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TL;DR Our SOC’s RAG pipeline retrieves over 142,000 closed XSOAR security tickets to ground investigation answers. After exhausting the easy wins — chunking, top-k, reranker choice — we still saw Continue reading Teaching a Reranker the Language of Security Tickets (+41% MRR@10)→

Understanding the Issue with Hibernate 6.7 Moving to Hibernate 6.7 can bring significant updates and improvements in your applications, but it can also introduce new issues with the code that Continue reading How to Fix Hibernate 6.7 Null Pointer Exception in Kotlin→

I had three pull requests open against the same project. Sixteen, eighteen, twenty days. No review comments. CI hadn’t fired on any of them. I started typing the standard seven-day-nudge Continue reading Read the base-branch column.→

I am so tired of opening my code editor and seeing the same AI-generated dashboard. Same layout. Same gradient. Same components. It all looks like it came out of the Continue reading AI Companies Are Paying Millions for Your Old Reddit Posts. Here’s Why That Should Concern You.→

If you’ve built an AI content pipeline, you’ve hit the wall. Not the “model isn’t good enough” wall — the operational one. The pattern is always the same: You start Continue reading Why Most AI Content Pipelines Fail at Scale (And How to Fix It)→

### Introduction If Infrastructure as Code (IaC) is the concept of managing infrastructure using code, then Terraform is one of the most powerful tools that brings it to life in Continue reading Terraform in Real Life — Building Your First Cloud Infrastructure Step by Step→

5 Principles of Survival for Software Engineers Adapted from Leon Business School’s “5 Principles of Survival” Your stack won’t save you. Your principles will. In the wild, survival isn’t about Continue reading 5 Principles of Survival for Software Engineers→

I recently open-sourced SysMonitor, a native macOS menu bar app for tracking system resources like CPU, RAM, Disk I/O, and Network speeds. I built it because I was tired of Continue reading Building a Native macOS Menu Bar Widget with SwiftUI and Glassmorphism→

In 2017 I was maintaining a Node.js ecommerce server when a new project landed on my desk — an IoT platform for vehicle tracking devices. Thousands of devices, transmitting data Continue reading I built a Go microservices framework in 2017. Here’s what 8 years of production taught it.→

Prepare Docker Image at ECR If you don’t have an image at ECR, please check this article and get it. Push Docker image to AWS ECR In this article, I Continue reading Create an ECS Fargate Service Step by Step→

Originally published in Japanese on Qiita. This is the English edition. TL;DR Business requirements that touch the Japanese Rokuyo calendar are surging in the LLM era — wedding-date pickers, moving-day Continue reading Stop hand-coding the Japanese Rokuyo calendar: LLM-generated lunar logic silently breaks→

Visão Geral Executiva A introdução das expressões lambda no Java 8 representou uma inflexão estratégica para a linguagem, trazendo elementos da programação funcional que visam não apenas a redução de Continue reading Lambda Expressions em Java: Da Teoria à Arquitetura Funcional com Alta Coesão→

If you’re exploring a career in data, you’ve probably seen both titles everywhere — job boards, LinkedIn, bootcamp brochures. They both work with data, often sit on the same team, Continue reading Data Engineer vs. Data Scientist: What’s the Difference? (2026 Guide for Beginners)→