- Engineering
Must-Know Code Quality Practices for Software Engineers
Code quality is not about being fancy — it's about writing code that is readable, testable, secure, and cheap to change. A 12-minute guide with real failures, diagrams, and befo...
Blog
Blog
Field notes from building fintech and SaaS platforms — mostly practical, occasionally opinionated.
- PHP
PHP Memory Cleanup and Memory Leaks: How They Happen and How to Fix Them
A short, diagram-led note on how PHP actually manages memory, why long-running PHP processes (queue workers, CLI scripts, Octane/Swoole apps) leak memory even though "PHP has ga...
- Fintech
AI-Assisted Development in Fintech Engineering: Moving Fast With Claude Code and Copilot Without Breaking Compliance
A short, diagram-led note on using AI coding tools like Claude Code and Copilot to speed up fintech system design and delivery — where they help, where they've caused real produ...
- Tax
Tax Basics for Software Engineers: Integrating Avalara — Tax Fundamentals, Calculations, Tax Services, Regulations, and Risks
A short, diagram-led primer on sales tax for engineers wiring up Avalara — nexus, jurisdictions, tax codes, exemption certificates, the calculate-commit-file lifecycle, real fai...
- Fintech
Idempotency in Payment Systems: How to Stop Double Charges Caused by Retries and Network Failures
A short, diagram-led deep-dive on why duplicate transactions happen, how timeouts and retries turn one payment into two, and how to design idempotency keys properly — with real ...
- Security
XSS Attack, Explained: How It Works and How to Prevent It
A short, diagram-led note on Cross-Site Scripting. What XSS actually is, why unescaped output is the root cause, the three flavours of the attack with real payloads, and the sma...
- Laravel
What is Laravel, and Why Would You Choose It for a Project?
Laravel's core functionalities explained one by one, how each compares to the equivalent in other modern frameworks, why it's far more than a backend framework — frontend, mobil...
- Fintech
Fintech Basics for Software Engineers: Finance, Payments, Laws, and Risk in 15 Minutes
A short, diagram-heavy primer on the finance and payment concepts every fintech engineer needs — money movement, the payment lifecycle, double-entry ledgers, the laws that shape...
- Architecture
Monolithic Architecture Explained with a Real-World Use Case
Monolithic Architecture in plain terms: what "one deployable unit" really means, and one real feature — placing an order — built the monolith way with Laravel and Vue.js. A 10–1...
- Architecture
Onion Architecture Explained with a Real-World Use Case
Onion Architecture in plain terms: the rings, the dependency rule, and one real feature — placing an order — built the onion way in Node.js. A 10–15 minute read.
- Architecture
Hexagonal Architecture Explained with a Real-World Use Case
Hexagonal Architecture (Ports & Adapters) in plain terms: the hexagon, ports vs adapters, and one real feature — registering a user — built the hexagonal way in Node.js. A 10–15...
- Architecture
Clean Architecture Explained with a Real-World Use Case
Clean Architecture in plain terms: the concentric circles, the single dependency rule that makes them work, and one real feature — placing an order in a small e-commerce app — b...
- Security
SQL Injection, Explained: How It Works and How to Prevent It
A short, diagram-led note on the single most famous web vulnerability. What SQL injection actually is, why string-built queries are the root cause, how a real attack unfolds ste...
- Laravel
Laravel Service Container & Service Providers: How Laravel Knows How to Build Things for You
You type-hint an interface in a constructor, and a fully wired object shows up. No `new`, no factory call, nothing that looks like plumbing. This is not magic — it's a container...
- Laravel
Eloquent ORM, Lazy Loading, and the N+1 Query Problem in Laravel
The code that quietly fires a hundred database queries — and how understanding Eloquent's loading model turns a performance disaster into a two-query operation. A complete guide...
- Fintech
Payment Gateways Explained: How Online Payments Work and How to Integrate Them with Laravel
A complete guide to understanding online payment flows and building a clean, extensible payment integration in Laravel — covering architecture, webhooks, security, database desi...
- Engineering
SOLID Principles in PHP & Laravel: Writing Maintainable and Scalable Applications
SOLID is not a checklist — it's a way of thinking about code that makes systems easier to change, test, and extend. This guide walks through every principle with real PHP and La...
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