Upload Button Icon Add office photos
Engaged Employer

i

This company page is being actively managed by O4S Team. If you also belong to the team, you can get access from here

O4S Verified Tick

Compare button icon Compare button icon Compare

Filter interviews by

O4S Interview Questions and Answers

Updated 18 Mar 2024

O4S Interview Experiences

Popular Designations

3 interviews found

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

Data structures and algorithms (graph, stack)

Round 2 - One-on-one 

(1 Question)

  • Q1. System design round
Round 3 - HR 

(1 Question)

  • Q1. Basic introduction

Software Development Engineer II Interview Questions asked at other Companies

Q1. Given 2 large numeric comma seperated strings. You need to calculate their sum along with maintaining the correct position of commas. Example Test Case - s1 - "123,456,788" s2 - "1" output - "123,456,789" constraints - since the strings can... read more
View answer (1)
Interview experience
3
Average
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed before Jan 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(2 Questions)

  • Q1. Easy DSA question on array
  • Q2. Leaders in array ...
  • Ans. 

    Leaders in array refer to the highest or lowest values in an array.

    • Leaders can be found in both sorted and unsorted arrays.

    • The highest value in an array is called the right leader, while the lowest value is called the left leader.

    • Examples of finding leaders in an array include finding the maximum profit in stock prices or finding the tallest building in a skyline.

  • Answered by AI
Round 3 - Technical 

(2 Questions)

  • Q1. There was only one question
  • Q2. 1. How do process a big CSV file and serve data to UI without storing in db
  • Ans. 

    Process big CSV file and serve data to UI without storing in db

    • Use streaming API to read CSV file in chunks

    • Transform data into JSON format

    • Serve JSON data to UI using REST API

    • Use pagination to limit the amount of data sent to UI

    • Cache data in memory to improve performance

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Interview questions depends on induasual interviewer

Skills evaluated in this interview

Software Development Engineer Interview Questions asked at other Companies

Q1. Given an acyclic graph of a city where each edge represents a road in the city and each vertex represents an crossing. Write an algo to find out the minimum number of vertices at which a policemen will be kept so that all the roads are cove... read more
View answer (2)
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed before Feb 2023. There was 1 interview round.

Round 1 - One-on-one 

(1 Question)

  • Q1. Generic Questions related to supply chain and how to manage customers.

Business Analyst Interview Questions asked at other Companies

Q1. You have 10 boxes of balls (each ball weighing exactly10 gm) with one box with defective balls (each one of the defective balls weigh 9 gm). You are given an electronic weighing machine and only one chance at it. How will you find out which... read more
View answer (9)

Interview questions from similar companies

I applied via Naukri.com

Interview Questionnaire 

1 Question

  • Q1.  What are Option Strict and Option Explicit? What are all the differences between Dispose and Finalize()? What is the difference between System.String and System.StringBuilder classes? What is Delegate? ...
  • Ans. 

    Answers to common interview questions for Software Engineer position

    • Option Strict and Option Explicit are compiler directives in VB.NET

    • Dispose() is used to release unmanaged resources while Finalize() is used for garbage collection

    • System.String is immutable while System.StringBuilder is mutable

    • Delegate is a type that represents a reference to a method

    • Value types store data directly while reference types store a referen...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - selection process-
1st round-online test(prpare all kind of logical, verbal, and .net related questions)
2nd round- technical round(prepare all .net interview questions,sql server questions, winforms, web api)
3rd round- hr discussion
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed before Sep 2023. There were 2 interview rounds.

Round 1 - Coding Test 

Dsa. , oops and basics of database management

Round 2 - Technical 

(2 Questions)

  • Q1. System design questions basics
  • Q2. Hiring managers questions
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

It was a live coding round where expectation was to come up with a framework in Java from Scratch

Round 2 - Technical 

(1 Question)

  • Q1. It was a DS/Algo Round
Round 3 - Design R 

(1 Question)

  • Q1. Design Round in HLD
  • Ans. 

    Design Round in HLD involves creating a high-level design for a software system.

    • Identify the main components of the system and their interactions

    • Define the architecture of the system including layers, modules, and interfaces

    • Consider scalability, performance, security, and maintainability

    • Use UML diagrams like class diagrams, sequence diagrams, and component diagrams

    • Document the design decisions and rationale

  • 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 Campus Placement and was interviewed before Apr 2023. There were 3 interview rounds.

Round 1 - Coding Test 

Coding questions were easy, not clear about shortlisting process

Round 2 - Technical 

(1 Question)

  • Q1. Basic DSA questions on arrays, linked lists
Round 3 - HR 

(1 Question)

  • Q1. Self introduction
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed before Oct 2022. There were 4 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Coding Test 

There were 3 questions, which I had to do in 2 hours.
the questions were from arrays and Strings

Round 3 - One-on-one 

(1 Question)

  • Q1. They asked me concepts on OOPS and OS, also coding question on strings. all these were basic questions
Round 4 - HR 

(1 Question)

  • Q1. Questions such as where do you see yourself in coming years, interests and hobbies.

Interview Preparation Tips

Topics to prepare for HALODOC Software Engineer interview:
  • OOPS
  • Operating Systems
  • Coding
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Apr 2024. There were 4 interview rounds.

Round 1 - Coding Test 

2 questions, Easy and medium based

Round 2 - Technical 

(1 Question)

  • Q1. Stacks queues and array questions
Round 3 - One-on-one 

(1 Question)

  • Q1. Technical questions on projects
Round 4 - HR 

(1 Question)

  • Q1. How to tackle any uncertain situations? Behavioural questions
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed in Aug 2024. There were 3 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. Let var const difference
  • Ans. 

    var, let, and const are all used to declare variables in JavaScript, but they have different scopes and mutability.

    • var is function-scoped and can be redeclared and reassigned

    • let is block-scoped and can be reassigned but not redeclared

    • const is block-scoped and cannot be reassigned or redeclared

  • Answered by AI
  • Q2. Polyfills of bind method
  • Ans. 

    Polyfills of bind method provide a way to use the bind method in older browsers that do not support it natively.

    • Polyfill code typically checks if the bind method is available and if not, it creates a new function that mimics the behavior of bind.

    • One common polyfill for the bind method is the following: Function.prototype.bind = Function.prototype.bind || function() { // polyfill code here };

    • Polyfills are often used to ...

  • Answered by AI
Round 2 - Technical 

(2 Questions)

  • Q1. Make a search bar in React
  • Ans. 

    Create a search bar component in React for filtering data

    • Create a functional component for the search bar

    • Use state to store the search query

    • Implement a onChange event handler to update the search query

    • Filter the data based on the search query

  • Answered by AI
  • Q2. React js core concepts
Round 3 - HR 

(2 Questions)

  • Q1. How you structure your work
  • Ans. 

    I structure my work by breaking down tasks, setting priorities, creating timelines, and regularly reviewing progress.

    • Break down tasks into smaller, manageable chunks

    • Set priorities based on deadlines and importance

    • Create timelines to track progress and ensure timely completion

    • Regularly review progress and adjust plans as needed

  • Answered by AI
  • Q2. How you make a project from scratch
  • Ans. 

    To make a project from scratch, start by defining requirements, creating a plan, designing the architecture, implementing the code, testing, and deploying.

    • Define project requirements and goals

    • Create a project plan with timelines and milestones

    • Design the architecture of the project, including database schema and system components

    • Implement the code following best practices and coding standards

    • Test the project thoroughly ...

  • Answered by AI

Skills evaluated in this interview

O4S Interview FAQs

How many rounds are there in O4S interview?
O4S interview process usually has 2-3 rounds. The most common rounds in the O4S interview process are Technical, One-on-one Round and Resume Shortlist.
How to prepare for O4S 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 O4S. The most common topics and skills that interviewers at O4S expect are B2B Marketing, Illustrator, Javascript, Lead Generation and Sketching.
What are the top questions asked in O4S interview?

Some of the top questions asked at the O4S interview -

  1. 1. How do process a big CSV file and serve data to UI without storing in...read more
  2. Leaders in array ...read more
  3. Generic Questions related to supply chain and how to manage custome...read more

Tell us how to improve this page.

O4S Interview Process

based on 3 interviews

Interview experience

3.7
  
Good
View more

Interview Questions from Similar Companies

Amazon Interview Questions
4.1
 • 5k Interviews
Flipkart Interview Questions
4.0
 • 1.3k Interviews
Paytm Interview Questions
3.3
 • 753 Interviews
Swiggy Interview Questions
3.8
 • 428 Interviews
BigBasket Interview Questions
3.9
 • 359 Interviews
Zomato Interview Questions
3.8
 • 312 Interviews
Myntra Interview Questions
4.0
 • 215 Interviews
Blinkit Interview Questions
3.7
 • 182 Interviews
Snapdeal Interview Questions
3.8
 • 75 Interviews
Shopclues Interview Questions
3.9
 • 9 Interviews
View all

O4S Reviews and Ratings

based on 14 reviews

3.5/5

Rating in categories

3.2

Skill development

4.0

Work-life balance

3.5

Salary

2.6

Job security

3.6

Company culture

3.1

Promotions

3.6

Work satisfaction

Explore 14 Reviews and Ratings
Associate Business Analyst
7 salaries
unlock blur

₹3.5 L/yr - ₹6.6 L/yr

Product Manager
7 salaries
unlock blur

₹18 L/yr - ₹29.8 L/yr

Senior Software Engineer
7 salaries
unlock blur

₹25 L/yr - ₹53 L/yr

Software Development Engineer II
6 salaries
unlock blur

₹13 L/yr - ₹35 L/yr

Manager Enterprise Sales
6 salaries
unlock blur

₹14.5 L/yr - ₹15.3 L/yr

Explore more salaries
Compare O4S with

Pagarbook

3.6
Compare

Signzy Technologies

2.9
Compare

Xoxoday

3.7
Compare

ITILITE

2.8
Compare
Did you find this page helpful?
Yes No
write
Share an Interview