American Express AI Engineer Interview Guide: Real Questions

Aletha Payawal
Written by Aletha Payawal
Aletha Payawal

Aletha is a content writer and marketer at Interview Query. With a degree in development studies, she loves crafting long-form content that captivates audiences across industries while being grounded in solid research and insights. When she’s not writing, you’ll find her immersed in literary fiction or curating her latest reads on her Bookstagram.

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Introduction

AI engineers remain integral to driving innovative solutions within the financial sector, especially with the AI for financial services market growing at a CAGR of 27.3% with a projected value of $123.2 billion by 2032. Since American Express stands at the forefront of this sector, it needs AI engineers to work on cutting-edge projects that involve processing vast amounts of transactional data, building predictive models, and deploying scalable AI systems that directly impact millions of customers worldwide. The interview process is designed to assess your technical expertise, problem-solving skills, and ability to align AI solutions with business goals.

In this guide, you’ll learn what to expect at each stage of the American Express AI Engineer interview, including technical coding challenges, machine learning case studies, and system design discussions. We’ll cover the most asked American Express interview questions, the skills you’ll need to demonstrate, and strategies to effectively showcase your ability to innovate within a highly data-driven environment. By understanding the company’s focus and aligning your preparation accordingly, you’ll be better equipped to navigate the interview process with confidence.

Interview Topics

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Data Structures & Algorithms
(40)
Machine Learning
(36)
A/B Testing
(10)
Statistics
(9)
AI & Agentic Systems
(1)

The American Express Interview Process

Landing an AI engineering role at American Express means navigating a multi-stage process designed to evaluate both deep technical expertise and real-world business impact. From foundational coding skills to scalable AI system design in a regulated fintech environment, each round builds on the last. Here’s what to expect, and how to stand out at every stage.

1

Recruiter Screen

The American Express AI Engineer interview process begins with a recruiter screen. This stage is designed to assess your overall alignment with the role, including your background in AI, technical expertise, and interest in the company. The recruiter will ask about your professional experience, education, and key projects related to AI. They will also gauge your understanding of the role and your motivation for joining American Express. Candidates who succeed in this stage clearly articulate their experiences and demonstrate a strong interest in AI applications within the financial sector.

Recruiter Screen
2

Technical Phone Screen

The technical phone screen evaluates your core technical skills relevant to AI engineering. You will be asked to solve coding problems, discuss algorithms, and explain the reasoning behind your solutions. The focus is on your ability to write clean, efficient code and apply AI concepts such as machine learning algorithms or data preprocessing techniques. Strong candidates showcase their technical proficiency and problem-solving abilities during this stage.

Technical Phone Screen
3

Online Assessment

The next stage involves an online assessment or test that measures your applied AI knowledge. You will work on tasks such as building models, analyzing datasets, or optimizing algorithms. This stage assesses your ability to apply theoretical knowledge to practical problems and your familiarity with tools like Python, TensorFlow, or PyTorch. Successful candidates demonstrate both technical accuracy and a clear understanding of AI methodologies.

Online Assessment
4

Onsite Interview Loop

The onsite interview loop includes multiple rounds with engineers and stakeholders. You will engage in coding exercises, system design discussions, and behavioral interviews. The technical rounds focus on deeper AI-specific challenges, such as designing scalable models or evaluating real-world use cases. Behavioral interviews examine your teamwork, problem-solving approach, and alignment with American Express’s values. Candidates who excel here combine technical expertise with strong communication and collaboration skills.

Onsite Interview Loop

Preparing strategically across algorithms, machine learning, system design, and behavioral storytelling in a real-world financial environment is what separates strong AI engineering candidates from standout hires. To accelerate your preparation, work through Interview Query’s AI Engineering 50 Study Plan and train on the exact skills top fintech companies like American Express expect.

Core Skills at American Express

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Featured Interview Question at American Express

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American Express AI Engineer Interview Questions

QuestionTopicDifficulty
Statistics
Easy

How would you explain what a p-value is to someone who is not technical?

Statistics
Medium
Machine Learning
Easy

97+ more questions with detailed answer frameworks inside the guide

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