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Observe.AI Senior Software Developer Interview Questions and Answers
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1 interview found
I applied via Approached by Company and was interviewed in Dec 2024. There were 2 interview rounds.
I give five stars for the coding round. They chose a real-world problem and asked me to solve it during the interview.
(1 Question)
- Q1. This is the HLD round. After couple of reschedules this round happened. This is worst experience.. The interviewer although he is a staff software developer, he has no idea about the answer or solution. I ...
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Senior Software Developer Interview Questions & Answers
Intellect Design Arena
Anonymous
posted on 25 Jun 2024
I applied via Naukri.com and was interviewed in May 2024. There was 1 interview round.
(2 Questions)
- Q1. Angular service
- Q2. Angular routing file code
Manish Singh
I applied via LinkedIn and was interviewed in Mar 2024. There was 1 interview round.
There were 3 question from DSA: 1st and 2nd was from recession and Dp and last one was from graph.
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(1 Question)
- Q1. LRU cache and optimizations
Software Developer Interview Questions & Answers
Zopsmart Technology
Anonymous
posted on 14 Nov 2024
I applied via Campus Placement and was interviewed in Oct 2024. There were 4 interview rounds.
Consist 3 coding questions medium level
(2 Questions)
- Q1. Asked about java concept
- Q2. Sql query basics
(2 Questions)
- Q1. Asked medium to advance level oops java concept
- Q2. Deep discussion over project
(2 Questions)
- Q1. Hard level linked list questions
- Q2. Advanced level sql query
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Selected
I applied via campus placement at Government College of Engineering, Aurangabad and was interviewed in Oct 2024. There were 3 interview rounds.
Mostly questions on logical aptitude
(3 Questions)
- Q1. DSA questions. Reverse word of string, bubble sort, swap two variables without use of third variable
- Q2. OOPs concepts also some questions on project
- Q3. 1 puzzle (refer gfg)
(2 Questions)
- Q1. Why do you want to work at our company?
- Q2. What was the toughest challenge you have ever faced?
I applied via Approached by Company and was interviewed in Aug 2024. There was 1 interview round.
(5 Questions)
- Q1. Discuss the project you are most proud of
- Ans.
Developed a mobile app for tracking personal fitness goals
Used React Native to create a cross-platform app
Implemented features such as goal setting, progress tracking, and workout logging
Integrated with wearable devices like Fitbit for automatic data syncing
- Q2. What are ways to speed up SQL queries? List them in increasing order of complexity?
- Ans.
Ways to speed up SQL queries in increasing order of complexity
Use indexes on columns frequently used in WHERE clauses
Optimize queries by avoiding unnecessary joins and subqueries
Use stored procedures to reduce network traffic and improve performance
Consider denormalizing tables for frequently accessed data
Use query optimization techniques like query caching and query hints
- Q3. Is Redis single-threaded or multi-threaded?
- Ans.
Redis is single-threaded.
Redis is single-threaded, meaning it can only execute one command at a time.
This design choice allows Redis to be extremely fast and efficient for certain use cases.
However, it also means that Redis may not be the best choice for highly concurrent workloads.
- Q4. What sort of data types can be used as keys in Python?
- Ans.
Data types that can be used as keys in Python include strings, integers, floats, tuples, and custom objects.
Strings are commonly used as keys in Python dictionaries.
Integers and floats can also be used as keys.
Tuples can be used as keys if they only contain immutable elements.
Custom objects can be used as keys if they are hashable.
Examples: {'name': 'John'}, {1: 'apple'}, {(1, 2): 'tuple'}
- Q5. What types of indexing exist in SQL?
- Ans.
Types of indexing in SQL include clustered, non-clustered, unique, and composite indexes.
Clustered index physically reorders the table based on the index key
Non-clustered index creates a separate structure for the index
Unique index ensures that all values in the index column are unique
Composite index uses multiple columns for indexing
Skills evaluated in this interview
2 Leetcode Medium questions on hackerrank
(3 Questions)
- Q1. Kadane algorithm based question
- Q2. Leetcode medium
- Q3. Resume based questions
(4 Questions)
- Q1. Probability question math problem
- Q2. Puzzle to solve
- Q3. AI based question
- Q4. 1 question to solve Leetcode medium
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I applied via Campus Placement
(1 Question)
- Q1. A simple linked list question
(1 Question)
- Q1. Detect cycle in undirected graph
Medium to hard questions based on arrays, dp
(2 Questions)
- Q1. Quick sort algorithm
- Ans.
Quick sort is a popular sorting algorithm that uses divide and conquer strategy.
Divides array into smaller sub-arrays based on a pivot element
Recursively sorts sub-arrays
Combines sorted sub-arrays to get final sorted array
Time complexity: O(n log n) on average, O(n^2) worst case
Example: [3, 6, 8, 10, 1, 2, 1] -> [1, 1, 2, 3, 6, 8, 10]
- Q2. Modified rotate a matrix
- Ans.
Rotate a matrix by 90 degrees in place
Transpose the matrix
Reverse each row of the transposed matrix
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