AdMuse: Local AI for Promotional Content for Small Creative Businesses
This is a submission for the Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle . What I Built Artists and small creative businesses often h…
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Profit & Loss (P&L) for Engineering Leaders
Most engineering leaders can tell you their sprint velocity, their deployment frequency, and their open incident count. Far fewer can tell you what…
Managing Cross-Functional Teams: A Practical Guide for Engineering Leaders
Cross-functional teams are where most modern software gets built. Product defines the problem, design shapes the experience, engineering builds the…
Your Push Request Succeeded. The Device Key Is Dead.
Your server sends a push request and gets a successful response. Somewhere in the target list is a device key that stopped working weeks ago. The re…
Building Long-Running Payment Workflows with Spring Boot and NERV Event
Building Long-Running Payment Workflows with Spring Boot and NERV Event Some payment operations finish in milliseconds. Others don't. Imagine a paym…
Why I Built a Modern Spring Initializr Alternative with Visual JPA & Docker
Whenever I start a new Spring Boot project using standard tools like start.spring.io , the workflow usually looks like this: Select Spring Web, Spri…
WakeRide: Travel. Sleep. We'll Wake You. 🚍💤
Hi everyone! We recently worked on SafeTrack for a hackathon. It focuses on affordable autonomous navigation using smartphone sensors and real-time…
Building a Plugin (Microkernel) Architecture in Java
Ever been asked to add "just one more custom rule" to your application, only to watch your elegant logic turn into a massive, fragile switch stateme…
I got tired of always being three Java versions behind, so I built a little game to fix it
Java ships a new version every six months. I kept telling myself I'd read the release notes "someday". Then I found myself in an interview, staring…
I Built a Java Library to Transliterate Sinhala Text into Latin Characters
I’m sharing Sinhala Transliterator , an open-source Java library I built to convert Sinhala script into Latin characters using predefined mapping ru…
Introducing mvnex v0.1.0: A Native CLI for Faster Maven Workflows
I've been working on a small open-source project called mvnex, a CLI that tries to make some everyday Maven tasks a little more convenient. The goal…
Army vs Hibernate
Army on GitHub: https://github.com/PillArmy/army Every claim about Army below comes from its source ( 0.6.8-SNAPSHOT , Java 25) and the army-example…
The Modular Layer JasperReports’ Powerful Engine Was Missing. Part 1: Where Jasper Came From and Why It Lacked Modularity
Researching such big and complex products as JasperReports, and even more building your own practical tool for it, is clearly not a trend of 2026. T…
Transactional Outbox Pattern: Memory Queue for Speed, PostgreSQL for Recovery
In distributed systems, the Transactional Outbox Pattern is a common way to reliably publish events after a database transaction. The idea is simple…
Redis — история одного падения
Пару лет назад мы устроили настоящее расследование серии инцидентов в поисках скрытого дефекта нашего Redis-клиента. Команда воспроизводила сбои под…
AI-native Tiny Teams — правильный вектор или хайп 2026 года?
В 2026 году из каждого утюга звучит тезис: несколько сильных инженеров с агентами теперь способны делать работу, для которой раньше требовалась полн…
How to Validate Crypto Wallet Addresses Offline in Java
Crypto address validation is one of those small backend features that becomes important very quickly. If you are building a wallet, exchange flow, p…
SimpleDownloader - an Android downloader manager library designed to simplify complex file downloading behind a simple API
SimpleDownloader got new features, API, and improved the stability. SimpleDownloader on GitHub: https://github.com/jeetarc/SimpleDownloader Added on…
Complete Guide to Building a Scalable Java-Selenium Automation Framework
QA Automation - Best Practices Guide Framework: Hybrid Test Automation Framework Stack: Java - Selenium 4 - TestNG - Maven - ExtentReports Project:…
Google Says Go Is Ideal for AI Coding. I Build With Java. Here Is My Honest Rebuttal
Google's developer blog published an argument this week that Go is the ideal language for AI-assisted software engineering ( the post , 430 points a…
Exploring Backend Development with Java!
Looking to delve into backend development using Java? Here are compelling reasons why it's a smart move. Enterprise-Ready: Java is the foundational…
Your Spring AI tests are slow, flaky, and cost money. Here's how to make them deterministic.
You wire up Spring AI, the ChatClient fluent API feels great, your feature works. Then you sit down to write a test — and every good option is bad.…
My Exact Cognizant GenC Interview Experience & Hiring Process (2025–2026)
Well, if you are preparing for Cognizant On-Campus drive, chances are that you already know that it’s a marathon. I went through the entire 2025-202…
DBNavigator – An DataGrip-inspired Database IDE Built with JavaFX
After months of development, I'm excited to share DBNavigator, a cross-platform database IDE that I've been building from scratch using Java and Jav…
I Built a Self-Hosted AI Support Widget with Spring Boot (No Monthly SaaS Fees)
Every new SaaS seems to embed ChatGPT these days. Most AI support solutions rely on third-party platforms, monthly subscriptions, and vendor lock-in…
Building a Multi-Agent Hiring Workflow with LangChain4j and LangGraph4j on Spring Boot
I wanted to actually learn LangChain4j and LangGraph4j beyond the "hello world" chat example, so I built something with enough moving parts to force…
I built a "real job" simulator for Spring Boot learners, free & open source
Most Spring Boot tutorials teach you to build a CRUD app and call it a day. But that's not really what the job looks like day to day, so I put toget…
Mapping Strategies Without the Magic (Chapter 4)
At the end of the previous chapter, I teased that we were about to dive straight into the heavy machinery of DAO implementation - hooking up Spring…
Sole developer on a national SSO platform for six months, with Claude writing most of the code
Solution architect, 17 years in. From roughly March 2026 to July 2026 I was the only hands-on developer on the identity and single-sign-on layer for…
Spring AI: Bringing Generative AI into Spring Boot Applications
Artificial Intelligence has moved from being something handled by specialized data-science teams to becoming a feature that application developers c…