Stonewain Systems, an EquiLend Company Software Quality Engineer Interview Questions and Answers

Logical reasoning, grammar, and coding: two basic level questions.

Q1. Question on core Java
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Q2. Question on SQL and PLSQL
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Q3. Resume based question and on project
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Q1. Resume and project based question
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Q2. What do you like about your current company, and why do you want to join our organization?
Ans. 
I appreciate the collaborative team environment and innovative projects at my current company, and I am excited about the opportunities for growth and learning at your organization.
• Collaborative team environment fosters creativity and productivity

• Innovative projects challenge me to learn and grow

• Excited about the opportunities for growth and learning at your organization
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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.

Js coding question and mcq

Q1. Basic and Advanced Js concepts
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Q2. Basics of Html css
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Q3. Front-end related questions and scenarios based questions
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Q1. Tell me about you self
Ans. 
I am a highly experienced software engineer with a passion for problem-solving and a strong background in developing innovative solutions.
• Over 10 years of experience in software development

• Proficient in multiple programming languages such as Java, Python, and C++

• Strong problem-solving skills demonstrated through successful project completions

• Experience working in Agile development environments

• Excellent communication an
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Q2. Situation based questions
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Q3. Salary negotiation
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Java coding questions, basic Java questions.

Q1. Java basics questions.
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Q2. Live coding.
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Q1. Discussion on previous experience and projects.
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Q2. System design question
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Q1. Questions on SQL, Java advanced, personal projects, Java frameworks, UI based questions, Agile methodologies.
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Q2. Interview discussion with the whole team.
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Q1. Benefits discussion.
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Q2. Salary discussion.
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Technical sql questions

Oops concept and sql db questions

Q1. Dependency injection
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Coding assessment in Code signal which is vedio proctored

Q1. Design a loan application system
Ans. 
Design a loan application system
• Collect applicant information such as personal details, employment history, and financial information

• Include a credit check process to assess applicant's creditworthiness

• Implement a system for loan approval/rejection based on set criteria

• Provide options for different types of loans and repayment plans

• Ensure security measures are in place to protect applicant's sensitive information
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Bank account creation, deposit money, withdraw money

Q1. Question around work experience and how a particular scenario or situation is handled
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Suggest system cost optimization based on given data set

Q1. C++ 11, 14 Deep dive, Multi-threading etc
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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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