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Toptal Interview Questions and Answers

Updated 22 Oct 2024

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3 interviews found

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. How will you explain how ReactJS works for none technical person
  • Ans. 

    ReactJS is a JavaScript library for building user interfaces.

    • ReactJS is a library used for building interactive user interfaces on the web.

    • It allows developers to create reusable UI components that update automatically when data changes.

    • React uses a virtual DOM to efficiently update the actual DOM, resulting in faster performance.

    • Components in React can be nested within each other to create complex UI structures.

    • React ...

  • Answered by AI
  • Q2. Explain your solution for your team member
  • Ans. 

    I would explain my solution in a clear and concise manner, using visual aids if necessary.

    • Break down the problem into smaller parts

    • Use diagrams or flowcharts to illustrate the solution

    • Provide code snippets or examples to demonstrate implementation

  • Answered by AI

Skills evaluated in this interview

Front end Developer Interview Questions asked at other Companies

Q1. Non-Decreasing ArrayYou have been given an integer array/list 'ARR' of size 'N'. Write a solution to check if it could become non-decreasing by modifying at most 1 element. We define an array as non-decreasing, if ARR[i] <= ARR[i + 1] ho... read more
View answer (6)
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Company Website and was interviewed in Apr 2024. There were 2 interview rounds.

Round 1 - Coding Test 

2 coding questions, Java

Round 2 - Assignment 

Create a website, 7 days

Interview Preparation Tips

Topics to prepare for Toptal Software Developer interview:
  • Java
  • Javascript
  • OOP
Interview preparation tips for other job seekers - Be yourself

Software Developer Interview Questions asked at other Companies

Q1. Maximum Subarray SumGiven an array of numbers, find the maximum sum of any contiguous subarray of the array. For example, given the array [34, -50, 42, 14, -5, 86], the maximum sum would be 137, since we would take elements 42, 14, -5, and ... read more
View answer (39)
Round 1 - One-on-one 

(1 Question)

  • Q1. Have good communication skill

Interview Preparation Tips

Interview preparation tips for other job seekers - Be soft skilled and speak with lower tone

Senior Software Engineer Interview Questions asked at other Companies

Q1. Find Nth PrimeYou are given a number 'N'. Your task is to find Nth prime number. A prime number is a number greater than 1 that is not a product of two smaller natural numbers. Prime numbers have only two factors – 1 and the number itself. ... read more
View answer (6)

Interview questions from similar companies

Interview experience
2
Poor
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
No response

I applied via Naukri.com and was interviewed in Nov 2024. There was 1 interview round.

Round 1 - Technical 

(16 Questions)

  • Q1. What are custom hooks in React, and what are their use cases? Additionally, can you provide an example of a custom hook that performs an API call and utilizes the retrieved data?
  • Q2. What is the difference between useMemo and useCallback in React?
  • Q3. What is the difference between class-based components and functional components in React?
  • Q4. How can you implement the lifecycle of a React component in a functional component?
  • Q5. What are the various state management techniques available in React?
  • Q6. What is the architecture of Redux, and what purposes do middlewares serve within it?
  • Q7. What is hoisting in JavaScript?
  • Q8. What is event bubbling in JavaScript?
  • Q9. What are block scope and function scope in JavaScript?
  • Q10. Have you had experience working with semantic tags in HTML?
  • Q11. What are the various methods for creating an object in JavaScript?
  • Q12. What are the differences between shallow copy and deep copy in JavaScript?
  • Q13. What will be the output of the following JavaScript code fragment: `const a; function test() { console.log(a); }; test();`?
  • Q14. How can you use CSS to arrange elements in a row and column layout?
  • Q15. Have you utilized CSS preprocessors, and if so, which ones?
  • Q16. If I have assigned different colors to an ID and a class and applied both to the same element, which color will be applied based on CSS specificity precedence?

Interview Preparation Tips

Topics to prepare for Cognizant Senior Software Engineer interview:
  • Javascript
  • React.Js
  • HTML
  • CSS
Interview preparation tips for other job seekers - Possessing a deep understanding of JavaScript and React is essential. Interviewers may engage in mind games with candidates; therefore, we should remain calm and focused solely on the questions. Additionally, we need to be confident in our answers; otherwise, they may respond with doubt, asking, "Is that so?"
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
6-8 weeks
Result
Selected Selected

I applied via campus placement at Institute of Cost and Works Accountants of India (ICWAI) and was interviewed in Dec 2024. There were 3 interview rounds.

Round 1 - Aptitude Test 

Online assessment (Technical, English, Reasoning)

Round 2 - Technical 

(6 Questions)

  • Q1. Difference between Balance sheet and trial balance
  • Ans. 

    Balance sheet shows assets, liabilities, and equity at a specific point in time. Trial balance lists all ledger accounts with their balances.

    • Balance sheet is a snapshot of a company's financial position at a specific point in time.

    • Trial balance is a list of all ledger accounts with their balances to ensure debits equal credits.

    • Balance sheet includes assets, liabilities, and equity sections.

    • Trial balance is used to prep...

  • Answered by AI
  • Q2. Standard costing formula
  • Ans. 

    Standard costing formula calculates the expected cost of a product based on predetermined standards.

    • Standard costing formula includes direct materials, direct labor, and overhead costs.

    • It helps in comparing actual costs with standard costs to identify variances.

    • Formula: Standard Cost = Standard Quantity of Inputs x Standard Price of Inputs

  • Answered by AI
  • Q3. Journal entries for Prepaid Accruals Depreciation with accumulated depreciation concept Provision for Bad debts DTA and DTL
  • Ans. 

    Explanation of journal entries for Prepaid, Accruals, Depreciation, Provision for Bad debts, DTA, and DTL.

    • Prepaid expenses are initially recorded as assets and then expensed over time as they are used up.

    • Accruals are expenses incurred but not yet paid or revenue earned but not yet received.

    • Depreciation is the allocation of the cost of a fixed asset over its useful life, with accumulated depreciation representing the to...

  • Answered by AI
  • Q4. Case study on Ind AS 115
  • Q5. Preparation of balance sheet and computation of various ratios
  • Ans. 

    Preparation of balance sheet involves listing assets, liabilities, and equity. Ratios are computed using financial data from the balance sheet.

    • List all assets, liabilities, and equity on the balance sheet

    • Calculate various financial ratios such as current ratio, debt to equity ratio, and return on equity

    • Use formulae like Current Ratio = Current Assets / Current Liabilities

    • Interpret the ratios to analyze the financial he

  • Answered by AI
  • Q6. Accounting principles
Round 3 - Technical 

(6 Questions)

  • Q1. What is DTA and DTL
  • Ans. 

    DTA stands for Deferred Tax Asset and DTL stands for Deferred Tax Liability.

    • DTA is an asset recorded on a company's balance sheet that may be used to reduce taxable income in the future.

    • DTL is a liability recorded on a company's balance sheet that represents taxes that have been accrued but not yet paid.

    • DTA arises when a company has overpaid taxes or has tax deductions that exceed its taxable income.

    • DTL arises when a c...

  • Answered by AI
  • Q2. Accounting entry for accumulated depreciation
  • Ans. 

    Accumulated depreciation is a contra asset account that represents the total depreciation expense taken on an asset since it was acquired.

    • Accumulated depreciation is recorded on the balance sheet as a reduction from the gross amount of fixed assets to arrive at the net book value.

    • The accounting entry for accumulated depreciation involves debiting the depreciation expense account and crediting the accumulated depreciati...

  • Answered by AI
  • Q3. Few resume based questions
  • Q4. Standard costing formula
  • Ans. 

    Standard costing formula calculates the expected cost of a product based on predetermined standards.

    • Standard costing formula = Standard cost of direct materials + Standard cost of direct labor + Standard manufacturing overhead cost

    • Standard cost of direct materials = Standard quantity of materials x Standard price per unit

    • Standard cost of direct labor = Standard hours of labor x Standard rate per hour

    • Standard manufactur...

  • Answered by AI
  • Q5. Difference between budgeting and forecasting
  • Ans. 

    Budgeting involves setting financial goals and allocating resources, while forecasting predicts future financial outcomes based on past data and trends.

    • Budgeting is a plan for how to allocate resources and achieve financial goals

    • Forecasting predicts future financial outcomes based on past data and trends

    • Budgeting is typically done on an annual basis, while forecasting can be done on a shorter or longer term basis

    • Budget...

  • Answered by AI
  • Q6. Meaning of variance analysis
  • Ans. 

    Variance analysis is a technique used to identify and analyze the difference between planned financial outcomes and actual results.

    • Variance analysis helps in understanding the reasons for deviations from budgeted or expected figures.

    • It involves comparing actual financial performance with budgeted or standard performance.

    • Common types of variances include price variance, quantity variance, and mix variance.

    • Variance analy...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - It was an on campus recruitment. (CMA Campus Placements)
First technical interview was for 45 - 50 mins
Second technical interview was for 20 mins
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via campus placement at J S S Academy of Technical Education, Bangalore and was interviewed in Dec 2024. There were 3 interview rounds.

Round 1 - Aptitude Test 

Average to easy difficulty level.

Round 2 - Technical 

(3 Questions)

  • Q1. Java code of string manipulation
  • Q2. What is the Java code for various types of sorting algorithms?
  • Q3. Sql query and topics related to joins.
Round 3 - HR 

(4 Questions)

  • Q1. About yourself and family
  • Q2. What do you know about the company?
  • Q3. Can you provide examples of real-life scenarios where you handled conflicts with either a colleague or a manager?
  • Q4. What actions would you take if your manager does not approve your product idea, and how would you attempt to persuade them?

Interview Preparation Tips

Interview preparation tips for other job seekers - Be confident; they will strive to comfort you despite any feelings of hesitation and nervousness. A foundational understanding of Java or C++, along with knowledge of data structures and algorithms (DSA), will be extremely advantageous. You should illustrate your potential contributions while also recognizing your limitations. Foster a positive atmosphere.
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed in Dec 2024. There were 2 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. What is the Singleton pattern ? in how many ways can this pattern be broken ?
  • Ans. 

    Singleton pattern ensures a class has only one instance and provides a global point of access to it.

    • Singleton pattern can be implemented by making the constructor private and providing a static method to access the instance.

    • The pattern can be broken by using reflection to access the private constructor and create multiple instances.

    • Another way to break the Singleton pattern is by using multiple class loaders in Java.

    • Th...

  • Answered by AI
  • Q2. What is the internal implementation of hashmap? Let's assume that you want to store duplicate keys in the hashmap, how can we achieve the same in hashmap ?
  • Ans. 

    HashMap internally uses an array of linked lists to store key-value pairs. To store duplicate keys, we can use a custom implementation of HashMap.

    • HashMap internally uses an array of linked lists to handle collisions.

    • To store duplicate keys, we can create a custom HashMap implementation that allows multiple values for the same key.

    • One approach is to use a HashMap with values as lists, where each key can have multiple va

  • Answered by AI
Round 2 - Technical 

(2 Questions)

  • Q1. What microservices patterns are you aware ? let's assume that there is a microservice based architecture and service A is calling service B which in turn service C. If service b fails, how will you manage ...
  • Ans. 

    Use compensating transactions and distributed tracing for managing transaction and logging in case of service B failure.

    • Implement compensating transactions to rollback changes made by service B in case of failure.

    • Use distributed tracing to track the flow of requests and identify where the failure occurred.

    • Implement retry mechanisms to handle transient failures in service B.

    • Use circuit breakers to prevent cascading fail...

  • Answered by AI
  • Q2. System Design question : Design a booking wesite for.eg: bookin.com ?
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed in Nov 2024. There were 2 interview rounds.

Round 1 - Aptitude Test 

The Aptitude Test session accesses mathematical and logical reasoning abilities

Round 2 - Technical 

(6 Questions)

  • Q1. What is Vlookup
  • Ans. 

    Vlookup is a function in Excel used to search for a value in a table and return a corresponding value from another column.

    • Vlookup stands for 'Vertical Lookup'

    • It is commonly used in Excel to search for a value in the leftmost column of a table and return a value in the same row from a specified column

    • Syntax: =VLOOKUP(lookup_value, table_array, col_index_num, [range_lookup])

    • Example: =VLOOKUP(A2, B2:D10, 3, FALSE) - searc...

  • Answered by AI
  • Q2. Some IF else Question in Excel
  • Q3. What does your day in your previous organization look like?
  • Ans. 

    My day in my previous organization involved analyzing large datasets, creating reports, and presenting findings to stakeholders.

    • Reviewing and cleaning large datasets to ensure accuracy

    • Creating visualizations and reports to communicate insights

    • Collaborating with team members to identify trends and patterns

    • Presenting findings to stakeholders in meetings or presentations

  • Answered by AI
  • Q4. Could you share the technical skills you possess?
  • Ans. 

    I possess strong technical skills in data analysis, including proficiency in programming languages, statistical analysis, and data visualization tools.

    • Proficient in programming languages such as Python, R, SQL

    • Skilled in statistical analysis and data modeling techniques

    • Experience with data visualization tools like Tableau, Power BI

    • Knowledge of machine learning algorithms and techniques

  • Answered by AI
  • Q5. Can you explain what a Pivot Table is?
  • Ans. 

    A Pivot Table is a data summarization tool used in spreadsheet programs to analyze, summarize, and present data in a tabular format.

    • Pivot tables allow users to reorganize and summarize selected columns and rows of data to obtain desired insights.

    • Users can easily group and filter data, perform calculations, and create visualizations using pivot tables.

    • Pivot tables are commonly used in Excel and other spreadsheet program...

  • Answered by AI
  • Q6. Find the Highest-paid employee in each department along with their salary and department name.
  • Ans. 

    To find the highest-paid employee in each department, we need to group employees by department and then select the employee with the highest salary in each group.

    • Group employees by department

    • Find the employee with the highest salary in each group

    • Retrieve the employee's name, salary, and department name

  • Answered by AI

Interview Preparation Tips

Topics to prepare for Nagarro Data Analyst interview:
  • SQL
  • Excel
  • Problem Solving
  • PowerBI
  • SQL Queries
Interview preparation tips for other job seekers - Practice common interviews and scenarios, especially for your role.
Be prepared to discuss past challenges and how did you overcome.
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
Selected Selected
Round 1 - Technical 

(5 Questions)

  • Q1. HTML, CSS fundamentals
  • Q2. Javascript event loop and array methods
  • Q3. Javascript coding for operation on object array
  • Q4. React benefits and Redux implementations
  • Q5. How to create slice and combine reducers
Round 2 - Behavioral 

(2 Questions)

  • Q1. Questions based on projects, role, responsibilities and initiative at work place
  • Q2. How to create and optimize a react application
Round 3 - HR 

(1 Question)

  • Q1. Day to day activity of workplace and salary negotiation
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

The aptitude test lasts 30 minutes and focuses on topics relevant to data engineering, including Spark, SQL, Azure, and PySpark.

Round 2 - Coding Test 

The coding test is a one-hour examination on PySpark.

Round 3 - Technical 

(3 Questions)

  • Q1. What is the difference between Cache() and Persist()?
  • Q2. What does the purpose of the Spark Submit command in Apache Spark?
  • Q3. What are window functions in SQL?
Round 4 - HR 

(2 Questions)

  • Q1. Could you provide more details about the daily responsibilities associated with this role?
  • Q2. How would you describe your work culture?

Toptal Interview FAQs

How many rounds are there in Toptal interview?
Toptal interview process usually has 1-2 rounds. The most common rounds in the Toptal interview process are One-on-one Round, Technical and Coding Test.
How to prepare for Toptal interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Toptal. The most common topics and skills that interviewers at Toptal expect are Analytics, Content Strategy, Management, Media Strategy and Product Management.
What are the top questions asked in Toptal interview?

Some of the top questions asked at the Toptal interview -

  1. How will you explain how ReactJS works for none technical per...read more
  2. Have good communication sk...read more

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