Clearwater Analytics Interview Questions, Process, and Tips

Round duration - 90 minutes
Round difficulty - Medium

Total of 8 questions:

4 MCQ(oops and expected output type questions) + other 2 were coding questions, out of which one is some class implementation question.

Q1. 
Count Subarrays with Sum Divisible by K
Given an array ARR and an integer K, your task is to count all subarrays whose sum is divisible by the given integer K.
Input:
The first line of input contains an...read more
Ans. 
Count subarrays with sum divisible by K in an array.
• Iterate through the array and keep track of the running sum modulo K.

• Use a hashmap to store the frequency of remainders.

• For each prefix sum, check how many previous prefix sums have the same remainder.

• Return the total count of subarrays with sum divisible by K.
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Round duration - 60 minutes
Round difficulty - Easy

This round was with the USA team, the panel consisted of 2 members. It took place at around 9 PM IST. The interviewer's focus was on approach.

Q1. 
Sort an Array in Wave Form
You are given an unsorted array ARR. Your task is to sort it so that it forms a wave-like array.
Input:
The first line contains an integer 'T', the number of test cases.
For ea...read more
Ans. 
Sort an array in a wave-like pattern where each element is greater than or equal to its adjacent elements.
• Iterate through the array and swap elements at even indices with their adjacent odd indices to form a wave pattern.

• There can be multiple valid wave arrays, so any valid wave array is acceptable.

• Ensure the first element is greater than or equal to the second element to start the wave pattern.
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Q2. 
Convert a Number to Words
Given an integer number num, your task is to convert 'num' into its corresponding word representation.
Input:
The first line of input contains an integer ‘T’ denoting the number o...read more
Ans. 
Convert a given integer number into its corresponding word representation.
• Implement a function that takes an integer as input and returns the word representation of that number.

• Break down the number into its individual digits and convert each digit into its word form.

• Handle special cases like numbers between 10 and 19, and multiples of 10.

• Combine the word forms of individual digits to form the final word representation
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Round duration - 40 minutes
Round difficulty - Easy

It was a managerial round. The position of the person taking the interview was of a technical architect. As was informed by the recruiter, previously he was a technical architect at Amazon.

Q1. How does Facebook store comments in its database?
Ans. 
Facebook stores comments in its database using a combination of relational and non-relational databases.
• Comments are typically stored in a relational database like MySQL for structured data storage.

• For scalability and performance, Facebook may also use a NoSQL database like Cassandra or HBase for storing comments in a denormalized format.

• Metadata related to comments such as likes, timestamps, and user information may b...read more
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Q1. What is bond? Type? Rating type
Ans. 
A bond is a debt security that pays interest to the bondholder. It can be of different types and ratings.
• Bonds are issued by corporations, municipalities, and governments to raise capital.

• Types of bonds include corporate bonds, municipal bonds, and government bonds.

• Bond ratings are given by credit rating agencies like Moody's and S&P to indicate the creditworthiness of the issuer.

• Bond ratings range from AAA (highest) t
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Q2. What is paydown , factor, income, dividend, corporate action, fixed income
Ans. 
Paydown, factor, income, dividend, corporate action, fixed income are terms related to finance and investments.
• Paydown refers to the reduction of debt by making payments on a loan or bond.

• Factor is the amount by which a company's earnings are expected to grow in the future.

• Income is the money earned from investments or employment.

• Dividend is a portion of a company's profits paid out to shareholders.

• Corporate action ref...read more
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Q1. Its clients round and they can ask you about recon or implementation related questions
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Q1. Work experience and past experience
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Q1. What is Bond , Type , Rating ? What is Corporate action , type ? What is Coupon and Paydown ? What is Paydown factor and why its Important ? What is Derivative , Type ? Pricing ?
Ans. 
Explanation of financial terms related to bonds, corporate actions, coupons, paydowns, derivatives, and pricing.
• Bond: a debt security issued by a company or government

• Type: the specific characteristics of a bond, such as maturity date or interest rate

• Rating: a measure of the creditworthiness of a bond issuer

• Corporate action: an event that affects a company's securities, such as a merger or dividend

• Coupon: the interest ...read more
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Q1. What is bond, type , rating? What is paydown , factor , credits rating? What is swap, income , corporate action and its type
Ans. 
Bond, paydown, factor, credit rating, swap, income, corporate action and its type are all financial terms.
• Bond is a debt security that pays interest to the investor.

• Paydown is the reduction of the outstanding principal amount of a loan.

• Factor is the percentage of the original principal amount of a loan that remains outstanding.

• Credit rating is an assessment of the creditworthiness of a borrower.

• Swap is a financial cont...read more
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Q1. Situational questions
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