ZET Software Development Engineer II Interview Questions and Answers

Practice medium leetcode questions

Q1. System Design and database design
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Q1. What are your salary expectations?
Ans. 
I am open to discussing salary based on the responsibilities and opportunities offered by the position.
• I am flexible and open to negotiation.

• I am looking for a fair and competitive salary.

• I value the opportunity to grow and develop in my career.

• I am willing to consider other benefits and perks in addition to salary.
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Q2. What is your family background?
Ans. 
My family background is diverse and includes individuals from various professions and cultural backgrounds.
• My father is a doctor and my mother is a teacher.

• I have an older brother who is an engineer.

• My grandparents were farmers and owned a small business.

• We have relatives living in different countries, which has exposed me to different cultures and traditions.
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Q3. Share details of your previous job.
Ans. 
I worked as a Software Developer at XYZ Company.
• Developed and maintained software applications using Java and Python.

• Collaborated with cross-functional teams to gather requirements and design solutions.

• Implemented new features and fixed bugs in existing software.

• Performed code reviews and provided feedback to improve code quality.

• Participated in Agile development processes and attended daily stand-up meetings.

• Worked on...read more
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Q4. Why should we hire you?
Ans. 
I have a strong technical background and a passion for software development.
• I have a solid understanding of programming languages and software development principles.

• I have experience working on various software projects and have a track record of delivering high-quality code.

• I am a quick learner and adapt easily to new technologies and frameworks.

• I am a team player and enjoy collaborating with others to solve complex ...read more
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Q5. Why are you looking for a change?
Ans. 
Seeking new opportunities for professional growth and challenges.
• Looking for a more challenging role

• Want to expand my skill set

• Seeking better career prospects

• Interested in working with new technologies

• Want to work in a more collaborative environment
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Q6. Where do you see yourself in 5 years?
Ans. 
In 5 years, I see myself as a senior software developer leading a team and working on complex projects.
• Leading a team of developers

• Working on complex projects

• Continuously learning and staying updated with new technologies

• Contributing to the growth and success of the company
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Q7. What are your strengths and weaknesses?
Ans. 
My strengths include problem-solving, attention to detail, and teamwork. My weaknesses include time management and public speaking.
• Strengths: problem-solving, attention to detail, teamwork

• Weaknesses: time management, public speaking
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Q8. Tell me about yourself.
Ans. 
I am a software developer with experience in various programming languages and a passion for creating innovative solutions.
• Experienced in Java, C++, and Python

• Developed a web application using React and Node.js

• Worked on a team to create a mobile app for iOS and Android

• Strong problem-solving and analytical skills
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The first round was a coding test, which was outsourced to an external vendor. I was asked 2 basic DSA questions, and there was discussions around the time and space complexity, and scope of optimizing the solutions. Post that there were a few questions around Spring Boot features and basic system design. The interviewer was professional throughout the interview, and the interview process felt more like a discussion, as compared to the standard interview process.

There was another round of coding - this time conducted by the organization itself. It consisted of a medium level DSA question on stacks. I wrote the code on my personal IDE and executed it there itself. The interviewer discussed about the possible edge cases and how I would deal with them. Post solving the question I was asked about my previous projects.

Q1. Discuss in detail about a scenario where a challenging production issue was handled.
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Q2. What are your responsibilities as a senior / team lead in the current organization?
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Q3. How did you handle conflicts with junior engineers and reporting managers?
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This was the final round where the discussion was largely around system design and HLD. It started off with questions are system design patterns and concepts. Then I was asked to design a booking design, with discussions around concurrency control and transaction management.

Q1. DP on Stock buy n sell
Ans. 
Implement a dynamic programming solution for stock buy and sell problem.
• Use dynamic programming to find the maximum profit by buying and selling stocks.

• Keep track of the minimum stock price seen so far and update the maximum profit accordingly.

• Consider edge cases like no profit or negative profit.

• Example: Input [7, 1, 5, 3, 6, 4], Output 5 (buy at 1, sell at 6)
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Q1. Dynamo db working style
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DynamoDB is a fully managed NoSQL database service provided by AWS, designed for high performance and scalability.
• DynamoDB is schema-less, allowing for flexible data models

• It offers high availability and durability through replication and automatic backups

• DynamoDB uses primary keys for data retrieval, with optional secondary indexes for querying

• It supports ACID transactions for consistency and reliability

• DynamoDB is de...read more
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Q2. Function vs method
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A function is a standalone block of code that can be called independently, while a method is a function that is associated with a class or object.
• Functions are standalone blocks of code, while methods are functions associated with classes or objects.

• Functions can be called independently, while methods are called on specific instances of classes or objects.

• Functions are defined outside of classes, while methods are defi...read more
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Q1. Basic angular and javascript concepts
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Q2. Life cycle of angular
Ans. 
Angular has a life cycle consisting of several phases that a component goes through from creation to destruction.
• Angular components go through several life cycle hooks such as ngOnInit, ngOnDestroy, etc.

• ngOnInit is called after the component has been initialized and its data-bound properties have been checked.

• ngOnDestroy is called just before the component is destroyed.

• Other life cycle hooks include ngOnChanges, ngDoCh...read more
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Q1. Advanced angular and javascript concepts
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Q1. Advanced javascript html css typescript
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Q1. Common questions on salary expectations and explain about benefits
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1 hour - Reverse linked list k at a time

Q1. Java 8 stream setup
Ans. 
Java 8 stream setup involves creating a stream from a collection or array and applying operations like filter, map, and reduce.
• Create a stream from a collection using stream() method

• Apply operations like filter, map, and reduce to process elements

• Use terminal operations like collect or forEach to get the final result
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Q2. CAP Theorem explanation wanted
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CAP Theorem states that in a distributed system, it is impossible to simultaneously achieve consistency, availability, and partition tolerance.
• Consistency: All nodes in the system have the same data at the same time.

• Availability: Every request gets a response, even if some nodes are down.

• Partition Tolerance: The system continues to operate despite network partitions.

• Examples: MongoDB prioritizes consistency and partiti...read more
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Q1. Questuohn aksed about ds algo not otughj onew
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Q2. AFS FJBN.EJKF AFBJ
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Q3. DHB WFJG WDJ
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Q4. SD E W D
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Q1. Question aksed in one on one
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Q1. Internal Implementation of HashMap
Ans. 
HashMap is implemented using an array of linked lists to handle collisions.
• HashMap stores key-value pairs in an array of linked lists

• Hash function is used to determine the index of the array where the key-value pair will be stored

• Collision handling is done by chaining, where multiple key-value pairs with the same hash value are stored in the same linked list

• HashMap allows null keys and values

• HashMap is not synchronized...read more
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