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American Express

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American Express Senior Java Developer Interview Questions and Answers

Updated 1 Aug 2022

American Express Senior Java Developer Interview Experiences

1 interview found

Senior Java Developer Interview Questions & Answers

user image Aditya Katiyar

posted on 1 Aug 2022

I applied via Referral and was interviewed in Jul 2022. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. 1. Eager , Lazy Singleton Design Pattern. 2. Java 8 Stream , Functions (Predicate , Supplier , Consumer ) , Comparator Chaining 3. Designing Pattern -> Count Like / Seen any Post of Instagram , Reduce N/W...
    • Add your answer

Interview Preparation Tips

Interview preparation tips for other job seekers - Average Question , Stick to the Basic Concepts .

Please confirm with HR if they are really interested to hire candidate , In my case i felt they were not really interested to hire .

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Disappointing Interview Experience with D.E. Shaw
I recently interviewed with D.E. Shaw, and it turned out to be one of the most draining experiences I’ve had. The interviewer’s approach felt unnecessarily harsh and dismissive, which made the entire process uncomfortable. At multiple points, the interviewer asked me to drop off the call, even when I tried asking basic questions about the designation, job description, and other details. After the interview, I found myself sitting there for a few minutes, trying to process what just happened. It left me questioning the overall tone and professionalism of the interview. Definitely not the experience I was expecting from such a well-known firm.
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Interview questions from similar companies

Senior Java Developer Interview Questions & Answers

BNP Paribas user image Anonymous

posted on 6 Nov 2024

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
-
Result
No response

I was interviewed in Oct 2024.

Round 1 - Technical 

(4 Questions)

  • Q1. Spring cloud gateway
    • Add your answer
  • Q2. JWT Token structure and details
    • Add your answer
  • Q3. Java 11 features
    • Add your answer
  • Q4. Stream related problems
    • Add your answer

Senior Java Developer Interview Questions & Answers

Fidelity Investments user image Anonymous

posted on 22 Oct 2024

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. How is transaction managed in microservices architecture?
  • Ans. 

    Transactions in microservices are managed using distributed transactions or compensating transactions.

    • Distributed transactions involve multiple microservices coordinating with a transaction manager to ensure data consistency across services.

    • Compensating transactions involve each microservice having a compensating action to rollback changes if a transaction fails.

    • Saga pattern is commonly used in microservices to manage ...

    • Answered by AI
    Add your answer
  • Q2. Questions about java garbage collection
    • Add your answer

Skills evaluated in this interview

Senior Java Developer Interview Questions & Answers

Morgan Stanley user image Anonymous

posted on 25 Apr 2024

Interview experience
1
Bad
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

Hackerrank - Hackerrank test including multiple choice and 2 programming questions

Round 2 - Technical 

(1 Question)

  • Q1. Garbage collector internal implementation algorithm
  • Ans. 

    Garbage collector is an automatic memory management system in Java that reclaims memory by deallocating objects no longer in use.

    • Garbage collector uses different algorithms like Mark-Sweep, Mark-Compact, and Copying to reclaim memory.

    • Mark-Sweep algorithm marks objects as reachable or unreachable, then sweeps through and deletes the unreachable objects.

    • Mark-Compact algorithm moves reachable objects to one end of the mem...

    • Answered by AI
    Add your answer

Senior Java Developer Interview Questions & Answers

Citicorp user image Manoj Cheulwar

posted on 28 Feb 2024

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed before Feb 2023. There was 1 interview round.

Round 1 - Technical 

(5 Questions)

  • Q1. Java oops concepts , Java memory model , Java, lambda expressions example
    • Add your answer
  • Q2. What are the oops concepts
  • Ans. 

    Object-oriented programming concepts that help in organizing and designing code for reusability and maintainability.

    • Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

    • Inheritance: Allowing a class to inherit properties and behavior from another class.

    • Polymorphism: Ability of objects to take on multiple forms or types.

    • Abstraction: Hiding the implementation details and showing on

    • Answered by AI
    Add your answer
  • Q3. What is stream api
  • Ans. 

    Stream API is a feature in Java that allows processing collections of objects in a functional style.

    • Stream API provides a way to perform operations on collections like filter, map, reduce, etc.

    • It supports functional programming paradigms like lambda expressions.

    • Example: List names = Arrays.asList("Alice", "Bob", "Charlie"); Stream stream = names.stream();

Answered by AI
Add your answer
  • Q4. What is lambda expressions
  • Ans. 

    Lambda expressions are anonymous functions that allow you to pass behavior as an argument to a method.

    • Lambda expressions are used to provide a concise way to represent behavior as data.

    • They are commonly used in functional programming and can be used to implement functional interfaces.

    • Lambda expressions can be used to iterate through collections using the forEach method.

    • Answered by AI
    Add your answer
  • Q5. What Java memory model
  • Ans. 

    The Java memory model defines how threads interact through memory when accessing shared data.

    • Defines the rules for reading and writing to shared variables in a multithreaded environment

    • Ensures visibility of changes made by one thread to other threads

    • Specifies the order in which operations are executed and how they are synchronized

    • Answered by AI
    Add your answer

    Interview Preparation Tips

    Interview preparation tips for other job seekers - Prepare core Java and oops concepts

    Skills evaluated in this interview

    Senior Java Developer Interview Questions & Answers

    JPMorgan Chase & Co. user image Anonymous

    posted on 27 Mar 2024

    Interview experience
    4
    Good
    Difficulty level
    Moderate
    Process Duration
    Less than 2 weeks
    Result
    Selected Selected

    I applied via Recruitment Consulltant and was interviewed before Mar 2023. There were 4 interview rounds.

    Round 1 - Coding Test 

    There is coding test consists of Easy / Medium DSA Question on Array/String/Hashing

    Round 2 - Technical 

    (1 Question)

    • Q1. Java 8 Feature, Immutable, OOPS, Hashmap Internal, Exception Handling, Multthreading lots of Qs asked( Synchonization , Lock ), Collection Framework, Singleton DP.
      • Add your answer
    Round 3 - Technical 

    (1 Question)

    • Q1. Project Discussion, Spring Boot Microservice related FAQ, @Transactional, Qualifier, JPA related Question, Design APIs for a given Use Case & Apply Authentication & Authorization, SOLID Design Principles
      • Add your answer
    Round 4 - Behavioral 

    (1 Question)

    • Q1. Explain Latest Project Architechture, asked Cross Question why RDBMS database , why not NoSQL DB used, How OAuth works/ how API Security implemented in your project, Explain any recent Prod Issue you have ...
      • Add your answer

    Interview Preparation Tips

    Interview preparation tips for other job seekers - Focus on : Java 8+ Feature, Multithreading, Collection & Spring Boot

    Software Developer Interview Questions & Answers

    UBS user image Anonymous

    posted on 26 Dec 2024

    Interview experience
    5
    Excellent
    Difficulty level
    Easy
    Process Duration
    2-4 weeks
    Result
    No response

    I applied via Company Website and was interviewed in Nov 2024. There were 2 interview rounds.

    Round 1 - Technical 

    (1 Question)

    • Q1. Project Architecture
      • Add your answer
    Round 2 - Technical 

    (1 Question)

    • Q1. Informatica tech questions
      • Add your answer

    Software Developer Interview Questions & Answers

    HSBC Group user image Anonymous

    posted on 16 Oct 2024

    Interview experience
    5
    Excellent
    Difficulty level
    -
    Process Duration
    -
    Result
    -
    Round 1 - Aptitude Test 

    MCQ test consisting of 70 mcqs in 75 minutes from aptitude english and cs fundamentals. If cleared next paper 2 coding qs medium level

    Round 2 - Technical 

    (2 Questions)

    • Q1. Two sum leetcode problem
      • Add your answer
    • Q2. What problems you faced in your project
    • Ans. 

      I faced challenges with integrating third-party APIs and debugging complex logic.

      • Difficulty in understanding and implementing third-party APIs

      • Issues with data synchronization between different systems

      • Troubleshooting complex logic errors

      • Managing dependencies and version conflicts

      • Time constraints affecting problem-solving

      • Answered by AI
      Add your answer

    Software Developer Interview Questions & Answers

    State Street Corporation user image Anonymous

    posted on 1 Oct 2024

    Interview experience
    5
    Excellent
    Difficulty level
    -
    Process Duration
    -
    Result
    -

    I applied via Campus Placement

    Round 1 - Coding Test 

    DP graphs strings it was good

    Round 2 - Technical 

    (2 Questions)

    • Q1. Reverse a linkded list
    • Ans. 

      Reverse a linked list by changing the direction of pointers

      • Start with three pointers: current, previous, and next

      • Iterate through the list, updating pointers to reverse the direction

      • Return the new head of the reversed list

      • Answered by AI
      Add your answer
    • Q2. Print fibonacci series
    • Ans. 

      The Fibonacci series is a sequence of numbers where each number is the sum of the two preceding ones.

      • Start with two variables initialized to 0 and 1

      • Loop through desired number of iterations, adding the previous two numbers to get the next number

      • Print or store each number in the series

      • Answered by AI
      Add your answer

    Skills evaluated in this interview

    Software Developer Interview Questions & Answers

    FactSet user image Anonymous

    posted on 18 Aug 2024

    Interview experience
    5
    Excellent
    Difficulty level
    -
    Process Duration
    -
    Result
    -
    Round 1 - HR 

    (2 Questions)

    • Q1. Why do you want to switch
    • Ans. 

      I want to switch to explore new technologies and challenges in a different industry.

      • Interested in learning new skills and technologies

      • Seeking new challenges and opportunities for growth

      • Want to explore different industry perspectives

      • Answered by AI
      Add your answer
    • Q2. Salry expectations
      • Add your answer
    Round 2 - Technical 

    (2 Questions)

    • Q1. Question on oop concepts
      • Add your answer
    • Q2. Coding questions
      • Add your answer
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    American Express Interview FAQs

    How many rounds are there in American Express Senior Java Developer interview?
    American Express interview process usually has 1 rounds. The most common rounds in the American Express interview process are Technical.
    How to prepare for American Express Senior Java Developer interview?
    Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at American Express. The most common topics and skills that interviewers at American Express expect are Coding, Finance, HTML, JSON and Maven.

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