HSBC Global Banking and Markets Senior Software Engineer Interview Questions and Answers for Experienced

Q1. Write a program to check numer is palindrom or not.
Ans. 
Program to check if a number is a palindrome or not.
• Convert the number to a string to easily check for palindrome

• Reverse the string and compare it with the original string

• If they are the same, the number is a palindrome
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Q2. What is the functionality of Lambda Expression in Java.
Ans. 
Lambda expressions in Java are used to provide a concise way to represent anonymous functions.
• Lambda expressions are used to define inline implementation of a functional interface.

• They enable you to pass functionality as an argument to a method.

• Lambda expressions are made up of parameters, an arrow, and a body.

• Example: (a, b) -> a + b
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Q3. How to call default method of interface if class implemented multiple interfaces.
Ans. 
To call a default method of an interface when a class implements multiple interfaces, use the interface name followed by the method name.
• Use InterfaceName.super.methodName() to call the default method of a specific interface.

• If a class implements multiple interfaces with default methods of the same name, you must specify the interface name to call the desired method.

• Example: Interface1.super.defaultMethod() to call the
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Q1. Scenario based Pega technical questions.
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Q2. According to your work experience I had tackled them
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Q1. Scenario based questions with hardness level increased. Normally Manager takes it.
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Q1. Salary discussions
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It was easy and basic questions asked

Q1. - DSA questions (leetcode easy) - Javascript concepts
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Q1. With India Panel -LLD was asked
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Q1. WIth UK Panel Design round 1 - Threading concepts - Async Programming - 1 Design Question
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Q1. With Director Design round 2 - Questions on code quality - 1 design question - Behavioral questions
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3 coding questions on hacekrank platform

Q1. Internal working of hashmap
Ans. 
HashMap is a data structure that stores key-value pairs and uses hashing to efficiently retrieve values.
• HashMap internally uses an array of linked lists to store key-value pairs.

• When a key-value pair is added, the key is hashed to determine the index in the array where it will be stored.

• If multiple keys hash to the same index, a linked list is used to handle collisions.

• HashMap uses the hashCode() method of keys to calc...read more
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Q2. Springbbot, Microservices questions
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Q1. Project related
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Q2. System design questions
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Q1. General HR Discussion
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Q2. Why you want join the company
Ans. 
I want to join the company because of its innovative projects and strong reputation in the industry.
• Impressed by the company's track record of successful projects

• Excited about the opportunity to work on cutting-edge technologies

• Looking forward to collaborating with talented team members
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Q1. C# OOPS Concepts, SQL query questions. It was very basic and easy questions.
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Q1. Very detailed questions about design patterns, security and architect level questions. This depends on experience level.
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Q1. Very interactive questions. Based on experience they will ask about team management, Agile methodology.
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