlighted in this reported Scale AI interview question. You are tasked with creating a job manager that handles strict temporal deadlines, dynamic dependency tracking, and real-time schedule modifications. This problem examines your proficiency in utilizing advanced data structures like priority queues and dependency graphs to maintain optimal execution order. Reviewing the complete prompt and reference implementation demands an active subscription.
asked June 2026SWEMLEData StructureNeuron Firing Cellular Automata
3/5Explore this intriguing coding challenge involving cellular automata and neural firing patterns, frequently reported from interviews at Scale AI. This exercise evaluates your ability to simulate complex state transitions over discrete time steps while managing grid boundaries and efficient updates. You will need to design an algorithm that models biological or artificial activation rules cleanly and efficiently under strict constraints. To view the complete problem description, comprehensive test suites, and an optimized model solution, a subscription is required.
asked May 2026SWEGridSimulationExisting Codebase Debugging Round
3/5In this Scale AI technical evaluation, candidates face a realistic codebase debugging exercise designed to test practical software engineering skills. Instead of building from scratch, you must quickly orient yourself within an unfamiliar multi-file project, execute existing test suites, isolate subtle defects, and fix them under time constraints. This scenario assesses your code navigation abilities and troubleshooting methodology. The full problem and model solution require a subscription.
asked May 2026SWEMLEDebuggingParty Time Blocks
3/5This reported interview question from Scale AI challenges candidates to process and analyze temporal intervals grouped by geographical regions. Developers must compute overlapping active periods and identify empty gaps while handling timestamp parsing, precise formatting, and robust unit testing. This scenario evaluates practical software engineering skills regarding sorted data and structured validation. Access the complete problem description and expert model solution with a paid subscription.
asked March 2026IntervalsMedium DifficultySortingNumPy Top-p Sampling and Multi-Head Attention
3/5Implement foundational machine learning operations from scratch in this Scale AI interview question focusing on tensor manipulation and probabilistic sampling. Working within a notebook environment, you are expected to construct core architectural primitives and sampling strategies efficiently using numerical computing libraries. This problem assesses your fluency with vectorization, probability distributions, and fundamental transformer mechanics without relying on high-level framework abstractions. Discover the complete problem walkthrough and optimal solution by unlocking your subscription.
asked March 2026MLENumPySamplingDesigning GPT-2 Prompts Using Given Keywords
2/5Turn a handful of keywords into a prompt that steers a small language model to write coherently on that theme. This Scale AI question is a prompt-engineering exercise with a programming contract: the keywords must all appear, the result must read naturally, and the routine has to cope with up to ten of them. You will decide how to order keywords, how much scaffolding the prompt needs, and how to keep the output stable across inputs. A subscription unlocks the full problem and the model answer.
NLPPrompt EngineeringText Generation
Recent Scale AI interview experiences
Full loops shared by candidates, every round included.
Scale AI coding interview FAQ
- What coding questions does Scale AI ask?
- 14 reported coding questions, most often on Scale.ai, Medium Difficulty, SWE, MLE, Testing.
- How hard is the Scale AI coding interview?
- The reported coding questions average 3.0 out of 5: 1 at 2/5, 12 at 3/5, 1 at 4/5.
- Are these Scale AI coding questions recent?
- The most recent report is from July 2026, and 13 were reported within the last twelve months. Dates come from the interview reports themselves.