Eurofins Scientific Associate Software Engineer Interview Questions and Answers

Q1. What is your highest qualification
Ans. 
My highest qualification is a Master's degree in Electrical Engineering.
• Master's degree in Electrical Engineering

• Specialized in power systems

• Thesis focused on renewable energy integration

• Completed advanced courses in control systems

• Published research papers in IEEE conferences
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Q1. What is your role and responsibilities in the project quality?
Ans. 
As a Senior Engineer, my role in project quality is to ensure that all deliverables meet the required standards and specifications.
• Developing and implementing quality assurance processes and procedures

• Conducting regular audits and inspections to identify any quality issues

• Collaborating with cross-functional teams to address and resolve quality concerns

• Creating and maintaining quality documentation, including test plans...read more
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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
Ans. 
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. All basic java questions
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Q1. Coding question was asked. It was easy.
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Q1. One on one with Manager. It was easy and manager was really nice.
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Q1. HR was direct and asking generic questions related to previous experience and behavioral questions.
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Q1. Questions on OOPs concepts
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Q2. Software development life cycle
Ans. 
Software development life cycle is a process used by software developers to design, develop, test, and deploy software applications.
• SDLC consists of several phases such as planning, analysis, design, implementation, testing, and maintenance.

• Each phase has its own set of activities and deliverables to ensure the successful completion of the project.

• Examples of SDLC models include Waterfall, Agile, Scrum, and DevOps.

• SDLC...read more
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Two coding questions. One using quick sort. The other one was for prime numbers

Q1. How to reverse two numbers without using temp variable
Ans. 
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
Ans. 
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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It was a test to create a login page and connect to database

Q1. What is difference between interface and abstract class
Ans. 
Interface is a contract with no implementation, while abstract class can have some implementation.
• Interface cannot have any implementation, only method signatures

• Abstract class can have both abstract methods and concrete methods

• A class can implement multiple interfaces but can only inherit from one abstract class

• Interfaces are used to achieve multiple inheritance in Java
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Q2. What are main concepts of oops
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Main concepts of OOP include encapsulation, inheritance, polymorphism, and abstraction.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

• Inheritance: Ability of a class to inherit properties and behavior from another class.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implementation details and showing only the nec
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