Signzy Technologies Data Operations Engineer Interview Questions and Answers

Q1. System design of a background process to fetch data and process them
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Q2. Code to find an element in a sorted 2d array
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Q1. Design and code a zoo management system.
Ans. 
A zoo management system to track animals, enclosures, staff, and visitor information.
• Create classes for animals, enclosures, staff, and visitors

• Implement functions for adding, updating, and deleting records

• Include features for scheduling feeding times, cleaning enclosures, and managing staff shifts
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Standard DSA questions

Q1. Standard HR stuff.
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Q1. Domain related questions
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Q2. Configuration pf stack
Ans. 
Configuration of a stack involves setting up the environment, dependencies, and parameters for software deployment.
• Define the stack components: Choose the programming languages, frameworks, and tools (e.g., MERN stack: MongoDB, Express, React, Node.js).

• Set up environment variables: Use .env files to manage sensitive information like API keys and database URLs.

• Configure build tools: Use tools like Webpack or Babel to bu...read more
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4 Coding Questions Leetcode Level Medium to Hard. Had to solve it within 1.5 hours.

Was able to solve 2 questions - One hard and one Medium. Hadn't enough time to solve all.

Q1. DSA based round. Was asked to write 3 APIs based on the the given n-ary tree.
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Q2. Questions based on Path, end node, best path, etc.
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Q1. System Design round : Was asked to design RDBMS for the given problem.
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Q1. HM Round : Mostly behavioral based around Twilio Magic Values
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Q1. Bar Raiser Round : Taken by a director. Was asked behavioral questions again.
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Q1. They asked to design a database table
Ans. 
Design a database table for managing user accounts in a web application.
• Table Name: Users

• Columns: id (INT, Primary Key), username (VARCHAR), password (VARCHAR), email (VARCHAR), created_at (TIMESTAMP)

• Indexes: Create an index on username for faster lookups.

• Constraints: Ensure email is unique and validate password strength.
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Low level Design Problem in Java

Q1. Data Structures - Graph Problem DFS
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System Design with few details

Q1. What is the DOM ?
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Q2. What is SSR?
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Q1. LLD one question Parking lot system
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Q2. Queue related basic questions
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Q3. Basic .net core questions
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