spring-boot Learning Spring Boot from Zero to Cloud: Part 30 – Bean lifecycle PostConstruct, PreDestroy, others josedacruz, May 16, 2025May 16, 2025 Welcome to this video in our Spring Boot series! 🎯In this episode, we explore how Spring manages the lifecycle of beans, focusing on the powerful annotations @PostConstruct and @PreDestroy. This is part of a larger series where we help developers master Spring Boot through concise, practical, and real-world examples. 🔍… Continue Reading
puzzles and challenges Interview questions & puzzles: Ep2 – The Two Egg Problem, A Strategy Puzzle for Engineers, Testers, and Architects josedacruz, May 14, 2025May 14, 2025 Welcome to a deep dive into one of the most fascinating logic puzzles in engineering and algorithm design: The Two Egg Problem. This isn’t just a puzzle — it’s a masterclass in decision-making under constraints, testing strategy, and optimization thinking. Whether you’re prepping for tech interviews or building resilient systems,… Continue Reading
observability Observability: Introduction, architecture and Logs, Metrics & Traces Explained (Ep. 01) josedacruz, May 14, 2025May 14, 2025 Observability: Introduction, architecture and Logs, Metrics & Traces Explained (Ep. 01) 🎥 Welcome to the first episode of our Observability series!In this video, we’ll break down Observability 101—from the core concepts to the tools and practices you need to get started. Whether you’re an SRE, developer, or architect, this intro… Continue Reading
spring-boot Learning Spring Boot from Zero to Cloud: Part 29 – @Configuration @Beans and RowMappers? josedacruz, May 13, 2025May 13, 2025 Welcome to another video in our Spring Boot Deep Dive series!In this episode, we explore a powerful but often misunderstood part of the framework: @Bean methods inside @Configuration classes. If you’ve ever wondered when to use @Bean instead of @Component, how Spring wires your dependencies behind the scenes, or how… Continue Reading
architecture How to Be a Software Architect: Think Like a Strategist, Build Like a Visionary (EP01) josedacruz, May 10, 2025May 10, 2025 Welcome to the first episode of our series on software architecture!This isn’t just about tech stacks and buzzwords — it’s about how architects think, decide, and lead. If you’re a developer ready to elevate your impact, or an aspiring architect who wants to make decisions that shape systems, this episode… Continue Reading
spring-boot Learning Spring Boot from Zero to Cloud: Part 28 – Scope Prototype, ApplicationContext, ObjectFactory josedacruz, May 9, 2025May 9, 2025 In this video, we take a comprehensive look at prototype scope in Spring Boot, when and how to use it, and the best practices around injecting prototype-scoped beans into singleton-scoped components. This is part of a growing series, so make sure to check the playlist for more hands-on Spring Boot… Continue Reading
decision-frameworks Decision Frameworks | Ep. 3 – Mastering Timeboxing josedacruz, May 7, 2025May 7, 2025 Continue Reading
spring-boot Learning Spring Boot from Zero to Cloud: Part 27 – Bean Scopes, Singleton and some Telemetry josedacruz, May 6, 2025May 9, 2025 In this video, we dive deep into the most common and default bean scope in Spring Boot: Singleton. You’ve probably used it a hundred times without thinking — but do you really know how it works under the hood and why it’s used by default? We’ll walk through real-world examples… Continue Reading
spring-boot Learning Spring Boot from Zero to Cloud: Part 26 – Interfaces in Beans and Ambiguity Explained josedacruz, May 4, 2025May 4, 2025 Continue Reading
puzzles and challenges The Two Doors Puzzle: A Lesson in Asking the Right Questions josedacruz, May 1, 2025May 1, 2025 What Is the Two Doors Puzzle? Imagine this: you’re standing in front of two doors. One of them leads to freedom. The other—death. There are also two guards: You can ask only one question to one of the guards to figure out which door leads to freedom. So, what do… Continue Reading