ZKTeco Biometrics Senior Software Engineer Interview Questions and Answers

Aptitude followed by core C++ questions.

Q1. What are the expectations
Ans. 
Expectations for a Senior Software Engineer
• Strong technical skills and expertise in relevant programming languages and technologies

• Ability to lead and mentor junior team members

• Experience in designing and implementing complex software systems

• Excellent problem-solving and analytical skills

• Strong communication and collaboration skills
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Q2. Why you want to join
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White board coding test

Q1. Any other offers in hand?
Ans. 
Yes, I have received offers from two other companies.
• Received offers from Company A and Company B

• Currently evaluating all offers before making a decision
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Q2. Situation based question
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Q1. Print the largest string from the given 5 strings
Ans. 
Find the largest string from a given array of 5 strings
• Iterate through the array of strings and compare the length of each string

• Keep track of the largest string found so far

• Return the largest string at the end
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Q2. Check if the required dropdown option is displayed or not
Ans. 
Use Selenium WebDriver to locate the dropdown element and check if the required option is displayed
• Locate the dropdown element using Selenium WebDriver

• Use the Select class to interact with the dropdown

• Verify if the required option is displayed using isSelected() method
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Basic coding questions that are available with just one google search

Q1. NodeJS event loop
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Q2. What isClosure explain with example
Ans. 
A closure is a function that has access to its own scope, as well as the outer function's scope.
• Closure allows a function to access variables from its outer function even after the outer function has finished executing.

• Example: function outerFunction() { let outerVar = 'I am outer'; return function innerFunction() { console.log(outerVar); }; }

• When innerFunction is called, it can still access outerVar even though outerF
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Aptitude test covering all technical questions

Q1. Profile related technical
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Q1. Salary negotiation and policy brief
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Q2. Salary negotiation and policy brief given
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Page development using a framework you are familiar with.

All the languages you have mentioned.

Q1. Compensation and other details
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Q1. Tel about yourself
Ans. 
I am a passionate software developer with experience in Java, Python, and web development.
• Proficient in Java, Python, and web development technologies such as HTML, CSS, and JavaScript

• Experience working on various projects including a web-based inventory management system using Django framework

• Strong problem-solving skills and ability to work well in a team environment
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