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      Deutsche Telekom

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      Senior Software Engineer Interview

      17 Mar 2024
      Anonymous interview candidate
      Gurgaon, Haryana
      No offer
      Positive experience
      Easy interview

      Application

      The process took 1 day. I interviewed at Deutsche Telekom (Gurgaon, Haryana) in Feb 2024

      Interview

      OffLine mode there are 3 round 2 is related to tech and final is related to manageral round.In first and second round they ask quetion form Linked List ,Mysql ,reverse proxy,Tree,BST,Mongo ,redis

      Interview questions [13]

      Question 1

      Delete a node if given value is exist in the linked list?
      Answer question

      Question 2

      Find second highest salary from table?
      Answer question

      Question 3

      How to apply sorting on redis (cache)?
      Answer question

      Question 4

      Add two giving String without using any predefined method?
      Answer question

      Question 5

      Find the longest common substring.
      Answer question

      Question 6

      Difference Between checked uncheked exception?
      Answer question

      Question 7

      Difference between query param, path variable?
      Answer question

      Question 8

      How to implement your own custom exception?
      Answer question

      Question 9

      Implement the controller service dao logic?
      Answer question

      Question 10

      how you manage the session? in microservices
      Answer question

      Question 11

      Atmost primary key in single table? Can we create table in mysql without having primary key
      Answer question

      Question 12

      Candidate key ,composite key ,unique key ,foreign key difference, many to many mapping handling without using third table ?
      Answer question

      Question 13

      Spring security implementation? how does it works ? managers , providers you are using?
      Answer question
      4

      Other Senior Software Engineer interview reviews for Deutsche Telekom

      Senior Software Engineer Interview

      21 Sept 2025
      Anonymous interview candidate
      Budapest
      Declined offer
      Positive experience
      Average interview

      Application

      I applied online. The process took 3 weeks. I interviewed at Deutsche Telekom (Budapest) in Sept 2024

      Interview

      The interview was great from a general virewpoint. At second round I had technical interview, but only the basics. Issue is, there was no clear specification about the tasks, even on the 3rd round. I got to meet the customers, but I thought their request was unfeasible, and the stack (that the customer stated) has also changed compared to the initial agreement.

      Interview questions [1]

      Question 1

      General system design patterns (including Kafka).
      Answer question

      Senior Software Engineer Interview

      11 May 2024
      Anonymous interview candidate
      New Delhi
      No offer
      Negative experience
      Easy interview

      Application

      I applied online. The process took 1 week. I interviewed at Deutsche Telekom (New Delhi) in May 2024

      Interview

      I have applied through Naukri and after some days I got a call from HR. He schedule L1 technical and then managerial round. after got select in both round HR called me to schedule HR round. But I waited in meeting for whole time and meantime I have called HR multiple time but never Responded.

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