Snap interview questions

39 questions19 coding5 system design15 behavioral9 freeUpdated

This is every question in the Snap guide, in one list: 19 coding problems, 5 system designs and 15 behavioral questions, drawn from what candidates report about Snap interviews.

Each row shows the round it comes from and links to the lesson that works through it. 9 are free to read in full. The other 30 are Premium, and here you still see their round, difficulty and topic, so you know what you're walking into.

Snap coding interview questions

19 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.

1Longest Palindromic Substring: Expand Around CenterFreeMediumArrays & Strings
2Trapping Rain Water: Two-Pointer WalkFreeHardArrays & Strings
3Word Break: Boolean Prefix DPFreeMediumArrays & Strings
43Sum: Sort and Close InFreeMediumArrays & Strings
5Hottest Cluster: Max-Sum k-by-k SubmatrixFreeMediumArrays & Strings
6Merge IntervalsFreeMediumIntervals & Sorting
7Peak Live Windows: Meeting Rooms IIFreeMediumIntervals & Sorting
8Task SchedulerFreeMediumIntervals & Sorting
9Premium medium problemMediumDynamic Programming
10Premium medium problemMediumDynamic Programming
11Premium medium problemMediumDynamic Programming
12Premium medium problemMediumTrees & Graphs
13Premium medium problemMediumTrees & Graphs
14Premium hard problemHardTrees & Graphs
15Premium easy problemEasyTrees & Graphs
16Premium medium problemMediumLinked Lists & Design
17Premium easy problemEasyLinked Lists & Design
18Premium easy problemEasyLinked Lists & Design
19Premium medium problemMediumLinked Lists & Design

Snap 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 Ephemeral Messaging & StoriesFree
2Design Snap Map (Geospatial) (Premium)
3Design Ad Ranking & Delivery (Premium)
4Design the Discover / Spotlight Feed (Premium)
5Design a Notification System (Premium)

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

Snap 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.

Why Snap & product passion (3)

All 3 are Premium

Kind & collaboration (3)

All 3 are Premium

Smart & judgment (3)

All 3 are Premium

Creative & craft (3)

All 3 are Premium

Ownership & impact (3)

All 3 are Premium

Read the Snap behavioral questions

See all 39 Snap questions by name

Premium opens the 30 locked questions on this page, each with the full prompt and a worked answer, and every other lesson in all 100 company guides.

Common questions

How many questions are in the Snap interview guide?

39: 19 coding problems, 5 system designs and 15 behavioral questions. The guide was last updated in November 2026.

Which rounds do these Snap interview questions come from?

All 19 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 Snap interview questions are free?

9 of the 39 are free to read in full, marked Free in the list. The other 30 come with Premium, which also opens all 100 company guides.