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ServiceNow interview questions

41 questions21 coding5 system design15 behavioral7 freeUpdated

This is every question in the ServiceNow guide, in one list: 21 coding problems, 5 system designs and 15 behavioral questions, drawn from what candidates report about ServiceNow interviews.

Each row shows the round it comes from and links to the lesson that works through it. 7 are free to read in full. The other 34 are Premium, and here you still see their round, difficulty and topic, so you know what you're walking into.

Open the ServiceNow guide Unlock all 41

ServiceNow coding interview questions

21 problems, in the order the guide teaches them. Each lesson gives the full problem, a worked solution and the follow-ups interviewers tend to add.

1Build the Record Engine: Design HashMapFreeEasyArrays, Strings & Hashing
2Bucket Records by Signature: Group AnagramsFreeMediumArrays, Strings & Hashing
3Runs That Hit a Target: Subarray Sum Equals KFreeMediumArrays, Strings & Hashing
4Closest Common Owner: Lowest Common Ancestor of a Binary TreeFreeMediumTrees, Graphs & Recursion
5Connected Record Clusters: Number of IslandsFreeMediumTrees, Graphs & Recursion
6Escalation Tiers in Order: Binary Tree Level Order TraversalFreeMediumTrees, Graphs & Recursion
7Premium medium problemMediumDP, Stacks & Linked Lists
8Premium medium problemMediumDP, Stacks & Linked Lists
9Premium easy problemEasyDP, Stacks & Linked Lists
10Premium medium problemMediumSliding Windows & Intervals
11Premium medium problemMediumSliding Windows & Intervals
12Premium hard problemHardSliding Windows & Intervals
13Premium hard problemHardBacktracking & Search
14Premium medium problemMediumBacktracking & Search
15Premium hard problemHardBacktracking & Search
16Premium medium problemMediumJavaScript & Polyfills
17Premium medium problemMediumJavaScript & Polyfills
18Premium medium problemMediumJavaScript & Polyfills
19Premium medium problemMediumJava, OOP & DB Fundamentals
20Premium medium problemMediumJava, OOP & DB Fundamentals
21Premium medium problemMediumJava, OOP & DB Fundamentals

ServiceNow system design interview questions

5 designs, each worked end to end in its own lesson, from requirements to the architecture and its trade-offs.

#Question
1Design Incident ManagementFree
2Design a Workflow Engine (Premium)
3Design the Multi-Instance Platform (Premium)
4Design Notification & Orchestration (Premium)
5Schema-First HLD Playbook (Premium)

A lock means the design is named here and its walkthrough is Premium.

ServiceNow behavioral interview questions

15 questions, grouped by what the interviewer is testing. The lesson explains why each one gets asked and what a strong answer covers.

Wow our Customers (3)

All 3 are Premium

Win as a Team (3)

All 3 are Premium

Create Belonging (3)

All 3 are Premium

Stay Hungry and Humble (3)

All 3 are Premium

Ownership & craft (3)

All 3 are Premium

Read the ServiceNow behavioral questions

See all 41 ServiceNow questions by name

Premium opens the 34 locked questions on this page, each with the full prompt and a worked answer, and every other lesson in all 100 company guides.

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Common questions

How many questions are in the ServiceNow interview guide?

41: 21 coding problems, 5 system designs and 15 behavioral questions. The guide was last updated in November 2026.

Which rounds do these ServiceNow interview questions come from?

All 21 coding problems come from the coding rounds. The 5 system designs and 15 behavioral questions come from the system design and behavioral rounds. Every row in the list carries its round, so you can start with the one you have booked.

Which ServiceNow interview questions are free?

7 of the 41 are free to read in full, marked Free in the list. The other 34 come with Premium, which also opens all 100 company guides.