Prepare for your Senior Solution Architect interview with these 10 essential questions covering key AWS concepts, microservices architecture, scalability, and system design. Master the critical topics every senior architect should know, from cloud infrastructure to real-time communication solutions. This guide is perfect for those aiming to ace their interview and land a high-paying role in the tech industry.

Introduction In high-demand real-time applications like ride-hailing or booking platforms, maintaining a stable connection between the client and server is crucial. Load balancing for WebSocket connections presents unique challenges, especially in routing the client to the same backend instance consistently. Here, we’ll explore two effective solutions: IP-based sticky sessions and WebSocket routing via session identifiers, […]

Databases are at the core of modern applications, from e-commerce to social platforms, powering billions of transactions every second. In this blog, we’ll explore key concepts that every software engineer should understand—ranging from JOINs, partitioning, sharding, and query optimization to security best practices. This post serves as a comprehensive guide to help you understand, design, […]

1. Singleton Pattern What is it? A design pattern that restricts the instantiation of a class to a single instance. When was it created? Introduced as part of the GoF (Gang of Four) design patterns in 1994. Node.js Support: All versions of Node.js. Why use it? Prevents multiple instances and manages global state efficiently. Best […]

JavaScript has a rich set of operators that make it both powerful and versatile. Some of these operators are well known, while others may be new or lesser-used. Explaining what they are, how to use them, and why they are essential. 1. ?= (Safe Assignment Operator) What is It? The safe assignment operator ?= assigns […]