Fausto Ivan Zamora Arias

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...

Improving LLMs CAG with accumulative knowledge using RabbitMQ, Ollama and Gemma3 Why RabbitMQ ? Thinking about an LLM that will receive a lot of messages from everywhere means that you need to keep track of its messages and responses so the context could be understood on the whole conversation. Remember that it can't be just a stream every time; sometimes users would appear after days or months, and the sense of knowing the person should be stored. Now, storing is just one part of the solution for retaining context. We all have heard about RAG and CAG, but what happens if I need to store the information in real-time? You know, users keep sending messages. So the saving and retrieving messages would be blocking the AI's response time. Therefore, I figured why not use a queue system that notifies a consumer about new messages, stores them in a DB, so t...