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BlackBerry Senior Software Engineer Interview Questions and Answers
BlackBerry Senior Software Engineer Interview Experiences
2 interviews found
Rohitkumar Girase
Selected
I applied via Naukri.com and was interviewed in May 2024. There was 1 interview round.
Code for any 2 c programs
I applied via LinkedIn and was interviewed before Oct 2023. There was 1 interview round.
The discussion was technical regarding the projects, achievements, purpose and scope
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I applied via LinkedIn and was interviewed in Nov 2024. There was 1 interview round.
(2 Questions)
- Q1. Minimum Knight Moves (LC Medium)
- Q2. OS, CN, DB concepts like multithreading, semaphore, tcp vs udp, transaction and ACId properties. Java concepts like stack vs heap(memory), error vs exception. Any 1 Project discussion for 10 mins
Interview Preparation Tips
(2 Questions)
- Q1. Node JS internal
- Q2. Previous project discussion
I applied via Recruitment Consulltant and was interviewed in May 2024. There was 1 interview round.
(2 Questions)
- Q1. Discussion about Projects
- Q2. Design AB framework
- Ans.
AB framework is a system for testing two versions of a software application to determine which performs better.
Define the goals and metrics for comparison
Create two versions of the software with the only difference being the feature being tested
Randomly assign users to either version A or version B
Collect and analyze data on user behavior and performance to determine which version is more effective
Skills evaluated in this interview
Selected
I applied via Naukri.com and was interviewed in Oct 2023. There were 4 interview rounds.
It was a simple coding test.
There was a small coding problem involving oops concepts..
(1 Question)
- Q1. There was a simple System Design problem specifically URLShortener
(1 Question)
- Q1. There was discussion about previous projects
Interview Preparation Tips
I was interviewed before Jul 2023.
45 min round. Similar to Leetcode medium level question.
45 min coding round, 2 question asked
(1 Question)
- Q1. System design of proximity service
- Ans.
Design a system for proximity service
Utilize geolocation data to track user locations
Implement algorithms to calculate proximity between users
Use real-time updates to notify users of nearby contacts
(1 Question)
- Q1. Behavioral questions
Skills evaluated in this interview
I applied via Company Website and was interviewed before May 2023. There were 2 interview rounds.
(1 Question)
- Q1. Introduction about yourself and expectation
(3 Questions)
- Q1. IOS questions and architecture question about modularisation. From resume.
- Q2. Question Asked about memory management
- Q3. Question about modularisation and interface design
Interview Questionnaire
2 Questions
- Q1. Nitofication microservice design.
- Ans.
Notification microservice design involves creating a scalable and reliable system for sending notifications to users.
Use a message queue to handle high volumes of notifications
Implement retry mechanisms to ensure delivery
Allow for customization of notification types and channels
Ensure security and privacy of user data
Monitor and analyze notification performance for optimization
- Q2. Node.js program to merge an array of objects. e.g. a = [{a:1,c:3},{b:4,r:6}], b = [{b:2},{a:4,c:9}], result = [{a:1,b:2,c:3},{a:4,b:4,c:9,r:6}]
Skills evaluated in this interview
Selected
I applied via Referral and was interviewed before Jan 2023. There were 3 interview rounds.
(2 Questions)
- Q1. Rotate matrix by 90 degree
- Ans.
Rotate a matrix by 90 degrees.
Transpose the matrix
Reverse each row of the transposed matrix
- Q2. Longest substring with unique characters
- Ans.
The question asks for finding the longest substring in a given string that contains only unique characters.
Iterate through the string and keep track of the current substring
Use a set to check for duplicate characters
Update the longest substring if a longer one is found
(1 Question)
- Q1. A trie question
Ecommerce hight level design
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Skills evaluated in this interview
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BlackBerry Senior Software Engineer Interview Process
based on 2 interviews
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