Citizens Bank Senior Architect Interview Questions and Answers

DSA questions lettcode easy and medium

Q1. Rotate and image by 90 degree
Ans. 
To rotate an image by 90 degrees, transpose the image matrix and then reverse each row.
• Transpose the image matrix by swapping elements across the diagonal

• Reverse each row of the transposed matrix
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Q2. Print cousin nodes
Ans. 
Print cousin nodes in a tree structure
• Traverse the tree to find the parent node of the given node

• Find all the children of the parent node except the given node

• Print the names of the cousin nodes
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Q1. Design google drive
Ans. 
Design a cloud storage service like Google Drive
• Implement user-friendly interface for uploading, organizing, and sharing files

• Provide seamless integration with other Google services like Gmail and Google Docs

• Ensure robust security measures to protect user data

• Offer scalable storage options for individuals and businesses

• Enable offline access and synchronization across devices
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Q2. Follow up questions on LLD/HLD
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Q1. Past project related questions
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Q2. Mostly checking the fitment
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Q1. Data structure interview questions
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Q2. Queue , Stack questions asked
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Hacker rank test with 2 questions to solve

Q1. Just technical round, you should know basic in your language
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Online test for 1 hr

Tree implementation : search, add

Q1. Design pattern used
Ans. 
The design pattern used is the Singleton pattern.
• Ensures a class has only one instance and provides a global point of access to it

• Commonly used in scenarios where only one instance of a class is needed, such as database connections or logging

• Implemented by creating a static method to return the same instance of the class each time it is called
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Q2. Design project and classes
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Q1. Current project
Ans. 
Currently leading a cross-functional team in developing a new product launch strategy.
• Leading a cross-functional team

• Developing a new product launch strategy

• Ensuring alignment with company goals and objectives
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Q2. Discussion on prod
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Q1. Why are you looking for change
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Q2. What does ur day look like
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Q3. What is your qualifications
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Q4. What do you know about the company
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Q5. What us your salary expectations
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Q1. How will you add value to the firm
Ans. 
I will add value to the firm by leveraging my experience and skills to drive growth and innovation.
• I will bring a fresh perspective and new ideas to the table

• I will use my leadership skills to motivate and inspire my team to achieve their goals

• I will focus on building strong relationships with clients and stakeholders to drive business growth

• I will continuously seek out opportunities for process improvement and cost sa...read more
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Q2. What else you have contributed at your current work place
Ans. 
I have contributed to the development of new training programs and mentored junior staff.
• Developed and implemented new training programs for employees

• Mentored and trained junior staff to improve their skills and performance

• Introduced new processes and procedures to increase efficiency

• Collaborated with cross-functional teams to achieve project goals

• Contributed to the development of company culture and values
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Tree, DS , maps , hashing, indexing, memory optimizing,

Q1. Live coding for 2 hrs , focusing on optimization and clean code
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Q2. Hashing , different type of maps , java 17 architecture
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