Fausto Ivan Zamora Arias

Choosing the right tool to manage your AWS infrastructure as a Java developer is a critical decision. In 2026, the landscape has shifted: Terraform is the king of multi-cloud, AWS CDK is the favorite for Java-first developers, and Serverless Framework remains the speed-demon for Lambda-only projects. Below is a comprehensive guide structured as a blog entry to help you navigate these choices. Java on AWS: The Great IaC Showdown (2026 Edition) As a Java developer, your super-power is "strong typing" and a robust ecosystem. When you move to the cloud, you shouldn't have to leave those behind to write thousands of lines of YAML. Whether you're deploying a Spring Boot app on ECS or a high-scale Lambda function, here is how the top tools compare. 1. The Contenders: Who are they? AWS CDK: The "Infrastructure as Code" Purest CDK allows you to write your infrastructure in Java. It feels like writing a standard Java library. It "synthesizes" your...

Windows Server vs RedHat for Modern Hosting Windows Server (including 2025) is traditionally strong for legacy, .NET Framework , Active Directory , and Hyper-V virtualization. Hyper-V is a hypervisor — meaning it is designed to run full Virtual Machines . Each VM boots its own full OS. This is great for old workloads or isolating entire OS instances, but it is heavy for modern microservices. RedHat Enterprise Linux ( RHEL ) and its family (CentOS, Rocky, AlmaLinux) were designed much closer to the container ecosystem . Linux was the birthplace of Docker , containers , and Kubernetes . The kernel features containers depend on (cgroups, namespaces) were invented in Linux. That is why RedHat integrates better with container runtimes (containerd, CRI-O) and Kubernetes cluster nodes. So if someone asks “which is better for containers? Windows or RedHat?” — the modern industry answer is: RedHat or any Linux distro is the natural native home of containers . The Scenario: I want...

Design of an Internet Banking System with AWS by Fausto Iván Zamora Arias In today’s digital era, online banking systems have become essential for delivering secure, efficient, and user-friendly financial services. This article presents a comprehensive design for a modern Internet Banking System, leveraging proven cloud technologies and architectural best practices. By breaking down the system through multiple levels of abstraction—from high-level context and container diagrams to detailed internal components—you’ll discover how each part interacts to provide seamless authentication, robust transaction handling, multi-channel notifications, and reliable data auditing. Whether you’re a developer, architect, or simply interested in fintech, this overview offers valuable insights into building scalable and secure banking solutions. Level 1: Context Diagram The system interacts with 7 main actors: Bank Client: End user who accesses services thro...