HSBC Group System Engineer Interview Questions and Answers

Behavioural and culture fit

4 Programming questions
10 MCQ

Each programming question has its own time allocated.
10 mins for MCQ.

Q1. Bases on C++ multithreding
Ans. 
C++ multithreading allows for concurrent execution of multiple threads within a single program.
• Use mutexes to prevent race conditions and ensure thread safety

• Avoid deadlocks by carefully managing locks and avoiding nested locks

• Consider using condition variables to signal between threads

• Use thread pools to manage and reuse threads efficiently

• Be aware of potential performance issues and overhead with multithreading
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Q2. C++ pointers and smart pointers quetions
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Q1. C++ multithreading quetions
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Q2. Work life, achievemts.. scenario reuestions
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Q1. What are your salary expectations?
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Q2. Tell me about yourself.
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Arrays, linked list, DP

Q1. Virtual Interview
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Q1. Scenario-based questions.
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Q1. Print all the permutations of a string both iterative and recursive way.
Ans. 
Print all permutations of a string iteratively and recursively.
• Iterative approach: Use a stack to keep track of characters and their positions. Swap characters to generate permutations.

• Recursive approach: Use backtracking to generate all possible permutations by swapping characters.

• Example: Input 'abc', output ['abc', 'bac', 'cab', 'acb', 'bca', 'cba']
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DFS questions, and Python coding challenge

Q1. Python technical questions
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2 coding DSA questions

Q1. Python basics.. what are generators, decorators, lambda
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DSA topics were asked

Q1. If you had to explain a difficult topic to someone how would you explain it?
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Q2. Describe a situation when you had to explain something to someone who was not understanding a concept related to a topic. Explain how you overcame the issue .
Ans. 
I explained a complex algorithm to a non-technical team member.
• Broke down the concept into simpler terms

• Used analogies or real-life examples to clarify

• Encouraged questions and feedback

• Offered additional resources for further understanding
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