Qualcomm interview questions

49 questions31 coding3 system design15 behavioral5 freeUpdated

This is every question in the Qualcomm guide, in one list: 31 coding problems, 3 system designs and 15 behavioral questions, drawn from what candidates report about Qualcomm interviews.

Each row shows the round it comes from and links to the lesson that works through it. 5 are free to read in full. The other 44 are Premium, and here you still see their round, difficulty and topic, so you know what you're walking into.

Qualcomm coding interview questions

31 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.

1Reverse a Linked List in Groups of kFreeCodingMediumLinked Lists & Bits
2Find the Non-Repeating Element with XORFreeCodingEasyLinked Lists & Bits
3Product of Array Except SelfFreeCodingMediumLinked Lists & Bits
4Repeated and Missing NumberFreeCodingEasyLinked Lists & Bits
5Premium easy problemCodingEasyBit Tricks in C
6Premium easy problemCodingEasyBit Tricks in C
7Premium easy problemCodingEasyBit Tricks in C
8Premium easy problemCodingEasyBit Tricks in C
9Premium easy problemCodingEasyBit Tricks in C
10Premium easy problemCodingEasyBit Tricks in C
11Premium medium problemCodingMediumMemory, Caches & Queues
12Premium medium problemCodingMediumMemory, Caches & Queues
13Premium medium problemCodingMediumMemory, Caches & Queues
14Premium medium problemCodingMediumMemory, Caches & Queues
15Premium medium problemCodingMediumThe Core Coding Round
16Premium easy problemCodingEasyThe Core Coding Round
17Premium medium problemCodingMediumThe Core Coding Round
18Premium hard problemCodingHardThe Core Coding Round
19Premium medium problemCodingMediumThe Core Coding Round
20Premium medium problemCodingMediumLinked List Surgery
21Premium easy problemCodingEasyLinked List Surgery
22Premium medium problemCodingMediumLinked List Surgery
23Premium medium problemCodingMediumLinked List Surgery
24Premium easy problemCodingEasyLinked List Surgery
25Premium medium problemCodingMediumArrays & Strings
26Premium medium problemCodingMediumArrays & Strings
27Premium easy problemCodingEasyArrays & Strings
28Premium medium problemCodingMediumArrays & Strings
29Premium easy problemCodingEasyArrays & Strings
30Premium medium problemSystem designMediumDesign a Memory Leak Analyzer
31Premium medium problemSystem designMediumDesign Thread-Safe Primitives

Qualcomm system design interview questions

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

#Question
1Design a Low-Level SystemFree
2Design a Memory Leak Analyzer (Premium)
3Design Thread-Safe Primitives (Premium)

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

Qualcomm 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 Qualcomm, and meaning it (3)

All 3 are Premium

Your project, in real depth (3)

All 3 are Premium

Ownership and impact (3)

All 3 are Premium

Collaboration across hardware and software (3)

All 3 are Premium

Ambiguity, and thinking out loud (3)

All 3 are Premium

Read the Qualcomm behavioral questions

See all 49 Qualcomm questions by name

Premium opens the 44 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 Qualcomm interview guide?

49: 31 coding problems, 3 system designs and 15 behavioral questions. The guide was last updated in November 2026.

Which rounds do these Qualcomm interview questions come from?

Of the 31 coding problems, 29 come from the coding rounds and 2 from the system design lessons. The 3 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 Qualcomm interview questions are free?

5 of the 49 are free to read in full, marked Free in the list. The other 44 come with Premium, which also opens all 100 company guides.