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Wasserstoff Backend Developer Interview Questions and Answers
Wasserstoff Backend Developer Interview Experiences
1 interview found
I appeared for an interview in Mar 2024.
You will get an assignment with an unrealistic deadline of 3 days within workdays only. github.com/wasserstoff-india Vision Mark Annotation suite repository
(1 Question)
- Q1. Set up an express app with Typescript.
- Ans.
Setting up an express app with Typescript
Install necessary dependencies: npm install express @types/express typescript @types/node
Create a tsconfig.json file with necessary configurations
Set up your express app in a TypeScript file
Interview Preparation Tips
No proper/structured processes and no best practices are being followed within the company. I could easily judge this because on asking the interviewer, he told me that there aren't any starter kits/boilerplates and you will be asked to set up a new one for each project within 5 minutes. From this, you can judge how things are being handled within the company and what will be your career growth graph.
You can attempt the assignment but my advice would be never join this company.
Skills evaluated in this interview
Interview questions from similar companies
Selected
I applied via Approached by Company and was interviewed before Oct 2023. There were 4 interview rounds.
(1 Question)
- Q1. Nothing technical but just asked if i know django and python
(3 Questions)
- Q1. About dsa like sorting algorithm
- Q2. Indexing in databases
- Ans.
Indexing in databases improves query performance by allowing faster retrieval of data.
Indexes are data structures that improve the speed of data retrieval operations on a database table.
They work by creating a sorted list of specific columns in a table, allowing the database to quickly locate the rows that match a query.
Examples of indexes include primary keys, unique keys, and composite indexes.
Indexes can be created ...
- Q3. Multithreading and multiprocessing
(4 Questions)
- Q1. Projects i did, in different orgs
- Ans.
I have worked on various projects in different organizations, showcasing my versatility and adaptability.
Developed a customer management system for a retail company, improving efficiency and customer satisfaction.
Implemented a data analytics platform for a marketing agency, enabling data-driven decision making.
Collaborated on a team to create a real-time messaging application for a tech startup, enhancing communication
- Q2. Notifications system
- Q3. Different datastructures and indexing problems and there solution
- Ans.
Different data structures like arrays, linked lists, trees, graphs, and their indexing problems and solutions.
Arrays: indexing is O(1), but insertion/deletion at arbitrary position is O(n)
Linked Lists: indexing is O(n), but insertion/deletion at arbitrary position is O(1)
Trees: indexing depends on the type of tree (e.g. binary search tree, AVL tree)
Graphs: indexing can be done using adjacency lists or matrices
Hash Tabl...
- Q4. Merge sort code
(1 Question)
- Q1. Os cn and memory allocation related questions
Skills evaluated in this interview
Senior Software Engineer Interview Questions & Answers
Habilelabs
NITIKA KANSAL
posted on 23 Nov 2021
I applied via LinkedIn and was interviewed in May 2021. There were 3 interview rounds.
Interview Questionnaire
4 Questions
- Q1. What is closure and explain?
- Ans.
Closure is a function that has access to variables in its outer scope, even after the outer function has returned.
Closure is created when a function is defined inside another function.
The inner function has access to the outer function's variables and parameters.
The inner function can access the outer function's variables even after the outer function has returned.
Closures are used for data privacy, event handlers, and...
- Q2. What is hoc, pure component and react.memo.
- Ans.
hoc, pure component and react.memo are all ways to optimize React components.
Higher Order Components (HOC) are functions that take a component and return a new component with additional functionality.
Pure Components are components that only re-render when their props or state change.
React.memo is a higher order component that memoizes the result of a component rendering, preventing unnecessary re-renders.
- Q3. Give the result of pre written javascript questions like counter increment.
- Q4. One coding question in react.
Interview Preparation Tips
Skills evaluated in this interview
Selected
I applied via Referral and was interviewed in Apr 2023. There were 2 interview rounds.
(2 Questions)
- Q1. Last company work profile
- Ans.
I worked as a Senior Software Engineer at XYZ Company.
Developed and maintained software applications
Collaborated with cross-functional teams to gather requirements and design solutions
Implemented new features and enhancements
Performed code reviews and provided technical guidance to junior developers
Resolved bugs and issues reported by users
Optimized application performance and scalability
Participated in agile developme
- Q2. Dot Net, oracle framework, sql related qu.
Selected
I applied via Walk-in and was interviewed before Jun 2022. There were 3 interview rounds.
(3 Questions)
- Q1. What is recursive function?
- Ans.
A recursive function is a function that calls itself within its definition.
A recursive function must have a base case to prevent infinite recursion.
Recursion is often used to solve problems that can be broken down into smaller, similar subproblems.
Example: Factorial function, Fibonacci sequence.
- Q2. Difference between c and c++
- Ans.
C is a procedural programming language while C++ is an object-oriented programming language.
C is a procedural programming language, while C++ is a combination of procedural and object-oriented programming.
C does not support classes and objects, while C++ does.
C does not have built-in support for exception handling, while C++ does.
C does not have namespaces, while C++ does.
C does not have function overloading, while C++
- Q3. Inheritance and data structures?
(2 Questions)
- Q1. What are the Oops concepts
- Ans.
Oops concepts are the fundamental principles of object-oriented programming, including inheritance, encapsulation, polymorphism, and abstraction.
Inheritance: Allows a class to inherit properties and behavior from another class.
Encapsulation: Bundling data and methods that operate on the data into a single unit.
Polymorphism: Ability to present the same interface for different data types.
Abstraction: Hiding the complex i...
- Q2. How to reverse any string
- Ans.
To reverse a string, iterate through the characters and build a new string in reverse order.
Iterate through the characters of the string from end to start
Append each character to a new string to build the reversed string
Return the reversed string as the result
Interview Preparation Tips
Skills evaluated in this interview
Software Developer Interview Questions & Answers
Kratikal Tech Private Limited
Anonymous
posted on 22 Dec 2022
Selected
I applied via Campus Placement and was interviewed in Jun 2022. There were 6 interview rounds.
20 aptitude question 10 was the cut off
There were total 9 question 3 mcq and 6 DSA question easy to moderate.
(1 Question)
- Q1. Deep discussion on javascript and project. They asked lot of questions on binary search, interviewer wants to check how strong is my basic concept is. Last question was also on binary search(HARD)
(1 Question)
- Q1. Deep discussion about my all projects. Again asked 1 DSA question (Easy)
(1 Question)
- Q1. This round was basically to tell me that I was selected.
Interview Preparation Tips
Solve leetcode question clear you DSA concepts.
Software Developer Interview Questions & Answers
Sequretek It Solutions
Anonymous
posted on 1 Feb 2024
(1 Question)
- Q1. They will ask you about core java
Interview Preparation Tips
Selected
I applied via Referral and was interviewed before Jan 2023. There were 2 interview rounds.
Normal DSA and sql is more then enough.
(1 Question)
- Q1. Project and subject related questions.
Interview Preparation Tips
Smitha D.M.
Selected
I applied via Recruitment Consulltant and was interviewed in Jul 2023. There were 2 interview rounds.
(1 Question)
- Q1. Java related code snippets based mcq around 30 questions
(2 Questions)
- Q1. Core java concepts and sql and basic coding questions
- Q2. Non prime numbers coding question continue , break difference polymorphism exception handling
Software Engineer Interview Questions & Answers
Sequretek It Solutions
Anonymous
posted on 25 Jan 2023
Selected
I applied via AmbitionBox and was interviewed in Dec 2022. There were 4 interview rounds.
Basic grammer, maths questions,
(2 Questions)
- Q1. Basic questions on programming languages
- Q2. Oops concepts, collections, method overloading, method overriding
(2 Questions)
- Q1. Tell me about your self?
- Ans.
I am a software engineer with experience in developing and maintaining software applications.
Proficient in programming languages such as Java, C++, and Python
Experience in developing web applications using frameworks like Spring and Django
Strong problem-solving and analytical skills
Familiarity with version control systems like Git
Ability to work in a team and collaborate effectively
- Q2. What is your salary expectations?
- Ans.
I am open to discussing salary based on the responsibilities and requirements of the position.
I am flexible and open to negotiation.
I am looking for a competitive salary based on my skills and experience.
I am interested in discussing the overall compensation package, including benefits and bonuses.
I am open to considering other forms of compensation, such as stock options or profit sharing.
I would like to learn more ab...
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Wasserstoff Backend Developer Interview Process
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