EarlySalary Services Software Engineer Interview Questions and Answers

I was asked to perform the low-level design of a microservice.

Basic DSA and android questions

Live coding round for android

Q1. Explain your past experiences?
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Q1. Design Rating Review System
Ans. 
Design a system to rate and review products or services.
• Allow users to rate products on a scale of 1-5 stars.

• Include written reviews for users to provide more detailed feedback.

• Implement a system to filter and display reviews based on relevance or helpfulness.

• Consider incorporating user profiles and past review history to personalize recommendations.
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Q2. General Engineering questions, system design concepts
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Q1. Tell me about yourself
Ans. 
I am a passionate software engineer with experience in developing web applications using various technologies.
• Experienced in developing web applications using HTML, CSS, JavaScript, and frameworks like React and Angular

• Proficient in backend development with Node.js and databases like MySQL and MongoDB

• Familiar with version control systems like Git and project management tools like Jira
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Q2. Past work expert
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Basic DS Question, Medium level difficulty , followed with some puzzles

Q1. System Design : Design in memory Database
Ans. 
Designing an in-memory database involves optimizing data storage and retrieval for fast performance.
• Use data structures like hash tables or B-trees for efficient indexing and searching

• Implement caching mechanisms to reduce disk I/O and improve read/write speeds

• Consider data durability and consistency mechanisms to prevent data loss in case of system failures
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Q1. Discussion with Manager, on projects/work experience and questions around challenges, more on resume /work experience
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Q1. LLD/Machine coding - Design a social media application with users, posts, comments, likes, etc. There is also an admin who needs to approve post creation and can delete any post they want. Create appropria...read more
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Q1. High-level design - Design a chat-based application like WhatsApp with only user-to-user chat feature (no group chats). Explain and draw out the E2E design by mentioning all the components and design decis...read more
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Q1. Hiring Manager - basic questions like why Razorpay, what are your career goals, what does career growth look like for you, etc.
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It was leetcode questions for 60 min for 2 questions.

Q1. Tell me about your self
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Q1. Tell me about your work experience
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