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OnGrid Senior Software Engineer Interview Questions and Answers
OnGrid Senior Software Engineer Interview Experiences
1 interview found
Anonymous
I applied via Job Portal and was interviewed in Oct 2023. There were 4 interview rounds.
(2 Questions)
- Q1. Dsa + technical basics
- Q2. String zigzag pattern
(2 Questions)
- Q1. Missing number from array containing 1 to n numbers
- Ans.
Find the missing number from an array containing 1 to n numbers.
Iterate through the array and calculate the sum of all numbers from 1 to n.
Calculate the sum of all numbers in the given array.
Subtract the sum of array from the sum of 1 to n to find the missing number.
- Q2. Db basics, spring boot
(2 Questions)
- Q1. Design a url shortner
- Ans.
A URL shortener service that generates short aliases for long URLs
Generate a unique short code for each long URL
Store the mapping of short code to long URL in a database
Redirect users from short URL to original long URL
- Q2. Project explanation
(1 Question)
- Q1. No questions asked apart from salary expectations
Interview Preparation Tips
Skills evaluated in this interview
Interview questions from similar companies
Interview Questionnaire
2 Questions
- Q1. I interviewed for Qlikview Team, So most questions were regarding qlikview.
- Q2. Some questions were regarding SQL also.
I applied via Naukri.com and was interviewed in Jul 2024. There were 2 interview rounds.
2 questions - 1 was on map and other on graph
(1 Question)
- Q1. Elevator system design
- Ans.
Designing an elevator system involves considering factors like capacity, speed, efficiency, and safety.
Consider the number of floors in the building and the expected traffic flow to determine the number of elevators needed.
Choose between different elevator types such as hydraulic, traction, or machine-room-less based on building requirements.
Implement a control system to optimize elevator movement and reduce wait times...
Skills evaluated in this interview
(3 Questions)
- Q1. LLD of bookmyshow
- Q2. Concurrency Handling
- Q3. Race conditions
Interview Preparation Tips
I applied via Approached by Company and was interviewed in Aug 2023. There were 3 interview rounds.
Interviewer asked two coding question medium level
(1 Question)
- Q1. I were asked to design parking lot Basically focusing on class diagram and how candidate is thinking about entities and design pattern
(1 Question)
- Q1. This is also LLD round interviewer asked me to design book my show How freezing the seats work? In two cases if using sql or not using any database just using cache of application
Interview Preparation Tips
- System Design
- DSA
- LLD
- HLD
For system design learn basic concept from internet then try to use that concept in real life use cases like I used bla bla car once so I tried to design this app
I applied via Job Portal and was interviewed in Jun 2024. There were 2 interview rounds.
3Sum, target sum backtracking quesion, leetcode medium question
(2 Questions)
- Q1. Gas station leetcode
- Q2. Dba differnce/explain mysql or nosql databse
- Ans.
MySQL is a relational database management system, while NoSQL databases are non-relational databases.
MySQL is a traditional relational database that uses tables to store data and SQL for querying.
NoSQL databases are non-relational and can be document-based, key-value pairs, wide-column stores, or graph databases.
MySQL is ACID-compliant and suitable for complex queries and transactions.
NoSQL databases are often used for...
Skills evaluated in this interview
Selected
I applied via Approached by Company and was interviewed in Dec 2022. There were 5 interview rounds.
(1 Question)
- Q1. Based on core concepts of JavaScript and React fundamentals.
(1 Question)
- Q1. Advance topics of React and JavaScript and easy and medium level of DS algo
(1 Question)
- Q1. More like technical discussion on services that helps them to manage their product and problem solving if discussion not go long.
(1 Question)
- Q1. Compensation and others formalities
Interview Preparation Tips
I applied via Referral and was interviewed in Aug 2022. There were 4 interview rounds.
(1 Question)
- Q1. It'll be to build a react custom component
(1 Question)
- Q1. React and javascript
(1 Question)
- Q1. Managerial round was about your career, learnings, projects and questions around that
Interview Preparation Tips
Selected
I applied via Referral and was interviewed in Mar 2024. There were 3 interview rounds.
A small app was to be built using recycler view and consuming a given api.
(2 Questions)
- Q1. Activity lifycycle
- Q2. Jetpack compose
(2 Questions)
- Q1. Why are you leaving the current org ?
- Ans.
Seeking new challenges and growth opportunities.
Looking for new challenges and opportunities for growth.
Interested in working with new technologies and tools.
Seeking a more collaborative and innovative work environment.
Want to expand my skill set and knowledge in a different industry.
Current organization lacks career advancement opportunities.
- Q2. Salary expectations
Interview Preparation Tips
I applied via Instahyre and was interviewed in Aug 2024. There were 3 interview rounds.
String and DP questions
(1 Question)
- Q1. Design BookMyShow
(1 Question)
- Q1. Past challenging projects
- Ans.
Developed a real-time data processing system for a high-traffic e-commerce platform.
Implemented distributed computing using Apache Kafka and Spark.
Optimized database queries to handle large volumes of data.
Designed fault-tolerant architecture to ensure system reliability.
Collaborated with cross-functional teams to meet project deadlines.
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