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# backend

Desenvolvimento do lado do servidor, APIs, bancos de dados e logica de negocios.

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Designing a Reliable Notification System for 1M+ Users (Push, SMS, Email)

Designing a Reliable Notification System for 1M+ Users (Push, SMS, Email)

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5 min read
The Gamification Data Model: How to Structure Streaks, Achievements, Points & Leaderboards

The Gamification Data Model: How to Structure Streaks, Achievements, Points & Leaderboards

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11 min read
GraphQL in Go looks simple at first: write a schema, run gqlgen, fill in the resolvers. But the real story starts later.

GraphQL in Go looks simple at first: write a schema, run gqlgen, fill in the resolvers. But the real story starts later.

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1 min read
An index made our query faster. It slowly suffocated our database.

An index made our query faster. It slowly suffocated our database.

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5 min read
You might not need… the repository pattern

You might not need… the repository pattern

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9 min read
Spring Boot : Quand @Transactional décide de ruiner votre journée

Spring Boot : Quand @Transactional décide de ruiner votre journée

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2 min read
Arquitetura Rest

Arquitetura Rest

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4 min read
Streak Timezone & DST Handling: The Complete Implementation Guide

Streak Timezone & DST Handling: The Complete Implementation Guide

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10 min read
How to Backfill Achievements for Existing Users in Mobile Apps

How to Backfill Achievements for Existing Users in Mobile Apps

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8 min read
What I Learned Building My First Express Server

What I Learned Building My First Express Server

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5 min read
I Killed a Python Worker Mid-Task. Here's What Should Have Happened.

I Killed a Python Worker Mid-Task. Here's What Should Have Happened.

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4 min read
Why WhatsApp API Integrations Fail: Lessons from Real-Time Systems

Why WhatsApp API Integrations Fail: Lessons from Real-Time Systems

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4 min read
The RED Method: Request Rate, Errors, and Duration as Your Core SLIs

The RED Method: Request Rate, Errors, and Duration as Your Core SLIs

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3 min read
Beyond the Hype: How Google I/O 2026 Secretly Democratized Production-Ready AI Agents with Managed Sandboxes.

Google I/O Writing Challenge Submission

Beyond the Hype: How Google I/O 2026 Secretly Democratized Production-Ready AI Agents with Managed Sandboxes.

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7 min read
How I Built a Test Infrastructure from Scratch (And Why It Saved Our Project)

How I Built a Test Infrastructure from Scratch (And Why It Saved Our Project)

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2 min read
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