Top 23
Prep plan
Updated weekly · Last refresh Oct 17

Milestone Software Engineer Interview Questions

The questions to prepare for a Milestone Software Engineer interview. Questions from real interview reports rank first. Updated daily.

23questions
~5htotal time
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1
CodingStart here. 7 questions · ~82 min
Unique Triplets Sum to TargetMedium
Practice

Find all unique array triplets matching a target sum using sorting and two pointers.

ArraysSortingTwo PointersMilestone
Validate Binary Search TreeEasy
Practice

Problem At Dropbox, a service stores ordered values in a binary tree and needs to verify that the structure satisfies binary search tree rules. Given the r...

RecursionSearchingTreesMilestone
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2
Execution4 questions · ~47 min
Azure and On-Prem Directory ScenarioMedium

Evaluates your ability to reason through hybrid identity and Azure service design.

Milestone
Design a Rate-Limited REST APIHard

Tests system design skills for high-traffic APIs, including caching and rate limiting strategies.

APIscachingrate limitingMilestone
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3
Technical Fundamentals4 questions · ~47 min
Threads, Processes, and RacesHard

Tests concurrency fundamentals and ability to design safe synchronization strategies.

concurrencyrace conditionsMilestone
Garbage Collection and LeaksMedium

Tests understanding of runtime memory management and practical leak prevention techniques.

memory managementjavaMilestone
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4
Behavioral & Leadership6 questions · ~71 min
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5
More topics2 questions · ~24 min
Deploy a Microservice on AzureMedium

Tests practical deployment knowledge and tradeoffs among Azure compute and hosting options.

InfrastructuredeploymentMilestone
Second-Highest Salary SQLMedium

Tests SQL windowing or subquery skills and normalization knowledge for clean schema design.

SubqueriesRankingnormalizationMilestone
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
The finish line: interview-readyComplete all 23 questions plus 3 hands-on drills to finish this plan.