Systems Design & Architecture

Introdução O TypeScript oferece várias formas de combinar tipos para criar estruturas mais...

Setting up a scalable backend application requires a clear separation of concerns. While FastAPI...

Most backend systems look simple, until they don't. A single server, a database, with requests coming...

Reflecting on two major technical challenges from my backend engineering internship, focusing on...

When we open a webpage, the browser doesn’t immediately show everything. It follows a sequence of steps to turn code into pixels on the… Continue reading on Med

Hi everyone, I've been working on a web framework called Slick and I'd love to get feedback from other web developers. The goal is to stay as close as possible

Table of Contents What Does the PID Temperature Control Algorithm Control in Commercial...

Why the industry’s favourite architecture is being rethought — and what that means for the systems you use every day. Continue reading on Medium »

Microservices solve an org problem you don't have yet. Here's the distributed-systems tax you pay before product-market fit, and when to split.

Timeout as a first-class saga state, idempotent compensation, and the unhappy path your test suite quietly skips.

The Challenge: Millions of Drivers, Every 4 Seconds Answer-first: Uber and Grab handle...

The System Design Interview framework to crack FAANG/MAANG Interviews in 2026 Continue reading on Javarevisited »

How extends constraints, conditional types, and infer let you pull a type out of another type. Unwrap a Promise, an array, and build a tiny DSL.

Tag your union, switch on the discriminant, and let assertNever turn a forgotten variant into a compile error instead of a 2am page.

Plain-struct domain events, an in-process dispatcher, and a transactional outbox. No event bus library, no message broker required.

A repository is a domain port, not an ORM wrapper. Keep SQL at the edge with sqlc and pgx, map rows to aggregates, and keep the core clean.

When software engineers talk about scaling applications to handle thousands of concurrent clients, the immediate and instinctive answer is… Continue reading on

A reflection on performance optimization at scale and building reliability mechanisms; two tasks that...

Topology rewrite not bug repair. A single line. Hold it. More as the build matures. — chiefmojo79

Passing the certification is the easy part. Here's what actually matters when you're using...

Because scale exposes what success hides Continue reading on Medium »

Most code does not fail because it is complex. It fails because nobody can understand it two weeks later. Continue reading on Medium »

A step-by-step guide to prepare for System Design Interviews for FAANG and non-FAANG companies

A comprehensive guide to classes, objects, inheritance, interfaces, generics, records, lambdas, and modern Java design principles. Continue reading on Medium »

A beginner-friendly but deep guide to Linux system calls in C — from basics to internals through practical experiments Continue reading on Medium »

More flexible than lock_guard: unlock mid-scope, defer locking, try once, and the one wrapper condition_variable requires. Continue reading on Medium »

As a Tech Lead overseeing automation operations, the fastest lesson you learn is that scaling RPA has nothing to do with writing faster… Continue reading on Med

Architecture preempts the experiment. A single line. Hold it. More as the build matures. — chiefmojo79

I have been making a bowling alley operating system and for some reason my kernel wont boot --BOOT-- [BITS 16] [ORG 0x7C00] start: mov si, msg .print: lodsb or

Concurrency is byproduct of capability design not bottleneck to patch. A single line. Hold it. More as the build matures. — chiefmojo79

(The Hidden Risk of Tight Coupling Between Orchestration and Data Layers) Continue reading on Medium »

Architecture preempts the experiment. A single line. Hold it. More as the build matures. — chiefmojo79

The Architectural Shift: Client-Side vs. Server-First For years, the standard for building...

This is for Python and I'm trying my hand at asking people instead of AI. Let us say there are three character attributes, and under each attribute are a set of

A breakdown of SSR, CSR, SSG, and ISR with real code examples and honest tradeoffs — written by someone who was genuinely confused about this for way too long.

A real-world guide to logging: what to log, formats, PID, remote logging, and how it saves hours of debugging and revenue loss Continue reading on Medium »

Imagine programming a software for a dealership. You implement the core functions and data which are necessary for receiving payments… Continue reading on Mediu

This is where junior level developer struggles to choose the loop !!!! Continue reading on Medium »

Mastering Concurrency with the Sleeping Barber Problem Hey there, fellow coder! Today,...

Quick intro about me. I am a backend engineer mostly focused on distributed systems and databases. I...

Introduction: From the History of the “Integral” to the Real-Time Observation of the “Derivative” Continue reading on Medium »

Two users edit the same document at 9:03 AM. No locking. No coordination. Just two clients writing to...

This morning I was working on a design document. The task was clear: build a self-check mechanism...

One of the most challenging pieces of work I have encountered isn't building software from scratch....

I told the interviewer the Redis cache was probably overkill. He told the recruiter I “lacked architectural ambition.” Continue reading on Stackademic »

Imagine you're building an app that needs to perform a task every 5 minutes. Examples: Send...

Covers: Two-Phase Commit, Saga Pattern, Choreography vs Orchestration Sagas, Compensating...

Topology rewrite not bug repair. A single line. Hold it. More as the build matures. — chiefmojo79