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Ericsson Senior Software Engineer Interview Questions, Process, and Tips

Updated 24 Mar 2025

Top Ericsson Senior Software Engineer Interview Questions and Answers

Ericsson Senior Software Engineer Interview Experiences

6 interviews found

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

(2 Questions)

  • Q1. Find nth elements from last in linked list
  • Ans. 

    Use two pointers to find the nth element from the end of a linked list.

    • Use two pointers, one moving n steps ahead of the other

    • When the first pointer reaches the end, the second pointer will be at the nth element from the end

  • Answered by AI
  • Q2. Difference between hashmap and concurrent hashmap
  • Ans. 

    HashMap is not thread-safe while ConcurrentHashMap is thread-safe and allows concurrent access.

    • HashMap is not thread-safe and can lead to ConcurrentModificationException if accessed by multiple threads simultaneously.

    • ConcurrentHashMap allows concurrent access by multiple threads without the need for external synchronization.

    • ConcurrentHashMap achieves thread-safety by dividing the map into segments, allowing multiple th...

  • Answered by AI

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I appeared for an interview in Feb 2025, where I was asked the following questions.

  • Q1. Redux and its ecosystem
  • Ans. 

    Redux is a predictable state container for JavaScript apps, often used with React for managing application state.

    • Centralized state management: Redux maintains the application state in a single store, making it easier to manage and debug.

    • Actions and reducers: Actions are payloads of information that send data from the application to the store, while reducers specify how the state changes in response to actions.

    • Middlewar...

  • Answered by AI
  • Q2. JS related Dsa questions

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Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
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 

Coding test data structures and language related

Round 3 - One-on-one 

(1 Question)

  • Q1. Related to resume technology
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 before Jun 2023. There were 3 interview rounds.

Round 1 - Coding Test 

Simple question from python list operations

Round 2 - One-on-one 

(2 Questions)

  • Q1. With Manager regarding what is job about.
  • Q2. What you did in your last project
Round 3 - Technical 

(1 Question)

  • Q1. Project owner about what you are going to do.

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare well from your resume and about your projects you did in past.

Ericsson interview questions for designations

 Senior Embedded Software Engineer

 (1)

 Software Engineer

 (15)

 Senior Software Developer

 (5)

 Associate Software Engineer

 (4)

 Senior Systems Engineer

 (2)

 Senior Devops Engineer

 (2)

 Senior Cloud Engineer

 (2)

 Senior Test Engineer

 (1)

Round 1 - One-on-one 

(1 Question)

  • Q1. Easy and fast going process
  • Ans. 

    Easy and fast going process

    • Define clear goals and objectives

    • Streamline communication channels

    • Implement agile methodologies

    • Automate repetitive tasks

    • Regularly review and optimize processes

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - easy going and quick process. Hassle free and very straight in nature

Interview Questionnaire 

1 Question

  • Q1. Questions asked about products knowledge, roles and responsibilities

Interview Preparation Tips

Round: Manger Round
Experience: Questions asked about products knowledge, roles and responsibilities

Senior Software Engineer Jobs at Ericsson

View all

Interview questions from similar companies

I applied via Naukri.com and was interviewed in Mar 2021. There were 4 interview rounds.

Interview Questionnaire 

7 Questions

  • Q1. What is closure and it's applications.
  • Ans. 

    Closure is a function that has access to variables in its outer scope, even after the outer function has returned.

    • A closure can be used to create private variables and methods in JavaScript.

    • Closures can be used to implement partial application and currying.

    • Event listeners and callbacks often use closures to maintain state between function calls.

    • Closures can be used to create memoized functions that cache their results

  • Answered by AI
  • Q2. What is callbacks hell, promises, observables, asynch await.
  • Ans. 

    Callbacks hell is a situation where nested callbacks make code hard to read and maintain. Promises, observables, and async/await are solutions to this problem.

    • Callbacks hell occurs when there are too many nested callbacks in code.

    • Promises are a way to handle asynchronous operations in JavaScript.

    • Observables are similar to promises but can handle multiple values over time.

    • Async/await is a syntax for writing asynchronous

  • Answered by AI
  • Q3. What is higher order functions. And it's usage.
  • Ans. 

    Higher order functions are functions that take other functions as arguments or return functions as their result.

    • Higher order functions allow for more flexible and reusable code.

    • They can be used for tasks such as filtering, mapping, and reducing arrays.

    • Examples include Array.prototype.map(), Array.prototype.filter(), and Array.prototype.reduce().

  • Answered by AI
  • Q4. What is oops in JavaScript. And difference between functional programming and OOPs.
  • Ans. 

    OOPs in JavaScript is a programming paradigm that uses objects to represent real-world entities. Functional programming is a paradigm that uses functions to perform tasks.

    • OOPs in JavaScript involves creating objects that have properties and methods.

    • Functional programming involves creating functions that take input and produce output without modifying the input.

    • OOPs focuses on encapsulation, inheritance, and polymorphis...

  • Answered by AI
  • Q5. What is event loop and types of tasks in the queue.
  • Ans. 

    Event loop is a mechanism that allows JavaScript to perform non-blocking I/O operations.

    • Event loop is responsible for handling asynchronous callbacks in JavaScript.

    • Tasks in the queue can be either microtasks or macrotasks.

    • Microtasks are executed before macrotasks.

    • Examples of macrotasks include setTimeout, setInterval, and I/O operations.

    • Examples of microtasks include Promise callbacks and mutation observer callbacks.

  • Answered by AI
  • Q6. Output of the code in JavaScript.
  • Ans. 

    Output of the code in JavaScript

    • Need to see the code to determine output

    • Output can vary based on input and logic

    • Can use console.log() to print output

  • Answered by AI
  • Q7. How browser works detailed analysis.
  • Ans. 

    Browsers use rendering engines to interpret HTML, CSS, and JavaScript to display web pages.

    • Browsers use rendering engines to interpret HTML, CSS, and JavaScript.

    • The rendering engine parses the HTML and creates a DOM tree.

    • The rendering engine then applies CSS rules to the DOM tree to create a render tree.

    • The render tree is then laid out to determine the position of each element on the page.

    • Finally, the rendering engine ...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Focus on the basics and deep dive into the topic and try to make a small project out of it.

Skills evaluated in this interview

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

I applied via Naukri.com and was interviewed before Apr 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 

Javascript based questions were asked

Round 3 - Technical 

(1 Question)

  • Q1. Javascript and react based questions asked.
Round 4 - HR 

(1 Question)

  • Q1. Behavioral and situational based questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Please focus on the basic of javascript and ecmascript concept.
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed before Apr 2022. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. Had a level of technical discussion which ended up with the offer letter. Was easy .
  • Q2. Mainly on previous projects
Interview experience
2
Poor
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Approached by Company and was interviewed in Aug 2023. There were 2 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. It was completely on the project worked on using the spring boot. 1)how to handle if the applciation is restarting continuously 2)how to load multiple applccation property file in sequential way 3)how to h...
Round 2 - Technical 

(1 Question)

  • Q1. Project related questions

Interview Preparation Tips

Interview preparation tips for other job seekers - For 5+ years experience better to go through the project bit by bit and even dive in the concepts w.r.t application.Questions related to deployment issue was also asked.

Ericsson Interview FAQs

How many rounds are there in Ericsson Senior Software Engineer interview?
Ericsson interview process usually has 1-2 rounds. The most common rounds in the Ericsson interview process are One-on-one Round, Coding Test and Technical.
How to prepare for Ericsson Senior Software Engineer 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 Ericsson. The most common topics and skills that interviewers at Ericsson expect are HTML, Telecom, microsoft, CRM and PHP.
What are the top questions asked in Ericsson Senior Software Engineer interview?

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

  1. Find nth elements from last in linked l...read more
  2. Difference between hashmap and concurrent hash...read more
  3. easy and fast going proc...read more

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Ericsson Senior Software Engineer Interview Process

based on 4 interviews

Interview experience

4.8
  
Excellent
View more
Join Ericsson Shaping the future one connection at a time.
Ericsson Senior Software Engineer Salary
based on 780 salaries
₹7.3 L/yr - ₹28 L/yr
13% more than the average Senior Software Engineer Salary in India
View more details

Ericsson Senior Software Engineer Reviews and Ratings

based on 75 reviews

4.1/5

Rating in categories

3.6

Skill development

4.4

Work-life balance

3.5

Salary

3.9

Job security

4.1

Company culture

3.1

Promotions

3.7

Work satisfaction

Explore 75 Reviews and Ratings
Senior Software Engineer - 5G Core

Bangalore / Bengaluru

7-11 Yrs

₹ 7.6-18.7 LPA

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