Ericsson Interview Process
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About CompanyRecruitment ProcessQuestions Asked in EricssonWhere to Apply ?About Company : Ericsson (Telefonaktiebolaget L. M. Ericsson) is a multinational networking and ...
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About Company Recruitment Process Questions Asked in Ericsson Where to Apply ? About Company : Ericsson (Telefonaktiebolaget L. M. Ericsson) is a multinational networking and telecommunications equipment and services company headquartered in Stockholm, Sweden. The company offers services, software and infrastructure in information and communications technology (ICT) for telecommunications operators, traditional telecommunications and Internet Protocol (IP) networking equipment, mobile and fixed broadband, operations and business support services, cable television, IPTV, video systems, and an extensive services operation. Ericsson is ranked 419th overall in the FORTUNE 500 Companies ranking. Ericsson is ranked 6th overall in the FORTUNE Most Admired Companies ranking. Ericsson was awarded for the "2015 Global Mobile Award" in
2015. Recruitment Process : Ericsson conducts 3 rounds to select freshers as Graduate Engineer Trainee in their organisation. Online test Group discussion Technical Round HR Round Academic Criteria : 60 percent or above in B.Tech, Class X and XII. No backlogs at the time of interview Online Round : The Online round consists of two major sections namely General Aptitude Test and Verbal Ability Test. General Aptitude Test, has quantitative ability and logical reasoning parts. Generally there is no negative marking in this round. And the coding Test contains 3 coding problems. This is paper pen based round. Group discussion : Group discussion is the
next round in their recruitment process but many times they don't conduct this.
Technical Round The students who clear the earlier round/s are called for technical interview. There is no hard & fast rule for which questions will be asked in this round, you can expect questions on any topic depending on the panel. To clear this round you should be clear with your basics. Students from branches other than CS should prepare for other two subjects related to their branch. You should be prepared with Data structures and Algorithms, DBMS, Operating System, Networking, OOPs concepts and a programming language of your choice. CS students will be expected to write codes in the interview. Students with ECE background should prepare all the communications subjects well (e.g telecom, networking,analog and digital communication,mobile comm). You may also be asked questions from data structures, algorithms, sql. You may also be asked puzzles in this round. To be prepared for puzzles you can practice from our Puzzles section .
HR Round They ask HR questions like : 1. tell me about Yourself 2. about family 2. location preference 3. why should we recruit you? 4. are you sure you will be able to sustain yourself at Ericsson? 5. questions form resume
About This Question
This is a reported interview question from a ericsson interview for a data science role (new grad level) during the oa round reported in 2025.
It covers the following topics: Sql, Os .
Difficulty rating: Hard
More Ericsson Interview Questions
About Ericsson Interview Reports
This question was reported by a candidate who interviewed at Ericsson. LeakCode aggregates interview reports from 10+ sources, including 1Point3Acres, Glassdoor, LeetCode Discuss, Blind, Reddit, Indeed, and Nowcoder. Each report is translated where necessary, deduplicated against existing entries, and tagged by company, role, round type, and reporting date.
Use this question as one calibration data point, not a memorization target. Companies typically rotate their question pools every 2-4 months; the exact wording of a 2024 question may differ from what you encounter today. The underlying pattern, difficulty level, and follow-up depth at Ericsson are the higher-signal extractions to take from this report.
For broader preparation context, the Ericsson interview process typically includes a recruiter screen, one or two technical phone screens, and a 4-5 round on-site loop covering coding, system design (at L4+ levels), and behavioral. Reports tagged on LeakCode show the round-by-round distribution and typical difficulty calibration. To browse questions filtered by round type and seniority, use the company hub linked above.
How To Practice This Type of Question
Solve similar problems on LeetCode under timed conditions (25-35 minutes per medium difficulty). The goal is pattern recognition: recognize the underlying technique (sliding window, two-pointer, BFS, memoized recursion, etc.) within 60-90 seconds of reading. Strong candidates verbalize their hypothesis out loud before coding, then iterate based on feedback. Weak candidates dive into implementation immediately, lose time on the wrong approach, and run out of time for follow-ups.
Companies update their question pools every 2-4 months. The exact wording of any given question may have been retired by the time you interview. Focus your prep on the pattern, not the specific problem. The patterns that appear in Ericsson reports consistently are the ones worth investing in; one-off niche problems are not.
During Your Ericsson Round
Apply the standard interview round template: clarify requirements (2-3 minutes), state your approach out loud and confirm direction with the interviewer (3-5 minutes), code with narration (15-25 minutes), test with concrete examples including edge cases (5 minutes), discuss optimization or trade-offs if time permits (5 minutes). This template is universally accepted across FAANG and adjacent companies; deviating from it produces weaker interviewer feedback signal.
The single most predictive failure mode in Ericsson reports tagged "no hire": not asking clarifying questions. Interviewers are explicitly trained to weight this. Strong candidates ask 3-5 clarifying questions even on problems that look obvious; weak candidates dive into code immediately. The clarifying-question check is often the first signal recorded in the interviewer's written notes.