Zscaler Software Engineer Interview Questions
5+ Zscaler Software Engineer interview questions drawn from real candidate reports. Sources include 1Point3Acres, Blind, Glassdoor, Reddit, and LeetCode. Questions span every stage of the Zscaler Software Engineer loop: OA, phone screen, system design, behavioral, and onsite coding.
What to Expect in the Zscaler Software Engineer Interview
The Zscaler Software Engineer interview process typically runs 4 to 6 rounds depending on seniority level. Based on candidate reports in the LeakCode database, the loop usually includes a resume review, an online assessment or coding phone screen, one or more technical rounds, a system design round (for senior and above), and a behavioral or values round.
Difficulty skews toward medium and hard LeetCode-style problems in the coding rounds. System design questions test breadth (component selection, scaling, trade-off reasoning) more than deep implementation. Behavioral questions are tied to the company's stated values and principles.
Zscaler Software Engineer Questions (Sample)
Zscaler Senior Staff Engineer Interview Experience (2024)
I have recently given the ZScalar Sr Staff Engineer and it was really bad experience. They asked me DSA Hard leet code problem A transformation sequence from word beginWord to word endWord using a dic
#73 Set Matrix Zeroes
LeetCode #73: Set Matrix Zeroes. Difficulty: Medium. Topics: Array, Hash Table, Matrix. Asked at ZScaler in the last 6 months.
#146 LRU Cache
LeetCode #146: LRU Cache. Difficulty: Medium. Topics: Hash Table, Linked List, Design, Doubly-Linked List. Asked at ZScaler in the last 6 months.
#273 Integer to English Words
LeetCode #273: Integer to English Words. Difficulty: Hard. Topics: Math, String, Recursion. Asked at ZScaler in the last 6 months.
#131 Palindrome Partitioning
LeetCode #131: Palindrome Partitioning. Difficulty: Medium. Topics: String, Dynamic Programming, Backtracking. Asked at scaler in the last 6 months.
Difficulty Breakdown
3
medium
2
hard
Based on 5 questions with difficulty labels from candidate reports.
Interview Rounds
Here is how the Zscaler Software Engineer questions in the LeakCode database break down by interview round, based on what candidates reported:
| Round | Questions in Database |
|---|---|
| coding | 4 |
Most Common Topics
Question Recency
1
2025
Question counts by interview year, based on candidate-reported dates.
How to Prepare for the Zscaler Software Engineer Interview
Use the LeakCode question database as your primary research tool. Filter by role (Software Engineer), then by round type to focus your prep on the specific stages in your upcoming loop. Sort by recency to see what 2026 candidates actually faced.
- Start with questions from the last 12 months. Interview processes change and recent data is the strongest signal.
- Cross-reference questions that appear in multiple sources (1p3a, Blind, Glassdoor). Multi-source confirmation means a question has stronger recurrence probability.
- For system design rounds: focus on the question patterns, not individual questions. The same design principles recur across many prompts.
- For behavioral rounds: map your experiences to the company's stated values before the interview. Most behavioral questions at top companies are derivatives of a small set of core leadership competencies.
FAQ
How many Zscaler Software Engineer questions are in the database?
5+ questions from verified candidate reports. The count grows as new reports are scraped daily from 1Point3Acres, Blind, Glassdoor, Reddit, and LeetCode.
Are these questions from real Zscaler interviews?
Yes. All questions are sourced from actual candidate interview reports, not generated by AI. Each entry links back to its source URL where available, and questions are tagged with the year and round reported by the candidate.
How current is this data?
LeakCode updates daily. The database is filtered to exclude duplicate and low-quality entries. You can filter by interview year to focus on recent cycles.
Does LeakCode cover Zscaler OA questions specifically?
Yes. The database includes online assessment questions tagged with round type. See the Zscaler OA page for a dedicated view.
Related: Zscaler All Questions · Zscaler OA Questions · Browse All Companies · Data Sources