PayPal Senior Engineering Manager Interview Questions and Answers

Q1. Design pattern ,spring boot
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Q1. DS also, solutioning
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Q1. Manager round on scalability
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Q1. Share the instance where you unblocked your team.
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Q2. How do you handle the team conflict?
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Q3. Why are you interested in change?
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Q1. OOPS,Smart pointer , casting operator , write a code for singleton design pattern for multithread environment
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Q2. Some programming question, advanced STL questions on vector and map
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Q1. Leetcode medium level questions
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Q2. Advanced STL asked on vector and map
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Q1. What are risks? Can you elaborate different types of risks?
Ans. 
Risks are potential events that can cause harm or loss. There are various types of risks.
• Financial risk - loss of money or assets

• Operational risk - failure of processes, systems or people

• Reputational risk - damage to brand or image

• Legal risk - violation of laws or regulations

• Strategic risk - failure to meet business objectives

• Physical risk - harm to people or property

• Cybersecurity risk - data breaches or cyber attacks
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Q2. How do you mitigate risks?
Ans. 
I mitigate risks by identifying potential risks, analyzing their impact, and implementing measures to prevent or minimize them.
• Identify potential risks

• Analyze the impact of each risk

• Implement measures to prevent or minimize risks

• Regularly review and update risk management plan

• Communicate risks and mitigation strategies to stakeholders
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Q1. How much do you expect?
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Rotate a matrix by 90 degrees

Q1. Design ride sharing platform
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Q2. Design whatsapp
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Q1. Perfomance tuning,Collection,Bulk collect related questions.
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Q2. They asked me many questions which cover complete sql and PLSQL.
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Q1. Second round would be Manager round which is combination of technical and manager round.
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Q1. What are the design patterns in C#
Ans. 
Design patterns in C# are reusable solutions to common problems in software design.
• Some common design patterns in C# include Singleton, Factory, Observer, and Strategy.

• Design patterns help in creating maintainable and scalable code by providing proven solutions to common design problems.

• For example, the Singleton pattern ensures that a class has only one instance and provides a global point of access to it.
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Q2. Explain SOLID principles
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SOLID principles are a set of five design principles in object-oriented programming to make software designs more understandable, flexible, and maintainable.
• S - Single Responsibility Principle: A class should have only one reason to change.

• O - Open/Closed Principle: Software entities should be open for extension but closed for modification.

• L - Liskov Substitution Principle: Objects of a superclass should be replaceable...read more
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Q3. WPF and XAML Questions
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Q4. Advance C# questions
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Q1. SQL related questions
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Q2. Asked the one puzzle
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Q3. Domain knowledge
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Q1. Past Projects details
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Q1. Securing Data in Transmission, Best Security Practices
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