Eurofins Scientific Senior QA Engineer Interview Questions and Answers

Q1. Technical questions related to core engg. field.
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Q1. Typical HR related questions such as past company experience, any issues with past employers, work environment & policies of the organization etc...
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Q1. Production piping regarding
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Q2. Hydro and erection and commissioning.
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Q1. Self Introduction, explain about your projects
Ans. 
I am a software engineer with experience in developing web applications using Java, Spring Boot, and Angular.
• Developed a web application for a retail company using Java and Spring Boot

• Implemented RESTful APIs for communication between frontend and backend

• Designed and developed user interfaces using Angular framework
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Q2. Rotate an array n times with a O(1) time complexity
Ans. 
Use modular arithmetic to efficiently rotate array n times.
• Use modular arithmetic to calculate the effective number of rotations (n % array length)

• Reverse the entire array

• Reverse the first n elements

• Reverse the remaining elements
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Q1. Self Introduction
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Q2. What do you know about the company
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The company is a leading software development firm specializing in creating innovative solutions for various industries.
• Specializes in creating innovative software solutions

• Works with clients from various industries

• Known for high-quality and reliable products

• Has a strong team of software engineers and developers
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Q1. How to reverse two numbers without using temp variable
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To reverse two numbers without using a temp variable, use bitwise XOR operation.
• Use bitwise XOR operation to swap two numbers without using a temp variable.

• Example: a = 5, b = 7. a = a XOR b, b = a XOR b, a = a XOR b. After this, a = 7, b = 5.
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Q1. Why do you want to join Thermo Fisher
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I want to join Thermo Fisher because of their reputation for innovation and impact in the scientific community.
• Thermo Fisher is a leader in the scientific research and healthcare industry

• I am impressed by their commitment to innovation and cutting-edge technology

• I believe working at Thermo Fisher will provide me with opportunities for professional growth and development
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Q1. Selenium and java .scenario based questions.
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Q1. Strict verification process
Ans. 
Strict verification process ensures high quality of the product.
• Define clear acceptance criteria

• Perform thorough testing at each stage

• Use automated testing tools

• Conduct peer reviews

• Implement continuous integration and delivery

• Document all test cases and results
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Q2. Need to submit all educational ,all job companies details
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Round duration - 60 minutes
Round difficulty - Easy

This was a written test with 2 coding problems.

Q1. 
Combination Sum Problem Statement
Given an array of distinct positive integers ARR and a non-negative integer 'B', find all unique combinations in the array where the sum is equal to 'B'. Numbers can be c...read more
Ans. 
The task is to find all unique combinations in an array where the sum is equal to a given target sum, with elements in non-decreasing order.
• Use backtracking to generate all possible combinations.

• Sort the array to ensure elements are in non-decreasing order.

• Keep track of the current combination and sum while exploring the array.

• Recursively explore all possible combinations.

• Return the valid combinations that sum up to th
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Q2. 
Next Greater Number Problem Statement
Given a string S which represents a number, determine the smallest number strictly greater than the original number composed of the same digits. Each digit's frequenc...read more
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The task is to find the smallest number greater than the given number with the same set of digits.
• Iterate from right to left to find the first digit that can be swapped with a larger digit to make the number greater.

• Swap this digit with the smallest digit to its right that is larger than it.

• Sort all digits to the right of the swapped digit in ascending order to get the smallest number.

• If no such number exists, return -
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