Wells Fargo Software Engineering Senior Analyst Interview Questions and Answers

Aptitude was very basic.

Q1. What is constant?
Ans. 
A constant is a value that does not change during the execution of a program.
• Constants are used to store values that remain the same throughout the program.

• They are declared using the 'const' keyword in many programming languages.

• Examples include mathematical constants like pi (3.14159) or physical constants like the speed of light (299,792,458 m/s).
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Q2. What is object oriented programming?
Ans. 
Object oriented programming is a programming paradigm based on the concept of objects, which can contain data and code.
• Objects are instances of classes, which define the structure and behavior of the objects.

• Encapsulation, inheritance, and polymorphism are key principles of object oriented programming.

• Example: Inheritance allows a subclass to inherit attributes and methods from a superclass.
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Q1. Salary Negotiation
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Q2. Work culture description
Ans. 
Our work culture is collaborative, innovative, and focused on continuous learning and growth.
• Encourages teamwork and open communication

• Emphasizes creativity and problem-solving

• Provides opportunities for professional development

• Values diversity and inclusion

• Promotes a healthy work-life balance
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Q1. Basic java questions and 2 DSA medium level problems
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Q2. Two sum leet code problem
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Q1. Design round. Design a system that send notification’s to all the passengers of trains just when the train arrives at the station next to it. And one question on tree LCA
Ans. 
Design a system to send notifications to train passengers when the train arrives at the next station.
• Use GPS tracking to determine train location in real-time

• Implement a notification system that sends alerts to passengers' devices

• Integrate with train schedule data to know when the train is approaching the next station
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Q1. Wht is tuple and how it is dif from list
Ans. 
A tuple is an immutable collection of elements, while a list is a mutable collection in Python.
• Tuples are created using parentheses (), while lists are created using square brackets []

• Tuples are immutable, meaning their elements cannot be changed once defined

• Lists are mutable, allowing for elements to be added, removed, or modified

• Tuples are typically used for fixed collections of items, while lists are used for dynami
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Quant Topics: Interests, Sequence and Series along with Missing items, Time and Distance/Work,
Verbal Topics: Comprehension, Corrections, Grammar etc
CS Core Subjects: DSA, OOPS, DBMS, OS

Overall Test Difficulty was Easy-Medium

System asked to choose one of the programming languages from C, C++ or Java. (Note: You can't change the language once confirmed!)
There were 7 different coding questions along with code. You just need to debug the code to get the correct output.
DSA: Graphs (Basics), Linked Lists, Conditional Statements, and Arrays (Stack and Queue)

Overall Difficulty was Medium (tbh, it depends on the practice you have done!)

Q1. 1. Tell me about yourself 2. What tech stack(s) you have worked on? Why? Why not others? 3. SQL queries based on joins, nesting and aggregations 4. Logical reasoning questions 5. Previous internships exper...read more
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Q1. 1. Tell me about yourself 2. Why you do seek to join this company? 3. Are you comfortable working in shifts? If yes, how will you manage your time? 4. SQL queries 5. Logical question: Total number of squar...read more
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Q1. 1. Tell me about your day. Walk me through it. 2. If given a coding problem, what is your preferred language? Why? 3. Walk me through your best project in your resume. Why/How/When did you make it? 4. Tell...read more
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Q1. Flatten a tree in right preorder
Ans. 
Flatten a tree in right preorder
• Traverse the tree in right-preorder (root, right, left)

• Use a stack to keep track of nodes

• Pop nodes from stack and add to result array
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We had Aptitude and 2 Coding questions

Q1. Data Structure and Algo
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Q1. Basic HR questions were asked
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General apti questions

Work-life balance and career progression