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Ecolab Senior Software Engineer Interview Questions and Answers
Updated
24 Oct 2021
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Anonymous
I applied via LinkedIn and was interviewed before Oct 2020.
3 Interview Rounds
Interview Questions
- Q1. SharePoint architecture
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- Q2. SharePoint Online
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- Q3. Powerapps architecture
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Interview Preparation Tips
Interview preparation tips for other job seekers - Always prepare full with complete project understanding. You should have confidence on yourself.
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Interview Tips & Stories
2w (edited)
a consultant
Alternate documents for Employee verification?
My new employer asked for my previous offer letters and salary slips. When I inquired, they said it was for background verification.
However, I feel that providing these documents might affect salary negotiations, and it feels a bit unethical too.
What alternative documents can I provide for employment verification?
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Interview questions from similar companies
Interview experience
Poor
Difficulty level
Moderate
Duration
2-4 weeks
Result
No response
I applied via Naukri.com and was interviewed in Nov 2024.
1 Interview Round
1
Technical Round (16 Questions)
- Q1. What are custom hooks in React, and what are their use cases? Additionally, can you provide an example of a custom hook that performs an API call and utilizes t...read more View Answers (1)
- Q2. What is the difference between useMemo and useCallback in React? View Answers (1)
- Q3. What is the difference between class-based components and functional components in React? View Answers (1)
- Q4. How can you implement the lifecycle of a React component in a functional component? View Answers (1)
- Q5. What are the various state management techniques available in React? View Answers (1)
- Q6. What is the architecture of Redux, and what purposes do middlewares serve within it? View Answers (1)
- Q7. What is hoisting in JavaScript? View Answers (1)
- Q8. What is event bubbling in JavaScript? View Answers (1)
- Q9. What are block scope and function scope in JavaScript? View Answers (1)
- Q10. Have you had experience working with semantic tags in HTML? View Answers (1)
- Q11. What are the various methods for creating an object in JavaScript? View Answers (1)
- Q12. What are the differences between shallow copy and deep copy in JavaScript? View Answers (1)
- Q13. What will be the output of the following JavaScript code fragment: `const a; function test() { console.log(a); }; test();`? View Answers (1)
- Q14. How can you use CSS to arrange elements in a row and column layout? View Answers (1)
- Q15. Have you utilized CSS preprocessors, and if so, which ones? View Answers (1)
- Q16. If I have assigned different colors to an ID and a class and applied both to the same element, which color will be applied based on CSS specificity precedence? View Answers (1)
Interview Preparation Tips
Topics to prepare for Cognizant Senior Software Engineer interview:
- Javascript
- React.Js
- HTML
- CSS
Skills evaluated in this interview
Interview experience
Excellent
Difficulty level
Moderate
Duration
2-4 weeks
Result
Selected
I applied via Naukri.com
3 Interview Rounds
1
Technical Round (1 Question)
- Q1. Basic screening question based on the resume Add Answer
2
Technical Round (1 Question)
- Q1. Deep-dive in technology Add Answer
3
One-on-one Round (1 Question)
- Q1. HR one-on-one communication Add Answer
Interview experience
Excellent
Difficulty level
Moderate
Duration
Less than 2 weeks
Result
Selected
I applied via Referral and was interviewed in Oct 2024.
1 Interview Round
1
One-on-one Round (5 Questions)
- Q1. List down Java 8 features and use case View Answers (1)
- Q2. List down Spring boot annotation used View Answers (1)
- Q3. Difference between String builder and String Buffer View Answers (1)
- Q4. What is String pool View Answers (1)
- Q5. Number of memory type have. like heap memory , stack View Answers (1)
Interview Preparation Tips
Topics to prepare for IBM Senior Software Engineer interview:
- Collections
- java 8
- Spring Boot
- tsl
- SSL
- OOPS
- String pool
- Heap memory
- Strig builder
- String buffer
Skills evaluated in this interview
Interview experience
Good
Difficulty level
Moderate
Duration
Less than 2 weeks
Result
Not Selected
I applied via Company Website and was interviewed in Oct 2024.
2 Interview Rounds
1
Technical Round (4 Questions)
- Q1. Explain projects View Answers (1)
- Q2. Tech stack u worked on View Answers (1)
- Q3. Collection framework Add Answer
- Q4. Spring Framework questions Add Answer
2
Behavioral Round (2 Questions)
- Q1. Springs questions Add Answer
- Q2. Working knowledge in Java Add Answer
Better Catch me
Interview experience
Excellent
Difficulty level
-
Duration
-
Result
-
1 Interview Round
1
Technical Round (7 Questions)
- Q1. Explain concepts of Docker and Kubernetes View Answers (1)
- Q2. Deploying an app in Kubernetes View Answers (1)
- Q3. Cloud technologies Add Answer
- Q4. Questions about previous projects Add Answer
- Q5. Kafka questions, credentials, port-binding Add Answer
- Q6. Interfaces in Golang - Code View Answers (1)
- Q7. Goroutines - explain with example code View Answers (1)
Skills evaluated in this interview
Interview experience
Good
Difficulty level
-
Duration
-
Result
-
I applied via Job Portal
2 Interview Rounds
1
Technical Round (2 Questions)
- Q1. Sql join query related questions Add Answer
- Q2. Sql find duplicate View Answers (1)
2
HR Round (2 Questions)
- Q1. Package discussion Add Answer
- Q2. Company policies Add Answer
Interview experience
Excellent
Difficulty level
Moderate
Duration
-
Result
Not Selected
I applied via Job Portal and was interviewed in Nov 2024.
1 Interview Round
1
Technical Round (4 Questions)
- Q1. What is DI in Asp.ner core Add Answer
- Q2. What is Middleware Add Answer
- Q3. What is Threading Add Answer
- Q4. Async and await Add Answer
Interview experience
Excellent
Difficulty level
-
Duration
-
Result
-
1 Interview Round
1
Technical Round (7 Questions)
- Q1. What is angular View Answers (1)
- Q2. What is routing View Answers (1)
- Q3. How many types of forms View Answers (1)
- Q4. Lazy loading in angular View Answers (1)
- Q5. Rx jx operator in angular View Answers (1)
- Q6. Testing frameworks how to works View Answers (1)
- Q7. How to load a angular application View Answers (1)
Skills evaluated in this interview
Interview experience
Excellent
Difficulty level
-
Duration
-
Result
-
3 Interview Rounds
1
Technical Round (1 Question)
- Q1. Microservices design patterns Add Answer
2
Technical Round (1 Question)
- Q1. System design for 1l rest api View Answers (1)
3
HR Round (1 Question)
- Q1. Salary negotiation Add Answer
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Senior Software Engineer Interview Questions from Similar Companies
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than the average Senior Software Engineer Salary in India
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Ecolab Senior Software Engineer Reviews and Ratings
based on 3 reviews
Rating in categories
|
Data Analyst
36
salaries
|  ₹2.8 L/yr - ₹9.8 L/yr |
|
Supply Chain Analyst
15
salaries
| ₹6.5 L/yr - ₹15 L/yr |
|
Software Engineer
14
salaries
| ₹7.5 L/yr - ₹16 L/yr |
|
Senior Software Engineer
10
salaries
| ₹18 L/yr - ₹33 L/yr |
|
Territory Manager
10
salaries
| ₹9.8 L/yr - ₹13.8 L/yr |
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