Wells Fargo Previous Year Coding Questions and Hiring Process
Wells Fargo runs a large technology center in India out of Hyderabad, Bengaluru, and Chennai, and hires freshers every year for its Program Associate and Technology Analyst roles through campus and off campus drives. The process leans on a proctored SHL AMCAT based assessment followed by rounds that dig into DSA, database design, and core CS fundamentals.
If you are preparing for Wells Fargo, understanding the online assessment structure, the technical interview expectations, and the recurring puzzle style questions will help you prepare efficiently. This guide covers the complete Wells Fargo hiring process along with previous year coding questions asked in its online assessments and interviews.
Wells Fargo Hiring Process
Here is the typical flow for Wells Fargo fresher hiring through campus and off campus drives.
| Stage | What Happens | What They Are Looking For |
|---|---|---|
| A proctored SHL AMCAT based test, often run at the college placement cell, covering verbal ability, business or data interpretation, and two coding problems of easy to medium difficulty. | Accuracy under time pressure and working code. |
| One or two rounds covering DSA, OOP concepts, SQL and DBMS, operating systems, and a walkthrough of your resume and projects. Logic puzzles show up here as well. | Depth of understanding and ability to explain your own code. |
| Sometimes merged with the technical round, covering your tech stack choices, cloud basics, and career goals. | Judgement and clarity about your career direction. |
| A short conversation, sometimes by phone, about your background, location preference, and interest in joining Wells Fargo. | Cultural fit and genuine motivation. |
Wells Fargo drives report meaningful attrition at every stage, so treat each round with equal seriousness rather than assuming later rounds are a formality once you clear the OA.
Assessment Pattern
Format: A proctored SHL AMCAT based online test, sometimes conducted offline at your college's placement cell, generally completed in one sitting lasting anywhere from 100 minutes to 3 hours depending on the drive.
Sections typically included:
- Verbal Ability: Grammar, comprehension, and vocabulary.
- Business or Data Interpretation: Reading graphs, pie charts, candlestick stock charts, and profit or loss problems.
- Coding Round: Two problems, easy to medium difficulty, covering arrays, strings, greedy algorithms, and sometimes dynamic programming or graph problems like Dijkstra's algorithm.
Wells Fargo Coding Round: What to Expect
The coding round at Wells Fargo blends everyday array and string manipulation with the occasional graph or greedy problem. Frequently reported topics include:
- String cleaning problems such as removing vowels or filtering out non alphanumeric characters
- Array and matrix problems such as finding the transpose or searching in a sorted matrix
- Hashing based problems such as finding non repeating characters
- Greedy and dynamic programming hybrids, occasionally paired with graph problems like Dijkstra's algorithm
- Classic logic puzzles, including river crossing style jug puzzles and coin or change based math puzzles
For hands on practice, use:
Technical Interview Focus Areas
Real questions reported by candidates in the technical interview round:
- Why does Java not have pointers.
- Explain threads in Java, and the difference between threads and daemon threads.
- Write a SQL query to find the second largest salary or marks in a table.
- Write a SQL query to find employees earning more than their department's average salary.
- Write a SQL query to find the top 5 customers by sales using multiple table joins.
- What is the difference between final, finally, and finalize in Java.
- Difference between overloading and overriding.
- Difference between linear and non linear data structures.
- Explain garbage collection, and the difference between stack and heap memory.
- Explain normalization versus denormalization, and what indexing is used for.
- Explain client server architecture in the context of DBMS.
- RDBMS versus NoSQL, what factors decide which to use, and how would you scale MySQL without migrating to NoSQL.
- What is SQL injection, and how do you prevent it.
- Difference between the HTTP PUT and PATCH methods.
- Difference between a real time operating system and a time sliced operating system.
- Why are React and Node often used together, what happens when a React app runs, and what is the difference between state and props.
- Supervised versus unsupervised versus reinforcement learning, explained at a basic level.
HR Interview Tips
The HR round checks communication, motivation, and overall fit. Common questions include:
- What do you know about Wells Fargo.
- Why do you want to join Wells Fargo.
- What is your location preference, and are you open to relocating.
- Do you have plans for higher studies, and do you have other offers in hand.
- What is the difference between a leader and a boss.
- How would your professors describe you.
- Tell me about your greatest achievement, and share some background about your family.
- If asked, justify why you are not pursuing higher studies, a startup, or a family business instead.
- Describe how you handled a conflict or a difference of opinion within a team.
Complete HR Interview Questions
Answer with specific examples from your projects and internships rather than generic statements, and be ready to justify any technology choice you mention on your resume.
Resources to Prepare for Wells Fargo
- Free Aptitude Mock Practice latest patterns and mock tests
- ATS Score Checker and Resume Optimizer
- Roadmaps
- Interview Questions
- Resume Templates
- Free Placement Materials (Google Drive)
- Interview Experience
Wells Fargo Previous Year Coding Questions
Below is a list of Wells Fargo previous year coding questions commonly reported by candidates in the online assessment and technical interview. Each question includes a problem statement, input and output format, and a sample explanation.
1. Remove Vowels From a String
Problem Statement: Given a string, remove all vowels from it and return the resulting string.
Input Format:
- A string
s
Output Format:
- The string with all vowels removed
Example:
Input: programming
Output: prgrmmng
2. Count Characters That Are Neither Digits Nor Alphabets
Problem Statement: Given a string, count how many characters in it are neither digits nor alphabetic letters.
Input Format:
- A string
s
Output Format:
- The count of special characters
Example:
Input: hello@world123!
Output: 2
3. Number of Islands
Problem Statement: Given a 2D grid of 1s representing land and 0s representing water, count the number of islands, where an island is a group of connected 1s in four directions.
Input Format:
- A 2D grid of 0s and 1s
Output Format:
- The number of islands
Example:
Input: [[1,1,0],[0,1,0],[0,0,1]]
Output: 2
4. Find Non-Repeating Characters in a String
Problem Statement: Given a string, find all characters that appear exactly once.
Input Format:
- A string
s
Output Format:
- The list of non repeating characters, in order of appearance
Example:
Input: swiss
Output: w, i
5. Longest Common Substring Starting From Index 0
Problem Statement: Given an array of strings, find the longest common substring that starts from index 0 across all of them.
Input Format:
- An array of strings
Output Format:
- The longest common prefix substring
Example:
Input: ["flower", "flow", "flight"]
Output: fl
6. Find the Factorial of a Number
Problem Statement: Given a non negative integer, calculate its factorial.
Input Format:
- An integer
n
Output Format:
- The factorial of
n
Example:
Input: 5
Output: 120
7. Swap Two Numbers Without a Temporary Variable
Problem Statement: Given two numbers, swap their values without using a third temporary variable.
Input Format:
- Two integers
aandb
Output Format:
- The swapped values of
aandb
Example:
Input: a = 5, b = 9
Output: a = 9, b = 5
8. Find the Transpose of a Matrix
Problem Statement: Given a matrix, find and print its transpose, where rows become columns and columns become rows.
Input Format:
- A 2D integer matrix
Output Format:
- The transposed matrix
Example:
Input: [[1,2,3],[4,5,6]]
Output: [[1,4],[2,5],[3,6]]
9. Kth Largest Element in an Array
Problem Statement: Given an unsorted array, find the Kth largest element.
Input Format:
- An integer array
arrand an integerk
Output Format:
- The Kth largest element
Example:
Input: arr = [3,2,1,5,6,4], k = 2
Output: 5
10. Search an Element in a Sorted Matrix
Problem Statement: Given a matrix where each row and each column is sorted in ascending order, determine whether a target value exists in the matrix.
Input Format:
- A sorted 2D matrix and a target value
Output Format:
"Found"or"Not Found"
Example:
Input: matrix = [[1,4,7],[2,5,8],[3,6,9]], target = 5
Output: Found
11. Sort an N by N Matrix Row-wise and Column-wise
Problem Statement: Given an N by N matrix of integers, rearrange its elements so that every row and every column is sorted in ascending order.
Input Format:
- An N by N integer matrix
Output Format:
- The rearranged matrix, sorted row-wise and column-wise
Example:
Input: [[9,2],[7,1]]
Output: [[1,2],[7,9]]
12. Longest Substring Without Repeating Characters
Problem Statement: Given a string, find the length of the longest substring without repeating characters.
Input Format:
- A string
s
Output Format:
- The length of the longest substring without repeats
Example:
Input: abcabcbb
Output: 3
13. Implement a Queue Using Two Stacks
Problem Statement: Implement a first in first out queue using only two stacks, supporting enqueue and dequeue.
Input Format:
- A sequence of enqueue and dequeue operations
Output Format:
- The result of each dequeue operation
Example:
Input: enqueue(1), enqueue(2), dequeue(), enqueue(3), dequeue()
Output: 1, 2
14. Check if a String Is a Palindrome
Problem Statement: Given a string, determine whether it reads the same forwards and backwards.
Input Format:
- A string
s
Output Format:
"Palindrome"or"Not Palindrome"
Example:
Input: madam
Output: Palindrome
15. Dijkstra's Shortest Path Algorithm
Problem Statement: Given a weighted graph and a source node, find the shortest distance from the source to every other node.
Input Format:
- A list of weighted edges and a source node
Output Format:
- The shortest distance from the source to each node
Example:
Input: edges = [(1,2,4),(1,3,1),(3,2,1)], source = 1
Output: Distance to 2 = 2, Distance to 3 = 1
16. Character Value Summation Using a HashMap
Problem Statement: Given a string, assign each letter its position in the alphabet as a value, and use a hash map to compute the total sum of these values.
Input Format:
- A string
scontaining only lowercase letters
Output Format:
- The total sum of character values
Example:
Input: abc
Output: 6
17. The Water Jug Puzzle
Problem Statement: You have three jugs with capacities of 3 litres, 5 litres, and 7 litres, and no other measuring device. Using only these jugs, measure out exactly 4 litres of water.
Input Format:
- Jug capacities of 3, 5, and 7 litres, and a target of 4 litres
Output Format:
- A sequence of pour, fill, and empty steps that results in exactly 4 litres in one jug
Example:
Answer: Fill the 7 litre jug, pour into the 3 litre jug until full, leaving 4 litres in the 7 litre jug
Why it works: Using the largest jug as a working container and the smallest as a fixed unit to subtract lets you reach intermediate quantities that neither jug alone can measure.
18. The Wine Glass Breaking Puzzle
Problem Statement: A shop sold 100 wine glasses. For each glass sold whole, the shop earned a profit of a fixed amount, and for each glass that broke before being sold, the shop incurred a fixed loss. Given the shop's net earning and the profit and loss amounts per glass, find how many glasses broke.
Input Format:
- Total glasses, profit per glass sold, loss per glass broken, and the net earning
Output Format:
- The number of glasses broken
Example:
Input: total = 100, profit = 0.03, loss = 0.10, netEarning = 2.40
Output: 9
Why it works: Set up two equations, one for the total glass count and one for the net earning, then solve them together to isolate the number of broken glasses.
At Last
Wells Fargo mixes everyday DSA with database depth and the occasional classic logic puzzle, so prepare across all three rather than over indexing on just one. Revise SQL joins and aggregate queries, practice explaining OOP fundamentals like overloading and garbage collection clearly, and keep a couple of classic puzzles fresh in memory since they reappear across multiple reported drives.
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