Skip to contentSkip to footer
  • Community
  • Jobs
  • Companies
  • Salaries
  • For employers
      Notifications

      Loading...

      Elevate your career

      Discover your earning potential, land dream jobs, and share work-life insights anonymously.

      employer cover photo
      employer logo
      employer logo

      BT Group

      Engaged employer

      About
      Reviews
      Pay and benefits
      Jobs
      Interviews
      Interviews
      Related searches: BT Group reviews | BT Group jobs | BT Group salaries | BT Group benefits | BT Group conversations
      BT Group interviewsBT Group Senior Java Developer interviewsBT Group interview


      Glassdoor

      • About / Press
      • Awards
      • Blog
      • Research
      • Contact Us
      • Guides

      Employers

      • Free Employer Account
      • Employer Centre
      • Employers Blog

      Information

      • Help
      • Guidelines
      • Terms of Use
      • Privacy and Ad Choices
      • Do Not Sell Or Share My Information
      • Cookie Consent Tool
      • Security

      Work With Us

      • Advertisers
      • Careers
      Download the App

      • Browse by:
      • Companies
      • Jobs
      • Locations
      • Communities
      • Recent posts

      Copyright © 2008-2026. Glassdoor LLC. "Glassdoor," "Worklife Pro," "Bowls" and logo are proprietary trademarks of Glassdoor LLC.

      Company Bowl sample

      Want the inside scoop on your own company?

      Check out your Company Bowl for anonymous work chats.

      Bowls

      Get actionable career advice tailored to you by joining more bowls.

      Followed companies

      Stay ahead in opportunities and insider tips by following your dream companies.

      Job searches

      Get personalised job recommendations and updates by starting your searches.

      Senior Java Developer Interview

      9 Mar 2016
      Anonymous interview candidate
      Bengaluru

      Other Senior Java Developer interview reviews for BT Group

      Senior Java Developer Interview

      20 Nov 2018
      Anonymous employee
      Bengaluru
      Accepted offer
      Declined offer
      Negative experience
      Average interview

      Application

      I applied through a staffing agency. The process took 1+ week. I interviewed at BT Group (Bengaluru) in Dec 2015

      Interview

      Got a call from recruitment agency and they scheduled it for a weekday. There were 5 rounds. 1: Onsite online test, 2: F2F Technical, 3: F2F Technical, 4: F2F Managerial, 5: HR All the rounds completed on the same day and the HR also confirmed that I got selected. HR told that he needed to discuss with some other guys to tell if he would be able to offer what I was expecting and they were very unprofessional after this stage. I had to call them repeatedly to check if they would be able to make it. If it was difficult for them atleast they should have the decency to inform. Also if they can meet the expectation, they should not call the candidates in the first place and waste their time.

      Interview questions [1]

      Question 1

      Java- OOPS, mutithreading, collections, strings, serialization DS- Tree, LinkedList DB- Some sql queries
      Answer question
      1
      Positive experience
      Average interview

      Application

      I applied through a staffing agency. The process took 1 week. I interviewed at BT Group (Bengaluru) in June 2016

      Interview

      1. Online test includes java and aptitude questions, maximum Java questions to be answered and only two or three aptitude questions needs to attempted 2. Two round of technical rounds 3. Manager round interview 4.HR discussion

      Interview questions [1]

      Question 1

      Java deep knowledge check and framework related questions
      Answer question
      1

      Senior Java Developer Interview

      8 June 2016
      Anonymous interview candidate
      Bengaluru
      No offer
      Neutral experience
      Difficult interview

      Application

      I applied through a staffing agency. The process took 1 day. I interviewed at BT Group (Bengaluru) in May 2016

      Interview

      Interview was average. Questions were a little tricky. You need to have your fundamentals clear. Regarding hike, they won't give you more than 30%. Better to clear this up before going for the interview.

      Interview questions [2]

      Question 1

      1) There is a class in which i declare 2 instance variables. A map and a string. Initialize both. Then, pass both of them to a method and change the values. What will be the value of map and string before and after calling the method. 2) Dynamic Polymorphism. All the variants(Object of child, reference of parent etc etc). If the methods are static , how does DP work? 3) Typecasting. How does it work? 4) Immutable classes. How do you initialize it? 5) When do you prefer Interfaces and when abstract class. Prepare well for this question. They confuse you a lot. 6) Overloading with different arguments. 7) Instantiating an abstract class. There is an abstract class and other normal class extends the abstract class. In constructor it calls , super(this). What happens?
      Answer question

      Question 2

      Coding questions : 1) Find missing number in an array. Ex- 1,2,3,5. "4" is missing here
      1 Answer
      4