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Airtel Africa Lead Engineer Interview Questions and Answers
Airtel Africa Lead Engineer Interview Experiences
1 interview found
Anonymous
I applied via Recruitment Consulltant and was interviewed before Sep 2021. There were 4 interview rounds.
(2 Questions)
- Q1. Spark architecture Yarn Architecture map and reduce functions Python DS/Algo - leetcode easy to medium level.
- Q2. Hive file formats - differences between row and columnar file format
- Ans.
Row and columnar file formats in Hive differ in the way data is stored and accessed.
Row format stores data in a row-by-row manner, while columnar format stores data in a column-by-column manner.
Row format is suitable for OLTP workloads, while columnar format is suitable for OLAP workloads.
Columnar format allows for faster query performance and compression, while row format allows for faster inserts and updates.
Examples...
(2 Questions)
- Q1. System Design and Architecture - design a data pipeline to ingest data from streaming sources
- Ans.
Design a data pipeline to ingest data from streaming sources.
Identify the streaming sources and their data formats
Choose a streaming platform like Apache Kafka or AWS Kinesis
Design the pipeline architecture with data ingestion, processing, and storage components
Ensure scalability, fault-tolerance, and data consistency
Monitor and optimize the pipeline performance
- Q2. CV project discussion - includes data flow, data model, data pipeline. Coverage include - tech stack, programing language, limitations and drawbacks
(1 Question)
- Q1. Director round - fitment - professional and cultural
Interview Preparation Tips
2. remain hands-on on python and pyspark/scala.
3. know your project as Director round is also technical
Skills evaluated in this interview
Top trending discussions
Interview questions from similar companies
I applied via Campus Placement and was interviewed in Dec 2020. There were 3 interview rounds.
Interview Questionnaire
4 Questions
- Q1. What are new technologies you learnt?
- Q2. Which technical books you read?
- Ans.
I have read several technical books on programming languages, algorithms, and software design.
Clean Code by Robert C. Martin
The Pragmatic Programmer by Andrew Hunt and David Thomas
Cracking the Coding Interview by Gayle Laakmann McDowell
Design Patterns: Elements of Reusable Object-Oriented Software by Erich Gamma, Richard Helm, Ralph Johnson, and John Vlissides
- Q3. How could you solve problem of customer without customer care help?
- Ans.
By providing self-service options and resources, such as FAQs and online documentation.
Create a comprehensive FAQ section on the company's website
Develop an online knowledge base with step-by-step guides and troubleshooting tips
Offer live chat support with automated responses and chatbots
Provide video tutorials and instructional videos
Implement a community forum where customers can help each other
- Q4. Any question for me?
Interview Preparation Tips
I applied via Naukri.com and was interviewed before Jun 2020. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. Linux servers questions, past experience tools amd technologies
Interview Preparation Tips
Interview Questionnaire
1 Question
- Q1. 1. difference between applicationContext and beanFactory. 2. questions related to synchronization in multi threading.
I applied via Campus Placement and was interviewed before Jun 2021. There were 4 interview rounds.
Amcat aptitude tests
Gd on online/offline shopping
(1 Question)
- Q1. Basic technical questions scenario based questions
(1 Question)
- Q1. Expectations and basic case study questions
Interview Preparation Tips
Interview Questionnaire
4 Questions
- Q1. Write a C code for printing Febonacci Series upto n elements
- Ans.
C code for printing Fibonacci Series upto n elements
Declare three variables to store the current, previous and next numbers in the series
Initialize the previous and current variables to 0 and 1 respectively
Use a loop to print the next number in the series by adding the previous two numbers
Loop should run n times to print n elements in the series
- Q2. Question related to family background
- Q3. What are your hobbies?
- Q4. What are your strengths and weaknesses?
Interview Preparation Tips
Experience: Questions were from easy to moderate level. No negative marking, so attempt all.
Tips: Keep your mind open and practice aptitude problems on a daily basis.
Round: Group Discussion
Experience: There were 21 students selected out of which two teams of 10 and 11 students were formed. Both the groups were given a topic and each one of us had to express our views.
Tips: Don't get nervous, just speak whatever you think. Don't yell or speak at loudly, just keep calm and put your points forward.
Duration: 20 minutes
Round: Technical Interview
Experience: Apart from the above questions some puzzles and DBMS questions and a few basic C questions were also asked. We were given enough time to think and answer.
Tips: Do not be in a hurry. Think properly what you are going to say, whether it is right or not and then only answer.
Round: HR Interview
Experience: The HR round was a good one. He tried to test my thinking capabilities and reasoning capabilities
Tips: Answer every question honestly.
General Tips: All the four rounds were elimination rounds and the final result was announced based on cumulative performance. So, be patient and give your best.
Skill Tips: Try to answer every properly
Skills: IQ, Basic Coding Skills, Problem Solving Skills
College Name: NIT ALLAHABAD
Motivation: The company visited our college campus. Also, one of my relatives in in Ericsson at a very high post and is quite happy working here.
Skills evaluated in this interview
I appeared for an interview in Mar 2017.
Interview Questionnaire
8 Questions
- Q1. Basics of networking
- Q2. Data structures
- Q3. Sql
- Q4. Introduction
- Q5. Final year project
- Q6. Why should I hire you?
- Ans.
I have the technical skills, experience, and passion to deliver high-quality software solutions.
I have a strong background in programming languages such as Java, Python, and C++.
I have experience working on complex software projects and collaborating with cross-functional teams.
I am passionate about staying up-to-date with the latest technologies and trends in software development.
I am a quick learner and have a strong...
- Q7. Why Ericsson?
- Ans.
Ericsson is a global leader in telecommunications technology with a strong focus on innovation and career development.
Global leader in telecommunications technology
Strong focus on innovation
Opportunities for career development
- Q8. About relocation
Interview Preparation Tips
Experience: The test which I wrote was based on cocubes. quants was easy, one can easily score 50 percent if they refer rs agarwal and logical was easy but it takes more time and verbal was neither easy nor tough. One thing I want to advice try doing verbal first so that u can save time and then go to quant and logical. After the test we got the results out of 160 students 51 cleared the test. I was one among them.
Duration: 45 minutes
Total Questions: 45
Round: Technical Interview
Experience: Keep ur cool in the technical. people are friendly. Think before you answer twice they may ask u puzzles as well. So be prepared for it. Final year project is a must, they are gonna ask u the details how you implement stuffs in your project. After my technical out of 51 students around 30 cleared this round. I was one among them.
Round: HR Interview
Experience: Don't be scared guys. Hr is just a casual one. finally around 15 were selected from my college including me. I am very happy with the result. best of luck guys. Do well!!!
Tips: Keep your cool. stay confident that's all I can tell. Once you clear technical one can easily clear Hr round.
Skills: Communication, Technical Skill
College Name: JSS Academy of Technical Education - JSSATE
I appeared for an interview in Mar 2017.
Interview Questionnaire
5 Questions
- Q1. Related to semiconductors, processors etc. were asked.
- Q2. Strength
- Q3. Weaknesses
- Q4. Hobby
- Q5. If there are 200 fishes in an aquarium. 99% are red. How many fishes have to be removed to make the red fishes 98 % in the aquarium?
- Ans.
To make the red fishes 98%, 50 fishes have to be removed from the aquarium.
Calculate 1% of 200 fishes, which is 2 fishes.
To make the red fishes 98%, subtract 1% (2 fishes) from 99% (198 fishes).
To find the number of fishes to be removed, divide the difference by 1% (2 fishes).
Therefore, 50 fishes have to be removed to make the red fishes 98%.
Interview Preparation Tips
Experience: There were 40 aptitude questions of variable difficulty. More questions revolved around topics like time and work, distance, speed, time, profit loss, age etc.
Tips: A regular and prior preparation will go a long way in determining a good test score.
Use tricks to solve the questions and calculations should be fast.
Duration: 30 minutes
Total Questions: 40
Round: Test
Experience: The questions weren't that tough when it came to programming. An example would be conversion of temperature from Celsius to Fahrenheit and vice versa. This was a question in my paper. So I'm hoping the difficulty would be more or less the same.
Tips: Do certified programming courses. They help you a lot in cracking good jobs.
Duration: 45 minutes
Total Questions: 3
Round: Puzzle Interview
Tips: This can be tough if you can't imagine scenarios and situations. So make sure you inculcate critical problem solving thinking in your everyday life. I feel that's the best way to do things in this round.
Round: Technical Interview
Experience: This was a short interview so not much happened.
Tips: Whatever you do just know your stuff properly.
Round: HR Interview
Experience: It was a simple interview. Basic questions and their basic answers helped me get through it.
Tips: The tip would be to stay positive in your approach while answering the questions
Skills: Technical Skills, Interpersonal Communication, Aptitude
College Name: VIT Vellore
I appeared for an interview in Feb 2017.
Interview Preparation Tips
Experience: It was a simple aptitude test in which around 150 students cleared the test.
Duration: 1 hour
Total Questions: 40
Round: Test
Experience: Three programs were given and we had to write the code in either java ,c or c++ and get the required output.Around 90 students cleared this round.
Duration: 1 hour 30 minutes
Total Questions: 3
College Name: VIT Vellore
I appeared for an interview in Mar 2017.
Interview Questionnaire
5 Questions
- Q1. Related to semiconductors, processors etc. were asked.
- Q2. Strength
- Q3. Weaknesses
- Q4. Hobbies
- Q5. If there are 200 fishes in an aquarium. 99% are red. How many fishes have to be removed to make the red fishes 98 % in the aquarium?
- Ans.
To make the red fishes 98%, 50 fishes have to be removed from the aquarium.
Calculate 1% of 200 fishes to find the number of red fishes.
Subtract the number of red fishes from 200 to find the number of non-red fishes.
Calculate 2% of the total number of fishes to find the desired number of red fishes.
Subtract the desired number of red fishes from the current number of red fishes to find the number of fishes to be removed.
Interview Preparation Tips
Experience: There were 40 aptitude questions of variable difficulty. More questions revolved around topics like time and work, distance, speed, time, profit loss, age etc.
Tips: A regular and prior preparation will go a long way in determining a good test score.
Use tricks to solve the questions and calculations should be fast.
Duration: 30 minutes
Total Questions: 40
Round: Test
Experience: The questions weren't that tough when it came to programming. An example would be conversion of temperature from Celsius to Fahrenheit and vice versa. This was a question in my paper. So I'm hoping the difficulty would be more or less the same.
Tips: Do certified programming courses. They help you a lot in cracking good jobs.
Duration: 45 minutes
Total Questions: 3
Round: Puzzle Interview
Tips: This can be tough if you can't imagine scenarios and situations. So make sure you inculcate critical problem solving thinking in your everyday life. I feel that's the best way to do things in this round.
Round: Technical Interview
Experience: This was a short interview so not much happened.
Tips: Whatever you do just know your stuff properly.
Round: HR Interview
Experience: It was a simple interview. Basic questions and their basic answers helped me get through it.
Tips: The tip would be to stay positive in your approach while answering the questions
Skills: Technical Skill, Interpersonal Communication, Aptitude
College Name: VIT Vellore
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Airtel Africa Lead Engineer Reviews and Ratings
based on 6 reviews
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