Schneider Electric Lead Engineer Interview Questions and Answers

Q1. What is closure
Ans. 
A closure is a function that has access to its own scope, as well as the scope in which it was defined.
• A closure allows a function to access variables from its outer function even after the outer function has finished executing.

• Closures are commonly used in event handlers, callbacks, and asynchronous programming.

• Example: function outerFunction() { let outerVar = 'I am outer'; return function innerFunction() { console.l
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Q2. What is hoisting
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Hoisting is a JavaScript mechanism where variable and function declarations are moved to the top of their containing scope during the compilation phase.
• Variable and function declarations are hoisted to the top of their scope.

• Only declarations are hoisted, not initializations.

• Function declarations take precedence over variable declarations.

• Example: console.log(myVar); var myVar = 10; // Output: undefined

• Example: cons...read more
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Q1. C++ based questions
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Q1. About previous project & interests
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Q1. Casual discussion
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Q1. String immutable , why how explanation
Ans. 
Strings are immutable because their values cannot be changed once they are created.
• Immutable objects cannot be modified once they are created

• String objects are created with a fixed value and cannot be changed

• Any operation that appears to modify a string actually creates a new string object
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Q2. Java design pattern, synchronised, multi threaded layer
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Q3. Db queries optimisation issue resolution
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Q1. Tcp protocol, dns, post and put
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Q1. Questions about current work experience.
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Q1. Asked about relocation, salary, variable salary.
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Q1. The purpose of the call was to assess the suitability for the role for which I was being considered.
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Q2. What is your skill set, and how many years of experience do you have in each of those skills?
Ans. 
I have a strong skill set in programming languages such as Java, Python, and C++, with over 5 years of experience in each.
• Java - 7 years of experience, used in developing enterprise applications

• Python - 5 years of experience, used for data analysis and automation scripts

• C++ - 6 years of experience, used in embedded systems programming
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Q1. Can you provide an in-depth overview of the project?
Ans. 
The project is a web-based application for managing inventory and sales for a retail company.
• Developed using Java Spring framework

• Utilizes MySQL database for storing data

• Includes features such as user authentication, product management, and sales tracking
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Q2. Few cross-questions regarding the projects.
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Q1. Soft skills, strength and weakness discussion.
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Q2. Salary and notice period discussion.
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Q1. Can you provide details about your background and explain your reasons for wanting to switch jobs?
Ans. 
I have a background in project management and am seeking a new challenge in a leadership role.
• Background in project management

• Seeking new challenge in leadership role

• Desire for growth and development
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Depends on number of years of experience and salary expectation CAD test will be conducted for approx. 3 hours.

Question on the CAD software and Basic engineering questions such as Power calculation, Weight of given volume, Force calculation etc.

Q1. Not yet invited.
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Q1. Knowledge about automation and conveyor system
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Q2. Conveyors, bearings, alignment sequence
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Q1. Previous experience
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