Sciative Solutions Junior Software Development Engineer Interview Questions and Answers

Q1. It was mostly on scenario based questions and I was asked to code online.
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Q1. Discussion were there past projects, how different objectives were done.
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Q1. Round 1 was hackerrank test. MCQs and coding questions.
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Q2. Kafka related questions.
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Q3. Java 8 related questions. Java streams.
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Q1. Multithreading and Java8 coding question
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Q2. System design question on payments, design patterns and Java, Spring Questions
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Q1. System design for robust e-commarce site
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Q2. How to reduce the failure rate for payment gateway which is communicating to multiple 3rd party wallets and credit card transactionm
Ans. 
Implementing strategies to enhance reliability and reduce failure rates in payment gateway integrations.
• Implement retries with exponential backoff for failed transactions to handle temporary issues.

• Use circuit breakers to prevent overwhelming third-party services during outages.

• Monitor and log transaction failures to identify patterns and root causes.

• Implement fallback mechanisms to alternative payment methods when pri...read more
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Discussion on experience and current role and responsibilities

Q1. 1. Discuss one past project
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Developed a web-based inventory management system to streamline stock tracking and order processing for a retail client.
• Utilized React for the front-end, ensuring a responsive and user-friendly interface.

• Implemented a RESTful API using Node.js and Express to handle data transactions.

• Integrated a PostgreSQL database for efficient data storage and retrieval.

• Incorporated real-time notifications for low stock levels using ...read more
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Q2. 2. Design a job scheduler
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A job scheduler is a software application that manages the scheduling of tasks or jobs to be executed by a computer system.
• Define the job scheduling requirements such as priority, deadline, resource constraints, etc.

• Implement a scheduling algorithm like First Come First Serve, Shortest Job First, Round Robin, etc.

• Maintain a queue of jobs to be executed and allocate resources accordingly.

• Monitor job execution and handle...read more
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Q1. Find in rotated sorted array
Ans. 
Search for a target value in a rotated sorted array.
• Use binary search to find the pivot point where the array is rotated.

• Determine which half of the array the target value lies in based on the pivot point.

• Continue binary search in the appropriate half of the array to find the target value.
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Q2. Design IMDB. how will you manage concurrent ratings
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Design IMDB with concurrent ratings management
• Implement a locking mechanism to ensure only one user can update a rating at a time

• Use a queue system to handle multiple rating requests in an orderly manner

• Consider using distributed systems to handle high concurrency levels
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Q1. Design vehicle rental system. Api design
Ans. 
Design a vehicle rental system API
• Create endpoints for listing available vehicles, booking a vehicle, and returning a vehicle

• Include authentication and authorization mechanisms for users and admins

• Implement payment gateway integration for processing rental payments

• Include features like vehicle search, filtering, and reviews/ratings

• Consider scalability and performance optimizations for handling high traffic
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Q1. HR interviews questions, Tell about yourself?
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Q2. What motivates you to do work?
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I am motivated by challenges, continuous learning, and the impact my work has on users and the team.
• Solving complex problems: I enjoy tackling difficult coding challenges, like optimizing algorithms for better performance.

• Continuous learning: I am driven by the opportunity to learn new technologies, such as exploring machine learning frameworks.

• Team collaboration: Working with a diverse team inspires me, as we share kn...read more
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It was a combination of aptitude and react mcq questions.

Q1. It was technical round where questions were mostly from JavaScript and a few on React (depends on individual’s experience). You might expect a array/string coding question as well. Example- To find the pai...read more
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Q2. In JavaScript, there were code output questions, ES6 features, hoisting, closures, Arrow functions etc. Css and bootstrap responsiveness questions. All basic questions.
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Q1. Tell me about yourself.
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Q2. Why are you looking for a change?
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Q3. Share details of your previous job.
Ans. 
I worked as a Software Engineer at XYZ Corp, focusing on developing scalable web applications and enhancing user experience.
• Developed a customer relationship management (CRM) system that improved client interactions by 30%.

• Collaborated with cross-functional teams to design and implement new features, resulting in a 20% increase in user engagement.

• Utilized Agile methodologies to streamline project workflows, leading to ...read more
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Q4. What are your salary expectations?
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Q5. What is your family background?
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Q6. If your location is far from the office (baner road), how would you commute daily? How will you manage once office resumes working from office.
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