Pure Storage has used HackerRank screens with two coding problems and multiple-choice questions for software engineering roles. One recent graduate described the same mixed format. Timing and difficulty can vary by team and cycle. Storage-focused roles may place more emphasis on concurrency, systems, and data-structure design after the OA.

When to Expect the OA for Your Role

Internship and graduate roles typically begin with an application review and move on to a technical interview. More experienced applicants may have an initial conversation with a recruiter. Confirm whether your invitation contains only coding questions or combines multiple coding sections with multiple-choice sections. Check the test page for the deadline, allowed languages, and test instructions.

Does Your Online Assessment Matter?

Candidates must pass the screen to advance. Coding questions are evaluated with test cases. Multiple-choice sections may cover language behavior, data structures, or concurrency. Pure Storage does not publish a universal cutoff. Submit a correct baseline, check the constraints, and test edge cases before optimizing.

Compiled List of Pure Storage OA Question Types

The highest-value practice covers binary search, geometry, randomized structures, string matching, and dynamic programming.

1. Cutting Ribbons — binary search over a feasible answer.
2. Valid Square — distance invariants and geometric edge cases.
3. Palindromic Substrings — center expansion or dynamic programming.
4. Insert Delete GetRandom O(1) — array and map synchronization.
5. Design Skiplist — probabilistic layers with linked updates.
6. Maximum Repeating Substring — repeated-pattern matching.
7. Longest Palindromic Substring — two-pointer expansion and boundaries.
8. Binary Search — invariant-driven search over sorted data.
9. Detect Squares — point frequencies and geometric counting.

Pure Storage Interview Questions

Recently asked in real interviews

These questions were asked recently in real Pure Storage interviews. Practice these and 4,000+ other questions from 1,000+ companies on Lodely.

Data Scrubbing

coding Medium

Garbage Collection for Log-Structured Storage

coding Hard

Pure Storage Coding: Implement RAID 5

coding Hard

Deduplication Engine

coding Medium

Erasure Coding (Reed-Solomon)

coding Hard

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How to Prepare and Pass the Pure Storage Online Assessment

Use a 2-week plan. In week one, review arrays, hash tables, queues, binary search, trees, and intervals. In week two, complete 3 timed sets of 2 coding questions each. If your invitation includes multiple-choice questions, add short reviews of pointers, memory, threads, locks, and race conditions. Add a 15-minute practice block for explaining complexity and concurrency risks.

Lodely lets you add Pure Storage coding questions to the mock assessments and review editorials afterward. It also provides system design and behavioral practice for the stages after the screen.

Pure Storage Interview Question Breakdown

Cutting Ribbons

Type: Binary search on the answer. Prompt: Find the largest equal size that produces the target number. The Trick: The feasibility function is monotonic, but zero-size and overflow edge cases require careful handling. What It Tests: Search-space modeling and safe arithmetic.

Insert Delete GetRandom O(1)

Type: data-structure design. Prompt: Support insertion, deletion, and random selection in expected O(1) time. Approach: Move the final array element into the removed element's position, then update its mapping. This tests representation choices and update invariants.

Valid Square

Type: Geometry and hashing. Prompt: Determine whether four points form a square. The Trick: Rotation prevents axis-aligned comparisons, so all six squared distances must have the correct multiplicities and nonzero sides. What It Tests: Converting geometry into discrete checks that avoid floating-point calculations.

What Comes After the Online Assessment

Candidates who advance may face interviews on data structures, concurrency, systems, and behavioral topics. Review synchronization basics and practice explaining invariants. Be ready to defend why each data structure remains correct across updates and edge cases.

Conclusion

Combine timed coding with data-structure and concurrency review. Use Lodely's daily Pure Storage questions to maintain company-specific practice until the interview day.