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Deutsche Telekom Software Engineer Interview Questions, Process, and Tips

Updated 1 Jan 2025

Top Deutsche Telekom Software Engineer Interview Questions and Answers

  • Q1. Share your screen, write a API to get the logs of a spring boot application in kibana way, reading from the back.
  • Q2. Find the largest number in an Array without DS and loop in Java 8?
  • Q3. Find all the permutation of the Array?

Deutsche Telekom Software Engineer Interview Experiences

4 interviews found

Software Engineer Interview Questions & Answers

user image akhil mahendru

posted on 1 Jan 2025

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

(2 Questions)

  • Q1. Java8 stream api code
  • Q2. Right view of tree Spring boot situation based question
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
-
Result
Not Selected

I applied via LinkedIn and was interviewed in Apr 2024. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. Find all the permutation of the Array?
  • Ans. 

    Permutations of an array of strings are all possible arrangements of the elements.

    • Use recursion to generate all permutations.

    • Swap elements to create different permutations.

    • Base case: when only one element is left, add the permutation to the result.

    • Example: Array ['A', 'B', 'C'] has permutations ['ABC', 'ACB', 'BAC', 'BCA', 'CBA', 'CAB'].

  • Answered by AI
  • Q2. Find the largest number in an Array without DS and loop in Java 8?
  • Ans. 

    Use Java 8 Stream API to find the largest number in an array of strings without using additional data structures or loops.

    • Convert the array of strings to a stream of integers using map() and parseInt()

    • Use reduce() with Math::max to find the largest number in the stream

  • Answered by AI

Skills evaluated in this interview

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I applied via Referral and was interviewed in Apr 2022. There were 3 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. Implement stack using linkedlist, discussion on singleton design pattern, java output question
Round 2 - Technical 

(1 Question)

  • Q1. Hashmap Implementation, discussion on arraylist,hashmap, concurrent hashmap, one coding question on string , some other basisc java topic discussed
Round 3 - Technical 

(1 Question)

  • Q1. Sample spring boot code from scratch, discussed all used annotations, exceptional handling, spring security, discussion on complexity of some data structure

Interview Preparation Tips

Topics to prepare for Deutsche Telekom Software Engineer interview:
  • Java
  • Spring Boot
  • Data Structures
Interview preparation tips for other job seekers - More focus on basics as my experienced they are checking your basic understanding rather than general definition and practise some real time senarios questions.

I applied via Recruitment Consultant and was interviewed in Mar 2021. There were 3 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. Share your screen, write a API to get the logs of a spring boot application in kibana way, reading from the back.
  • Ans. 

    API to get logs of a Spring Boot app in Kibana way, reading from the back.

    • Use Spring Boot Actuator to expose endpoints for log retrieval

    • Configure Logstash to read logs from the application and send to Elasticsearch

    • Use Kibana to visualize and search logs

    • Implement pagination to read logs from the back

  • Answered by AI
  • Q2. Design ZoomCar
  • Ans. 

    Design a car rental platform like ZoomCar.

    • Create a user-friendly website and mobile app for booking cars.

    • Integrate GPS and other technologies for easy tracking and navigation.

    • Offer a wide range of cars for rent, from hatchbacks to luxury cars.

    • Provide flexible rental options, including hourly, daily, and weekly rentals.

    • Implement a secure payment gateway for hassle-free transactions.

    • Ensure proper maintenance and cleaning...

  • Answered by AI
  • Q3. Microservice architecture, REST, Feign Client, RabbitMQ

Interview Preparation Tips

Interview preparation tips for other job seekers - DS(upto stack/queue is must), Ability to design systems, think for an architecture, Microservice architecture is favourite topic of interviewers nowadays, DB knowledge especially NOSQL

Skills evaluated in this interview

Deutsche Telekom interview questions for designations

 Software Development Engineer II

 (1)

 Senior Test Engineer

 (1)

 Application Support Engineer

 (1)

 IOS Developer

 (1)

 Sdet

 (1)

 Android Developer

 (1)

 Senior Java Developer

 (1)

 Senior IOS Developer

 (1)

Interview questions from similar companies

I applied via Recruitment Consultant and was interviewed before Sep 2018. There were 4 interview rounds.

Interview Questionnaire 

1 Question

  • Q1.  overloading ,inheritance concepts,structures,pointers

Interview Preparation Tips

Interview preparation tips for other job seekers - have good understanding of basics and have expertise on any specific area.

Interview Questionnaire 

2 Questions

  • Q1. Basic Programming Questions, Data structures, SQL queries
  • Q2. This was the most simple one, they simply asked introduce yourself and fine with night shifts.

Interview Preparation Tips

General Tips: I joined HCL as a fresher and got Intervie

Interview Questionnaire 

1 Question

  • Q1. What I know and what I don't know

Interview Preparation Tips

Round: Test
Experience: Aptitude, reasoning, logical, etc. 2 hours

Interview Questionnaire 

2 Questions

  • Q1. C and C++ - technically related stuffs
  • Q2. Communicate and fluency

I was interviewed in Feb 2017.

Interview Preparation Tips

Round: Resume Shortlist
Tips: skill and experience is priority

Round: Test
Experience: subjective questions
Duration: 1 hour

Round: Technical Interview
Experience: c++ questions

Round: HR Interview
Experience: experience and past details

Interview Preparation Tips

Round: Test
Experience: Very easy questions. Practice R.S Agarwal aptitude and verbal books.
Duration matters. Solve the questions fast.Skip the questions if you think you don't know dont kill time on them.

In verbal most of the questions on subject verb agrement-wikipedia links are enough to practice on them.

It's easy just try to solve as many as u can and dont leave the questions unanswered,no negative marking.
Duration: 80 minutes
Total Questions: 120

Skill Tips: Talk in english. Be confident. smile in face.
Skills: c Language, Thinking ability, English fluency
College Name: K L University
Funny Moments: Im very bad in solving puzzles. The HR over there asking puzzles to every one.
It's my turn the 1st question he asked me was what are you bad at?
no 2nd thought I said solving puzzles...In that way he didnt ask me any puzzles. He checked my confidence, english fluency...e.t.c.

Deutsche Telekom Interview FAQs

How many rounds are there in Deutsche Telekom Software Engineer interview?
Deutsche Telekom interview process usually has 1-2 rounds. The most common rounds in the Deutsche Telekom interview process are Technical.
How to prepare for Deutsche Telekom 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 Deutsche Telekom. The most common topics and skills that interviewers at Deutsche Telekom expect are Angularjs, ASP.Net, C#, Bootstrap and CSS.
What are the top questions asked in Deutsche Telekom Software Engineer interview?

Some of the top questions asked at the Deutsche Telekom Software Engineer interview -

  1. Share your screen, write a API to get the logs of a spring boot application in ...read more
  2. Find the largest number in an Array without DS and loop in Java...read more
  3. Find all the permutation of the Arr...read more

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Deutsche Telekom Software Engineer Interview Process

based on 4 interviews

1 Interview rounds

  • Technical Round
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Deutsche Telekom Software Engineer Salary
based on 156 salaries
₹8 L/yr - ₹32 L/yr
130% more than the average Software Engineer Salary in India
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Deutsche Telekom Software Engineer Reviews and Ratings

based on 15 reviews

2.4/5

Rating in categories

2.6

Skill development

3.1

Work-life balance

2.7

Salary

3.0

Job security

2.2

Company culture

2.2

Promotions

2.6

Work satisfaction

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