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TikTok Senior Software Engineer Interview Questions and Answers

Updated 24 Oct 2024

TikTok Senior Software Engineer Interview Experiences

2 interviews found

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
Not Selected
Round 1 - Technical 

(2 Questions)

  • Q1. Interviewer asked introduction
  • Q2. After Introduction he will dig into my projects and after that one DSA Problem
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(1 Question)

  • Q1. Word search II from leetcode
  • Ans. 

    Word search II is a problem where you have to find all words from a given list in a 2D board of characters.

    • Use a trie data structure to efficiently search for words in the board.

    • Implement a backtracking algorithm to explore all possible paths in the board.

    • Optimize the search by pruning branches that cannot lead to a valid word.

  • Answered by AI

Skills evaluated in this interview

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Interview questions from similar companies

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via LinkedIn and was interviewed in May 2024. There were 3 interview rounds.

Round 1 - Technical 

(4 Questions)

  • Q1. What is event loop, how it works.
  • Ans. 

    Event loop is a mechanism in programming that allows for asynchronous execution of code by continuously checking for and handling events.

    • Event loop is commonly used in JavaScript to handle asynchronous operations like setTimeout, setInterval, and AJAX requests.

    • It works by continuously checking the event queue for any pending events, executing them one by one, and then moving on to the next event.

    • Event loop helps in pre...

  • Answered by AI
  • Q2. Micro task queue and macro task queue.
  • Q3. Is node.js single threaded or multi-threaded, also discuss threadpool and it's usages.
  • Q4. Tell the order of output, among process, promise, setTimeout, fs, setInterval.
  • Ans. 

    The order of output is fs, process, setTimeout, setInterval, promise.

    • fs module is synchronous and will output first

    • process is next in line

    • setTimeout will be executed after process

    • setInterval will be executed after setTimeout

    • promise will be executed last

  • Answered by AI
Round 2 - Technical 

(4 Questions)

  • Q1. JavaScript usages compiler or interpreter.
  • Ans. 

    JavaScript is an interpreted language.

    • JavaScript is an interpreted language, meaning it is executed line by line at runtime.

    • There is no separate compilation step in JavaScript like in languages that use compilers.

    • Examples of interpreted languages include Python, Ruby, and PHP.

  • Answered by AI
  • Q2. Tell the output among various for loops using var, let and bind.
  • Ans. 

    Output comparison of for loops using var, let, and bind in JavaScript.

    • Using var: variable is function-scoped, may lead to unexpected behavior in loops.

    • Using let: variable is block-scoped, recommended for loop iterations.

    • Using bind: creates a new function with a specified 'this' value and initial arguments.

  • Answered by AI
  • Q3. A medium level dsa question on array, solved it using pre-sum.
  • Q4. Situation based question, on how to pick a suitable database.
Round 3 - Technical 

(4 Questions)

  • Q1. What do you do on daily basis, and how to decide a tech-stack on high level.
  • Ans. 

    I work on coding, debugging, testing, and collaborating with team members. Tech stack decisions are based on project requirements, scalability, performance, and team expertise.

    • Daily tasks include coding, debugging, testing, and collaborating with team members

    • Tech stack decisions are based on project requirements, scalability, performance, and team expertise

    • Consider factors like language compatibility, libraries/framewo...

  • Answered by AI
  • Q2. Design an online scalable, real-time document sharing application like google docs.
  • Ans. 

    Design a scalable, real-time document sharing app like Google Docs.

    • Use websockets for real-time collaboration

    • Implement version control to track changes

    • Utilize a distributed database for scalability

    • Include user authentication and access control

    • Support offline editing with automatic sync

  • Answered by AI
  • Q3. How to handle images also in the future.
  • Ans. 

    Utilize cloud storage for scalability, implement image compression techniques, and regularly update image processing libraries.

    • Utilize cloud storage for scalability

    • Implement image compression techniques

    • Regularly update image processing libraries

  • Answered by AI
  • Q4. Any other way to solve the problem, of high I/O on same document to overcome throughput and conflicts.

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
Not Selected
Round 1 - Coding Test 

Questions were crayon box ,the bot and the game and happy neighbourhood for 90 mins

Round 2 - Technical 

(2 Questions)

  • Q1. Array basics was asked
  • Q2. Segment tree,prefix sum
Round 3 - Technical 

(1 Question)

  • Q1. Low level design was asked
Interview experience
1
Bad
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Design Booking Management System
  • Ans. 

    Design a Booking Management System for handling reservations and scheduling.

    • Create a user-friendly interface for customers to make bookings

    • Implement a database to store booking information

    • Include features for managing availability, cancellations, and payments

  • Answered by AI

Skills evaluated in this interview

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

DSA Problems from leetcode

Round 2 - Technical 

(1 Question)

  • Q1. Basics about Android and iOS
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Referral and was interviewed in Aug 2024. There was 1 interview round.

Round 1 - Coding Test 

I was asked question on sliding window on finding the largest subarray with all distinct numbers. The interviewer was very helpful.

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

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

Round 1 - Technical 

(1 Question)

  • Q1. Order management coding Crud api using in memory storage
  • Ans. 

    Implement CRUD API for order management using in-memory storage

    • Use RESTful endpoints for CRUD operations (GET, POST, PUT, DELETE)

    • Store orders in a data structure like a list or dictionary in memory

    • Handle error cases like invalid input or missing data

    • Implement validation for input data to ensure data integrity

  • Answered by AI

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Job Fair

Round 1 - Technical 

(1 Question)

  • Q1. Create a controller , service and repository methods and classes to save userDeatils in table using Spring Data JPA .
  • Ans. 

    Create a controller, service, and repository to save user details using Spring Data JPA.

    • Create a UserController class with appropriate mappings for saving user details.

    • Create a UserService class with a method to save user details.

    • Create a UserRepository interface that extends JpaRepository to handle database operations.

    • Implement the saveUserDetails method in the UserService class to call the save method of the UserRepo...

  • Answered by AI

Interview Preparation Tips

Topics to prepare for Digit Insurance Senior Software Engineer interview:
  • Sping Boot
  • Rest Full Api
  • Spring Data JPA
Interview preparation tips for other job seekers - Just prepare top 50 spring boot question and you can easily crack interview .

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(1 Question)

  • Q1. Leetcode medium coding question

TikTok Interview FAQs

How many rounds are there in TikTok Senior Software Engineer interview?
TikTok interview process usually has 1 rounds. The most common rounds in the TikTok interview process are Technical and One-on-one Round.
What are the top questions asked in TikTok Senior Software Engineer interview?

Some of the top questions asked at the TikTok Senior Software Engineer interview -

  1. Word search II from leetc...read more
  2. After Introduction he will dig into my projects and after that one DSA Prob...read more
  3. Interviewer asked introduct...read more

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TikTok Senior Software Engineer Interview Process

based on 2 interviews

Interview experience

4.5
  
Good
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