Technical Tutorials for Software Engineers

Atomicity in Distributed System: Transectional Outbox Pattern: the Boss

This guide explains atomicity distributed in practical terms. Atomicity Distributed is the key idea that connects the examples and decisions covered below.

Scalability in Distributed Systems

Learn scalability distributed through this practical guide. Explore scalability in distributed systems with real-world context and straightforward explanations.

Difference Between Data-at-rest and Data-in-transit

A practical guide to Difference between data-at-rest and data-in-transit for engineers and interview preparation. Understand the concept, work through useful…

Payment API Security Overview

Learn payment api security overview through this practical guide. Payment APIs handle sensitive financial data and transactions, so securing them is critical…

AI Security • Episode 6

Ai Security Tools: What to Use At Each Layer

Explore AI Security Tools: What to Use at Each Layer with real-world context and straightforward explanations. Learn the core ideas, common decisions…

AI Security • Episode 5

Observability in Ai: Ensuring Transparency and Reliability in Machine Learning Systems

Learn observability in ai through this practical guide. Traditional applications are monitored through logs, metrics, errors, and traces. AI applications need…

AI Security • Episode 4

Security in Agentic Ai: Safeguarding Autonomous Decision-making Systems

Learn security in agentic ai: when ai can take action through this practical guide. Explore Security in Agentic AI: Safeguarding Autonomous Decision-Making…

AI Security • Episode 3

Security in Rag Systems: Protecting Data Before It Reaches the Llm

Explore Security in RAG Systems: Protecting Data Before It Reaches the LLM with real-world context and straightforward explanations. Learn the core ideas…

AI Security • Episode 2

Defense Layers in Ai Security: A Comprehensive Technical Overview

A practical guide to Defense Layers in AI Security: A Comprehensive Technical Overview for engineers and interview preparation. Understand the concept, work…

AI Security • Episode 1

Understanding Types of Security Vulnerabilities in Ai Systems

Explore Understanding Types of Security Vulnerabilities in AI Systems with real-world context and straightforward explanations. Learn the core ideas, common…

Security in AI • Episode 1

Security in the Ai World: Challenges, Boundaries, and Best Practices

Learn security in ai world through this practical guide. Artificial intelligence (AI) systems have become integral to modern applications, driving automation…

Load Balancer • Episode 2

AWS Load Balancer Deep Dive: Comparing Alb, Nlb, and Gwlb

Learn aws load balancer deep dive: alb vs nlb vs gwlb through this practical guide. AWS provides different load balancers for different traffic needs. In this…

Security Vulnerabilities • Episode 2

Understanding Security Vulnerabilities Across Edge, Cloud, Deployment, Application, and Database Layers

Learn security vulnerabilities by layer: edge, cloud, deployment, application and database through this practical guide. Modern applications do not fail only…

Security Vulnerabilities • Episode 1

Security Vulnerabilities Explained: Understanding What They Are and Common Types

Learn security vulnerabilities explained: what they are and common types through this practical guide. Security vulnerabilities are weaknesses in software…

Security Vulnerabilities • Episode 4

Understanding Real-world Scenario-based Security Vulnerability Interview Questions

Learn how real-world scenario-based security vulnerability interview questions evaluate practical security expertise, understand their structure, common…

Security Vulnerabilities • Episode 5

Security Vulnerability Best Practices: From Edge to Database

Learn security vulnerability best practices: edge to database through this practical guide. Security is strongest when it protects the entire system, not just…

Security Vulnerabilities • Episode 3

Comprehensive Guide to Security Vulnerability Interview Questions and Answers

Learn security vulnerability interview questions and answers through this practical guide. Security vulnerability questions are common in software, DevOps…

Load Balancer • Episode 4

Understanding Load Balancers Through Real-world Scenarios: A Technical Guide

Learn real-world scenario-based load balancer interview questions through this practical guide. Load balancers are critical components in modern distributed…

Load Balancer • Episode 3

Load Balancer Interview Questions and Answers: In-depth Technical Guide

Explore Load Balancer Interview Questions and Answers: In-Depth Technical Guide with real-world context and straightforward explanations. Learn the core ideas…

Rate Limiting • Episode 1

Real-world Use Cases of Rate Limiting in Production Systems

Learn real-world use cases of rate limiting in production systems through this practical guide. Imagine a concert booking site when tickets go live. Thousands…

Rate Limiting • Episode 4

Do Ai Applications Really Need Rate Limiting?

Learn do ai applications really need rate limiting? through this practical guide. AI applications can become expensive very quickly. A normal API request may…

Rate Limiting • Episode 5

When Not to Use Rate Limiting: Understanding Its Limits and Alternatives

Rate limiting is useful for controlling abuse, protecting expensive APIs, and keeping shared resources fair. But it is not the right solution for every traffic…

Rate Limiting • Episode 2

Rate Limiting Explained with A Simple Real-world Story

Learn rate limiting explained with a simple real-world story through this practical guide. A small coffee shop can explain rate limiting better than a complex…

Event Loop Explained with Examples: How JavaScript Handles Asynchronous Tasks

Discover how the JavaScript event loop manages asynchronous tasks with clear examples, practical insights, and common pitfalls to avoid in production systems.

How to Create Your First Next.js Project: A Practical Guide

Learn how to create your first Next.js project with practical steps, real-world examples, and expert tips to build scalable React applications efficiently.

Build An Ai Chatbot with Next.js: A Comprehensive Guide

Learn how to build a powerful AI chatbot using Next.js with detailed steps, practical examples, and best practices for implementation, security, and operations.

Part 6 - Mastering Binary Search: Learning to Exploit Ordered Data Through the Spark Framework

Learn how to recognize Binary Search in coding interviews, including sorted arrays, boundaries, and search-on-answer problems.

Part 4 - Mastering Hashmap: Learning When Memory Is More Valuable Than Speed

Learn when HashMap helps coding interview problems, how it supports patterns, and how to justify lookup, counting, grouping, and visited-state decisions.

the Spark Interview Workbook: 100 Coding Interview Problems That Train Pattern Recognition Instead of Memorization

Practice 100 coding interview problems through the SPARK framework with signals, properties, assumptions, rejected patterns, and interviewer feedback.

Part 8 - Mastering Heaps & Priority Queues: Learning to Continuously Track the Most Important Element Through the Spark Framework

Learn how to recognize Heap and Priority Queue problems in coding interviews, including Top K, streams, scheduling, and dynamic priority.

Part 7 - Mastering Prefix Sum: Learning to Reuse Previous Work Through the Spark Framework

Learn how to recognize Prefix Sum in coding interviews, compare it with Sliding Window, and use Prefix Sum with HashMap for subarray problems.

Think Before You Code: A Framework for Recognizing Dsa Patterns During Interviews

Learn how to recognize DSA patterns in interviews using signals, properties, reasoning, assumptions, and the SPARK framework.

Part 5 - Mastering Trees: Choosing Between Dfs and Bfs Through the Spark Framework

Learn how to recognize tree problems, choose DFS or BFS, and explain traversal decisions in coding interviews using the SPARK framework.

Part 3 - Mastering Two Pointers: Learning When One Pointer Isn't Enough

Learn how to recognize Two Pointers in coding interviews using SPARK, movement rules, assumptions, traps, and interview reasoning.

Part 2 - Mastering Sliding Window: Learning to Recognize the Pattern Before Writing Code

Learn how to recognize Sliding Window in coding interviews using SPARK, signals, assumptions, traps, and interview reasoning.

How G.s.c.w. Makes You Stand Out in A Whatsapp System Design Interview

Learn how the G.S.C.W. framework helps senior engineers stand out in WhatsApp system design interviews by signaling security, scale, resilience…

the G.s.c.w. Framework: How to De-risk Any System Design Interview Component By Component

Learn the G.S.C.W. framework for system design interviews: Guard, Speed, Crash, and Watch every component for security, scale, resilience, and observability.

the Write-heavy Database Blueprint: Choosing Your Storage Engine By Real-world Use Cases

Learn how to choose databases for write-heavy systems using data shape, consistency needs, and read access patterns across Tinder, Uber, e-commerce…

Ssl Termination for Multi-tenant Saas: Where to Decrypt Traffic Safely

Explore best practices for SSL termination in multi-tenant SaaS environments. Learn where to decrypt traffic safely, avoid common pitfalls, and ensure secure…

Multi-tenant Traffic Routing: How to Route Requests By Tenant in Kubernetes

Learn how to route traffic by tenant in a multi-tenant Kubernetes system using domains, paths, headers, Ingress controllers, load balancers, API gateways…

Building Explainable Ai Systems for Hr

Learn how to design, implement, and operate explainable AI systems tailored for HR applications. Understand frameworks, architecture, governance, and security…

Implementing Machine Learning in Talent Acquisition: A Practical Guide

Learn how to implement machine learning in talent acquisition with a detailed framework covering architecture, governance, security, operations…