Union Bank of India Senior Software Engineer Interview Questions and Answers for Experienced

Duration : 1 hours
Question type : Greedy algo question(DSA)
Platform : of any choice

Q1. LLDs Designing on any system
Ans. 
LLDs are detailed design documents that describe the software architecture of a system.
• LLDs typically include detailed information on modules, components, interfaces, and data for a system.

• They help in understanding how different parts of the system interact and communicate with each other.

• Examples of LLDs include class diagrams, sequence diagrams, and data flow diagrams.

• LLDs are crucial for developers to implement the
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Q1. Coding plus behavioral plus LLD
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Q1. Design patterns that you have followed in your past projects.
Ans. 
I have followed the MVC, Singleton, and Factory design patterns in my past projects.
• MVC pattern for separating concerns and improving maintainability

• Singleton pattern for ensuring only one instance of a class is created

• Factory pattern for creating objects without exposing the instantiation logic
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Q2. How to secure the applications?
Ans. 
Applications can be secured by implementing various security measures such as authentication, authorization, encryption, and regular updates.
• Implement strong authentication mechanisms such as multi-factor authentication

• Use authorization to restrict access to sensitive data and functionalities

• Encrypt sensitive data both in transit and at rest

• Regularly update the application and its dependencies to patch security vulnera...read more
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Q1. Hardware issues
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Q2. Networking issues
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Q1. Self introduction
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Q2. How do expect for your salary
Ans. 
I am looking for a competitive salary that reflects my experience and skills in the industry.
• Research industry standards for System Engineers in the specific location

• Consider years of experience and level of expertise

• Factor in benefits and perks offered by the company

• Be prepared to negotiate based on the overall compensation package
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Behavioural and culture fit

Q1. LRU cache design
Ans. 
LRU cache design involves maintaining a cache with limited capacity and removing the least recently used item when the cache is full.
• Use a doubly linked list to maintain the order of items based on their usage.

• Implement a hash map for fast access to items in the cache.

• When a new item is accessed, move it to the front of the linked list to mark it as the most recently used.

• When the cache is full, remove the item at the ...read more
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Q2. Current project
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1)Buy and sell stock
2)2 sum
3) system design
4) Elastic search
5) deployment