System Design Interview
System Design Interview is a technical interview round where candidates design scalable, reliable and efficient software systems. It evaluates understanding of architecture, databases, APIs, scalability, load balancing, caching and real-world problem-solving to assess the ability to build large-scale applications.
Top System Design Interview Blogs
System Design Basics: High Level Design (HLD) vs Low Level Design (LLD)
System design explained in plain words, what HLD and LLD actually mean, with a real project story, a URL shortener example and working Java code
Functional vs Non-Functional Requirements (With Real Examples)
Functional vs non-functional requirements explained with a real incident, ISO/IEC 25010 types, examples, templates and a 5-minute audit checklist.
My Microsoft SWE Interview Experience (July 2026): 4 Rounds, Real Mistakes and the Offer
Read my Microsoft Software Engineer (L62) interview experience with coding, LLD, HLD, managerial rounds, mistakes, solutions, and preparation tips.
Meesho SDE-1 Backend Interview Experience (Remote | 3 Round) - Rejected
Read a real Meesho SDE-1 Backend interview experience covering the online assessment, DSA interview, machine coding round, LLD questions and preparation tips.
Load Balancer in System Design: Complete Beginner to Advanced Guide
Learn load balancers in system design with types, algorithms, Layer 4 vs Layer 7, health checks, SSL termination, scalability and real-world examples.
AWS DevOps Interview Questions and Answers
Prepare for AWS interviews with 50+ questions covering IAM, EC2, S3, VPC, Lambda, RDS, ECS, EKS, CloudWatch, networking and real-world scenarios.
Amazon SDE-2 Interview Experience (3 Years Experience)
Read a real Amazon SDE-2 interview experience covering the online assessment, coding rounds, object-oriented design, leadership principles and system design.
High-Level Design (HLD): A Complete Beginner to Advanced Guide
Learn High-Level Design (HLD) in system design with architecture, components, scalability, load balancing, databases, real-world examples and best practices.
ServiceNow Associate Systems Engineer Interview Experience | DSA, Computer Networks & Operating Systems
ServiceNow Associate Systems Engineer interview experience with DSA, OS, Computer Networks, Word Ladder, Matrix Rotation, questions and tips.
Swiggy SDE (Backend Engineer) Interview Experience | Java, System Design, Automation Frameworks & SQL
Swiggy Backend Engineer interview experience covering Java, SQL, Selenium, Appium, system design, microservices, interview questions and tips.
Popular Topics
Interview ExperienceCoding ProblemsDatabaseJavaAIInterview QuestionsLow-Level Design (LLD)SQLLanguage-ConceptsCoding Interview
An interview experience is a detailed account of the interview process for a specific role, covering rounds, questions asked, difficulty level, preparation tips and personal insights to help future candidates understand what to expect and how to prepare effectively.
Coding problems are exercises designed to test a programmer’s ability to write logic, solve challenges and apply algorithms or data structures. They help improve problem-solving skills, logical thinking and coding efficiency. Common in interviews and competitive programming, coding problems range from simple tasks to complex algorithmic challenges, preparing developers for real-world software development scenarios.
A database is an organized collection of data. It is the collection of schemas, tables, queries, reports, views, and other objects. The data are typically organized to model aspects of reality in a way that supports processes requiring information. Use this tag if you have questions about designing a database.
Java is a high-level object-oriented programming language. it's firstly released by Sun Microsystems in 1995. Use this tag when you're having queries using or understanding the language. This tag is also applicable to Java libraries and frameworks.
Artificial Intelligence (AI) is the simulation of human intelligence in machines, enabling them to think, learn and make decisions. It powers systems to solve problems, recognize patterns, understand language and adapt over time. AI is used in various fields, including robotics, healthcare, finance and everyday applications like virtual assistants.
Interview Questions are structured queries asked by employers to evaluate a candidate’s technical skills, problem-solving ability, experience, communication skills and cultural fit. These questions can include HR, behavioral, technical, coding and situational topics to assess whether the candidate is suitable for the job role and organization.
Low-Level Design (LLD) defines the internal workings of individual software components. It focuses on class structures, object interactions, methods and data flow. LLD translates high-level architecture into detailed designs using principles like SOLID and design patterns, serving as a blueprint for developers to write clean, maintainable and scalable code.
SQL stands for Structured query language. It is a programming language for storing and processing information in a relational database. It is standard language for accessing and manipulating databases.
This tag is used to understand a basic part of the language.
Coding Interview is a technical evaluation where candidates solve programming problems to demonstrate their problem-solving skills, data structure and algorithm knowledge and coding proficiency. It typically includes writing optimized code, explaining logic and analyzing time and space complexity to assess real-world programming ability.
Popular Articles
Amazon Transaction Logs (example question), Amazon Transaction Logs Interview question
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Top High-Level Design(HLD) Interview Questions and answers, HLD QnA, HLD interview preparation
Learn how to create a primary key in SQL using syntax and examples. Ensure unique records, improve query performance and build table relationships.
how to install docker on amazon ec2 instance. docker installation command on linux machine, docker commands, Commonly Used Docker Commands on EC2
Mastering the Singleton Design Pattern in C#, Singleton Design Pattern in Depth: Structure, Use Cases and Best Practices, in depth design pattern, LLD , low level design
Find the Maximum Subarray Sum | Largest Sum Contiguous Subarray | Kadane’s Algorithm | Maximum Subarray | Given an integer array nums, find the
subarray with the largest sum and return its sum | The Efficient Way to Find Maximum Subarray Sum
install mysql by docker. docker mysql server installation. MySQL is one of the most popular open-source relational database management systems. Docker container is a great way to manage and deploy databases in a portable and isolated environment. In this article, we will walk through the steps by step to install and run MySQL in Docker.
Maximum Product Subarray, Find Maximum Product Subarray in an Array, Given an integer array arr, find a subarray that has the largest product,
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