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American Express interview questions

48 questions30 coding3 system design15 behavioral5 freeUpdated

This is every question in the American Express guide, in one list: 30 coding problems, 3 system designs and 15 behavioral questions, drawn from what candidates report about American Express 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 43 are Premium, and here you still see their round, difficulty and topic, so you know what you're walking into.

Open the American Express guide Unlock all 48

American Express coding interview questions

30 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.

1Group Students by SchoolFreeCodingMediumMachine Coding & Java
2Thread-Safe Counter StoreFreeCodingEasyMachine Coding & Java
3Pizza Order: Lowest Final BillFreeCodingMediumMachine Coding & Java
4Premium medium problemCodingMediumThe Core Coding Round
5Premium medium problemCodingMediumThe Core Coding Round
6Premium medium problemCodingMediumThe Core Coding Round
7Premium medium problemCodingMediumThe Core Coding Round
8Premium medium problemCodingMediumSums and Largest Values
9Premium easy problemCodingEasySums and Largest Values
10Premium medium problemCodingMediumSums and Largest Values
11Premium easy problemCodingEasySums and Largest Values
12Premium medium problemCodingMediumSums and Largest Values
13Premium easy problemCodingEasyStrings and Palindromes
14Premium medium problemCodingMediumStrings and Palindromes
15Premium medium problemCodingMediumStrings and Palindromes
16Premium easy problemCodingEasyTrees, Lists and Chains
17Premium medium problemCodingMediumTrees, Lists and Chains
18Premium easy problemCodingEasyTrees, Lists and Chains
19Premium medium problemCodingMediumTrees, Lists and Chains
20Premium medium problemCodingMediumGrid and Board Problems
21Premium medium problemCodingMediumGrid and Board Problems
22Premium hard problemCodingHardGrid and Board Problems
23Premium hard problemCodingHardGrid and Board Problems
24Premium medium problemCodingMediumGrid and Board Problems
25Premium medium problemCodingMediumSplitting and Merging Arrays
26Premium hard problemCodingHardSplitting and Merging Arrays
27Premium medium problemCodingMediumSplitting and Merging Arrays
28Idempotent double-entry ledger: post, decline, replayFreeSystem designMediumDesign a Payments System
29Premium medium problemSystem designMediumDesign a Parking Lot
30Premium medium problemSystem designMediumDesign a Payment Gateway

American Express 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 Payments SystemFree
2Design a Parking Lot (Premium)
3Design a Payment Gateway (Premium)

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

American Express 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 Amex, and backing the customer (3)

All 3 are Premium

Ownership and impact (3)

All 3 are Premium

Collaboration across large, regulated teams (3)

All 3 are Premium

Working with legacy and scale (3)

All 3 are Premium

Ambiguity and unclear requirements (3)

All 3 are Premium

Read the American Express behavioral questions

See all 48 American Express questions by name

Premium opens the 43 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 American Express interview guide?

48: 30 coding problems, 3 system designs and 15 behavioral questions. The guide was last updated in November 2026.

Which rounds do these American Express interview questions come from?

Of the 30 coding problems, 27 come from the coding rounds and 3 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 American Express interview questions are free?

5 of the 48 are free to read in full, marked Free in the list. The other 43 come with Premium, which also opens all 100 company guides.