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Airtel Africa Lead Engineer Interview Questions and Answers

Updated 27 Sep 2022

Airtel Africa Lead Engineer Interview Experiences

1 interview found

Lead Engineer Interview Questions & Answers

user image Anonymous

posted on 27 Sep 2022

I applied via Recruitment Consulltant and was interviewed before Sep 2021. 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 - Technical 

(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...

  • Answered by AI
Round 3 - Technical 

(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

  • Answered by AI
  • Q2. CV project discussion - includes data flow, data model, data pipeline. Coverage include - tech stack, programing language, limitations and drawbacks
Round 4 - One-on-one 

(1 Question)

  • Q1. Director round - fitment - professional and cultural

Interview Preparation Tips

Interview preparation tips for other job seekers - 1. Read Spark and Hadoop ecosystem.
2. remain hands-on on python and pyspark/scala.
3. know your project as Director round is also technical

Skills evaluated in this interview

Interview questions from similar companies

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

(2 Questions)

  • Q1. Questions related to coroutines
  • Q2. Questions related to Android Architecture Components

Interview Preparation Tips

Interview preparation tips for other job seekers - Android Basics , Kotlin Basics

Interview Questionnaire 

6 Questions

  • Q1. 1. sort a stack without auxillary space
  • Ans. 

    Sort a stack without auxiliary space

    • Use recursion to pop elements from stack and insert them in sorted order

    • Compare the top element with the next element and swap if necessary

    • Repeat until stack is sorted

  • Answered by AI
  • Q2. 2. design and write production code of thread pool
  • Ans. 

    A thread pool is a group of threads that can be reused to execute multiple tasks concurrently.

    • Define a task interface that encapsulates the work to be done

    • Create a queue to hold tasks

    • Create a fixed number of threads in the pool

    • Each thread should loop indefinitely, taking tasks from the queue and executing them

    • Use synchronization primitives to ensure thread safety

    • Consider using a thread-safe data structure for the task ...

  • Answered by AI
  • Q3. 3. singleton implementation thread safe
  • Q4. Shared and unique ptr implementation
  • Ans. 

    Shared and unique pointer implementation in C++

    • Shared pointers allow multiple pointers to refer to the same object, automatically deleting the object when the last pointer is destroyed.

    • Unique pointers allow only one pointer to refer to an object, automatically deleting the object when the pointer is destroyed.

    • Shared pointers use reference counting to keep track of the number of pointers referring to an object.

    • Unique po...

  • Answered by AI
  • Q5. Given the frequency of three letters 'a' 'b' and 'c'..form the largest string by using a,b, and c provided 3 (a , b or c )cant be together and the possible string should be largest.
  • Ans. 

    Form the largest string using a, b, and c with the condition that 3 (a, b, or c) can't be together.

    • Start with the most frequent letter and alternate with the other two.

    • If there are two letters with the same frequency, start with the one that has the least number of adjacent letters.

    • Example: 'abcabcab' is not valid, but 'abacbac' is valid and larger.

  • Answered by AI
  • Q6. Ex1 ) dict = {'abab' , 'aba', 'xyz', 'xyx'} pattern {'aba'} output {'aba' , 'xyx'} , ex 2) dict = {'abb' , 'abc' , 'xyz', 'xyy'} paatern {'mno'} output {abc , xyz} ...
  • Ans. 

    Code to find strings in a dictionary matching a given pattern

    • Iterate through the dictionary and check if each string matches the pattern

    • Add the matching strings to an output array

    • Return the output array

  • Answered by AI

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Referral and was interviewed in Aug 2024. There was 1 interview round.

Round 1 - HR 

(2 Questions)

  • Q1. About Previous Experience
  • Q2. What Do you Know About TELICOM industry
  • Ans. 

    The TELICOM industry refers to the telecommunications industry, which includes companies that provide communication services through various means such as telephone, internet, and television.

    • TELICOM industry encompasses companies that offer services like telephone, internet, and television communication.

    • Major players in the TELICOM industry include AT&T, Verizon, and Comcast.

    • Technological advancements have led to the g...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Be Practical with Manager and HR, Tell Them Every Things Real Knowledge which you Know, They're very Cooperative, Best Luck 🤞
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. How mpls ping works
  • Ans. 

    MPLS ping is a tool used to test connectivity between two MPLS-enabled devices by sending ICMP echo requests.

    • MPLS ping works by encapsulating ICMP echo requests within MPLS packets.

    • It uses the MPLS label stack to route the packets through the network.

    • The receiving device responds with an ICMP echo reply, allowing the sender to verify connectivity.

    • MPLS ping is commonly used for troubleshooting MPLS networks and verifyin

  • Answered by AI
  • Q2. Why mpls is required
  • Ans. 

    MPLS is required for efficient and reliable data packet forwarding in complex networks.

    • MPLS allows for traffic engineering, prioritization, and quality of service in networks.

    • It provides better performance and reliability compared to traditional IP routing.

    • MPLS is essential for connecting multiple locations in a secure and efficient manner.

    • It simplifies network management and troubleshooting by creating virtual paths f

  • Answered by AI

Skills evaluated in this interview

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

I applied via Walk-in

Round 1 - One-on-one 

(2 Questions)

  • Q1. Tell me about yourself
  • Q2. Why are you joining telecom sector

Interview Preparation Tips

Interview preparation tips for other job seekers - Keep smile don't be nervous attempt all questions
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 - One-on-one 

(4 Questions)

  • Q1. What is ITIL and how it affects us
  • Ans. 

    ITIL stands for Information Technology Infrastructure Library. It is a set of best practices for IT service management.

    • ITIL provides a framework for IT service management to align IT services with the needs of the business.

    • It helps organizations improve efficiency, reduce costs, and provide better customer service.

    • ITIL consists of a series of publications that provide guidance on the provision of quality IT services.

    • Ex...

  • Answered by AI
  • Q2. How you can value add if hired
  • Ans. 

    I can value add by leveraging my expertise in strategic planning, problem-solving, and team leadership to drive successful project outcomes.

    • Developing and implementing strategic plans to achieve project goals

    • Utilizing problem-solving skills to overcome challenges and obstacles

    • Leading and motivating teams to maximize productivity and collaboration

  • Answered by AI
  • Q3. Basic questions on my experience
  • Q4. Reason For leaving current role
Round 3 - Technical 

(1 Question)

  • Q1. Basic questions on networking and why I want to switch from technical role to non technical role

Interview Preparation Tips

Interview preparation tips for other job seekers - Read job description and prepare accordingly with your experience in mind. Also think how you can a value to the company with your experience and knowledge

Skills evaluated in this interview

Interview experience
1
Bad
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(2 Questions)

  • Q1. Face to face interview
  • Q2. How soon you can join

Interview Preparation Tips

Interview preparation tips for other job seekers - Before joining HR will say weekoff is there and festival and government holidays are there but that's is false commitment. It's 24/7 high pressure job you won't get week off and no government holiday. You wont able to give time your family. Think before selecting this company. Because no security in this job. Here no customer satisfaction and job satisfaction and no career growth. Your life will be damaged here. Also to much politics in this company. and sales head ashok reddy before completing one month only he asking to resign.
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Selected Selected

I applied via Referral and was interviewed in Apr 2023. There were 6 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 - Technical 

(2 Questions)

  • Q1. UI Technical interview: 1. Javascript Questions 2. var let const 3. execution context 4. event loop 5. settimeout and set interval 6.hashmap and hash set
  • Q2. Problem on hashmap (need to code) optimization needed
Round 3 - Technical 

(1 Question)

  • Q1. Backend (interview) 1. Sql question 2. given a question need to write a sql 3.convert the that sql question to programming 4. Machine coding
Round 4 - Technical 

(1 Question)

  • Q1. React Js Interview 1. state and props 2. what is virtual dom 3. diffing process 4. does browser understand jsx 5. given a question need to do live coding to create a counter component woth star and sto...
Round 5 - One-on-one 

(2 Questions)

  • Q1. Hiring manager round
  • Q2. Previous experience on projects technical experience in frontend and testing asked about the real world scenarios
Round 6 - HR 

(1 Question)

  • Q1. General HR discussion

Interview Preparation Tips

Interview preparation tips for other job seekers - Get your technical strong and enjoy the interview process and feel free to give your suggestion if you don't know the exact answer they will guide through and take your time to answer
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Referral and was interviewed in Jul 2023. There were 3 interview rounds.

Round 1 - One-on-one 

(2 Questions)

  • Q1. Why want change
  • Q2. When was your bad day
Round 2 - One-on-one 

(1 Question)

  • Q1. HOW TO ACHIEVE TARGATE
  • Ans. 

    To achieve a target, set clear goals, create a plan, communicate effectively, motivate the team, track progress, and make necessary adjustments.

    • Set clear and specific goals that are measurable and achievable

    • Create a detailed plan outlining the steps and resources needed

    • Communicate the goals and plan effectively to the team

    • Motivate and inspire the team to work towards the target

    • Track progress regularly and make adjustme...

  • Answered by AI
Round 3 - One-on-one 

(1 Question)

  • Q1. How to manage team who not understand you are boss

Airtel Africa Interview FAQs

How many rounds are there in Airtel Africa Lead Engineer interview?
Airtel Africa interview process usually has 4 rounds. The most common rounds in the Airtel Africa interview process are Technical, Resume Shortlist and One-on-one Round.
What are the top questions asked in Airtel Africa Lead Engineer interview?

Some of the top questions asked at the Airtel Africa Lead Engineer interview -

  1. Hive file formats - differences between row and columnar file for...read more
  2. System Design and Architecture - design a data pipeline to ingest data from str...read more
  3. CV project discussion - includes data flow, data model, data pipeline. Coverage...read more

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Airtel Africa Lead Engineer Salary
based on 18 salaries
₹27 L/yr - ₹36 L/yr
90% more than the average Lead Engineer Salary in India
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Airtel Africa Lead Engineer Reviews and Ratings

based on 6 reviews

2.0/5

Rating in categories

1.4

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2.0

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2.2

Salary

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1.4

Company culture

1.6

Promotions

1.4

Work satisfaction

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