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Ericsson Software Developer Interview Questions and Answers for Experienced

Updated 28 Mar 2025

Ericsson Software Developer Interview Experiences for Experienced

3 interviews found

I applied via Approached by Company

Round 1 - Technical 

(1 Question)

  • Q1. Questions related to Pivoting, Joins, DeadLocks etc.
Round 2 - Technical 

(1 Question)

  • Q1. Questions related to Performance Improvements, Best Practices in SQL, ETL Processing, Scenario related questions
Round 3 - One-on-one 

(1 Question)

  • Q1. Non Technical Interview with Line Manager. Personal Info , Previous employment related details

Interview Preparation Tips

Interview preparation tips for other job seekers - Make sure to get all details of your Job Role.
Interview experience
4
Good
Difficulty level
Easy
Process Duration
4-6 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed before Sep 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Don’t add your photo or details such as gender, age, and address in your resume. These details do not add any value.
View all tips
Round 2 - Aptitude Test 

Easy questions from quant, english and reasoning

Round 3 - Technical 

(2 Questions)

  • Q1. Asked about call flow
  • Q2. Explain 3g, 4g, 5g architecture
  • Ans. 

    3G, 4G, and 5G architectures refer to the generations of mobile network technology, each offering faster speeds and improved capabilities.

    • 3G (Third Generation) introduced mobile data services like internet browsing and video calling.

    • 4G (Fourth Generation) provided faster speeds for data transmission, enabling services like HD video streaming and online gaming.

    • 5G (Fifth Generation) offers even faster speeds, lower laten...

  • Answered by AI

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I applied via Recruitment Consultant and was interviewed in Sep 2020. There were 3 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. Regarding SAP Data Services
  • Q2. Designer tool, Project, wf, df, transforms, types of transforms, performance optimisation techniques etc
  • Q3. Hana

Interview Preparation Tips

Interview preparation tips for other job seekers - Interview was good. interviewer was friendly and wherever I couldnt answer his questions he answered them and made me understand.

Software Developer Jobs at Ericsson

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Interview questions from similar companies

Interview Questionnaire 

7 Questions

  • Q1. Array sorting – Bubble sort and its complexity?
  • Ans. 

    Bubble sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements and swaps them if they are in the wrong order.

    • Bubble sort has a worst-case and average complexity of O(n^2), where n is the number of items being sorted.

    • It is not efficient for large lists and is generally used for educational purposes.

    • Example: Sorting an array of strings in alphabetical order using bubble sort.

  • Answered by AI
  • Q2. Various storage classes in C? Difference between auto, static?
  • Ans. 

    Auto and static are two storage classes in C. Auto variables are local to a function while static variables retain their value between function calls.

    • Auto variables are created when a function is called and destroyed when the function ends

    • Static variables are initialized only once and retain their value between function calls

    • Auto variables have garbage value if not initialized while static variables are initialized to

  • Answered by AI
  • Q3. Questions on Pointers, memory management, scope of variables, etc were asked
  • Q4. What are your strengths and weaknesses?
  • Ans. 

    My strengths include problem-solving, attention to detail, and adaptability. My weaknesses include public speaking and impatience.

    • Strengths: problem-solving, attention to detail, adaptability

    • Weaknesses: public speaking, impatience

  • Answered by AI
  • Q5. Where do you see yourself 5 years from now?
  • Ans. 

    In 5 years, I see myself as a senior software developer leading a team of developers to create innovative solutions.

    • Leading a team of developers to create innovative solutions

    • Continuing to learn and stay up-to-date with the latest technologies

    • Contributing to the growth and success of the company

    • Mentoring and coaching junior developers

    • Taking on more responsibilities and challenges

  • Answered by AI
  • Q6. What are your interests?
  • Ans. 

    I am interested in exploring new technologies and learning new programming languages.

    • Exploring new technologies

    • Learning new programming languages

    • Attending tech conferences and meetups

    • Contributing to open source projects

  • Answered by AI
  • Q7. Are you ready to relocate?
  • Ans. 

    Yes, I am open to relocation for the right opportunity.

    • I am willing to relocate for the right job opportunity

    • I am open to exploring new cities and cultures

    • I am willing to consider relocation assistance

    • I am excited about the prospect of working in a new environment

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: The written test had 75 questions and we were allotted 80 minutes for the same.There were four sections: Verbal, Analytical, Attention to Detail and Technical (C and Data Structures).First, there was the verbal section. Basically, questions on articles, synonyms and antonyms were asked. Two passages were also given and related questions were asked. The analytical section included questions from quant (set theory, data sufficiency, cubes,etc.) and Logical Reasoning.
The third section was the easiest and did not require any special preparation. From a group of patterns, we had to determine if they were alike or different.
The fourth was the technical section and had 5 questions each from C and DS. This was the toughest section.Time management is absolutely important. There were sectional cutoffs and so we had to clear each section.

Round: Technical Interview
Experience: It was the PI round. First, we had the technical interview. Various questions on C and Data Structures were asked.Next, we had the HR interview. Here, the usual questions were asked. Some of them were:

Round: HR Interview
Experience: Also, questions from what I had written in my CV were asked.On the whole, the interview went quite well. And finally, I was selected.

Skills: Algorithm, C, C++
College Name: NIT PATNA

Skills evaluated in this interview

Interview Questionnaire 

8 Questions

  • Q1. Basic coding question from C, Data Structures and DBMS
  • Q2. Questions from java and C++ (as it was mentioned in the resume)
  • Q3. The main point of concentration was projects and training
  • Q4. Some people were also asked questions related to data communication and basic electronics
  • Q5. Questions like ‘Tell me about yourself’. (Try to create a good impression)
  • Q6. Questions on your personality. Show confidence while answering. The HR might try to oppose what you say and see how you react
  • Q7. Standard puzzles?
  • Q8. Questions like, ‘Why do you want to join Verizon?’, ‘Why should we hire you?’

Interview Preparation Tips

Round: Test
Experience: Consisted of Quantitative aptitude, Logical reasoning, Data Interpretation and English.(Time management is important)

Skills: C, C++, Data structure, Algorithm
College Name: na

Interview Questionnaire 

10 Questions

  • Q1. All project related questions .(He found some fault and asked to remove it)?
  • Q2. Why do we need garbage collection and how it is done in JAVA ?
  • Ans. 

    Garbage collection is necessary to free up memory occupied by unused objects. Java uses automatic garbage collection.

    • Garbage collection helps prevent memory leaks and improves performance.

    • Java uses a mark-and-sweep algorithm to identify and remove unused objects.

    • The JVM periodically checks for unused objects and frees up memory occupied by them.

    • Developers can also manually trigger garbage collection using System.gc() m...

  • Answered by AI
  • Q3. Difference between TCP and UDP ?
  • Ans. 

    TCP is a connection-oriented protocol while UDP is connectionless.

    • TCP provides reliable data transfer while UDP does not guarantee reliability.

    • TCP uses flow control and congestion control while UDP does not.

    • TCP is slower than UDP due to the overhead of establishing and maintaining a connection.

    • UDP is faster than TCP for applications that can tolerate data loss such as video streaming or online gaming.

  • Answered by AI
  • Q4. In which scenario do we need UDP ?
  • Ans. 

    UDP is used in scenarios where speed is more important than reliability, such as online gaming and video streaming.

    • UDP is a connectionless protocol that does not guarantee delivery of packets

    • It is faster than TCP because it does not have to establish a connection before sending data

    • UDP is commonly used in online gaming, video streaming, and VoIP applications

    • It is also used for broadcasting and multicasting data to mult

  • Answered by AI
  • Q5. Discussion on Hashmap , Collision function , heap data structure
  • Q6. Two puzzles a. Given a bar , cut it twice and pay for 7 days?
  • Q7. B. three ants are running on edges of a equilateral triangle with same speed. What is prob that dey will never meet?
  • Ans. 

    The probability that three ants running on the edges of an equilateral triangle will never meet is 1/3.

    • The ants will never meet if they all move in the same direction (clockwise or counterclockwise) at the same speed.

    • The probability of this happening is 1/3, as each ant has two possible directions to choose from.

    • Example: If one ant starts moving clockwise, the other two ants must also move clockwise to never meet.

  • Answered by AI
  • Q8. Tell me about yourself ?
  • Ans. 

    I am a software developer with experience in Java and Python.

    • I have a Bachelor's degree in Computer Science.

    • I have worked on various projects involving web development and data analysis.

    • I am proficient in Java and Python programming languages.

    • I am a quick learner and enjoy working in a team environment.

  • Answered by AI
  • Q9. Where do you see yourself in 5 yrs ?
  • Ans. 

    In 5 years, I see myself as a senior software developer leading a team of developers to create innovative solutions.

    • Leading a team of developers

    • Creating innovative solutions

    • Continuing to learn and grow as a developer

    • Contributing to the success of the company

    • Building strong relationships with colleagues and clients

  • Answered by AI
  • Q10. Your strengths and asked to justify it (Jitni bakar kr skte ho kr do ) ?

Interview Preparation Tips

Round: Group Discussion
Experience: Relevance of technology

Round: Technical Interview
Experience: 1. All project related questions .(He found some fault and asked to remove it)?
2. Why do we need garbage collection and how it is done in JAVA ?
3. Difference between TCP and UDP ?
4. In which scenario do we need UDP ?
5. Discussion on Hashmap , Collision function , heap data structure
6. Two puzzles
a. Given a bar , cut it twice and pay for 7 days?
b. three ants are running on edges of a equilateral triangle with same speed. What is prob that dey will never meet?

Round: HR Interview
Experience: 1. Tell me about yourself ?
2. Where do you see yourself in 5 yrs ?
3. Your strengths and asked to justify it (Jitni bakar kr skte ho kr do ) ?

College Name: NA

Skills evaluated in this interview

I applied via Campus Placement and was interviewed before Apr 2020. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. Basic java questions and a few easy to medium leetcode.

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare from leetcode and language according to the profile.

I applied via Campus Placement and was interviewed before Aug 2021. There were 2 interview rounds.

Round 1 - Aptitude Test 

Mcq based on language

Round 2 - One-on-one 

(1 Question)

  • Q1. Do you know STL. Find loop in linked list.
  • Ans. 

    STL knowledge and finding loop in linked list

    • STL (Standard Template Library) is a C++ library that provides containers, algorithms, and iterators.

    • To find a loop in a linked list, we can use Floyd's cycle-finding algorithm.

    • In this algorithm, we use two pointers, one moving at a slower pace and the other at a faster pace.

    • If there is a loop in the linked list, the faster pointer will eventually catch up to the slower poin...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Have basic DSA and OOPs understanding. Questions are not tough. Basic knowledge is enough.

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
Selected Selected
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 - Aptitude Test 

It had 3 rounds with logical aptitude, analytical aptitude and english

Round 3 - One-on-one 

(2 Questions)

  • Q1. Mostly personal introduction, skills, projects and interests
  • Q2. A couple of basic questions from any preferred coding language
Round 4 - HR 

(2 Questions)

  • Q1. Can you introduce yourself
  • Ans. 

    I am a software developer with expertise in various programming languages and frameworks.

    • Proficient in Java, C++, and Python

    • Experienced in developing web applications using HTML, CSS, and JavaScript

    • Familiar with agile development methodologies and version control systems like Git

    • Strong problem-solving and analytical skills

    • Excellent communication and teamwork abilities

  • Answered by AI
  • Q2. Are you a Indian Citizen and similar questions

Interview Preparation Tips

Interview preparation tips for other job seekers - just be confident and have good speaking skills and strong basics in atleast one programming language.
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Campus Placement and was interviewed in Oct 2023. There were 4 interview rounds.

Round 1 - Aptitude Test 

Test had 2 sections..first section had 3 subsections with quants,verbal and logicals.2nd section is an English writing skill round where they give u a topic and u have to write ur views on it more than 200 words

Round 2 - Group Discussion 

Gd has the basic rules..they give a topic and u have to discuss on that

Round 3 - Technical 

(1 Question)

  • Q1. Hr asks you questions on your project,the programming language ur strong in and may be few code solving questions
Round 4 - HR 

(1 Question)

  • Q1. HR round tests your flexibility and adaptability skills.

Interview Preparation Tips

Interview preparation tips for other job seekers - Be confident with your answers. Make yourself comfortable before sitting for any of the rounds. Build a good rapport with your hr. If you don't know the answer be open..Say you don't know and you will learn in later. All the best!

Ericsson Interview FAQs

How many rounds are there in Ericsson Software Developer interview for experienced candidates?
Ericsson interview process for experienced candidates usually has 3 rounds. The most common rounds in the Ericsson interview process for experienced candidates are Technical, One-on-one Round and Resume Shortlist.
How to prepare for Ericsson Software Developer interview for experienced candidates?
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, CRM, microsoft, PHP and Telecom.
What are the top questions asked in Ericsson Software Developer interview for experienced candidates?

Some of the top questions asked at the Ericsson Software Developer interview for experienced candidates -

  1. Explain 3g, 4g, 5g architect...read more
  2. I was asked about my favorite subject, opted computer networks. So, was asked a...read more
  3. Many questions were asked about OOPs concepts like virtual function, multiple i...read more

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Ericsson Software Developer Interview Process for Experienced

based on 1 interview

Interview experience

4
  
Good
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