Welcome to Xavi's Projects

Playground and showcase for modern backend architectures, system design patterns, and full-stack experimentation.
I’m Xavier, a backend-focused software developer exploring cloud, APIs, and frontend integration.

How I Design Systems

Every project is built to be a learning experience, starting simple, but structured for future scalability. Expect layered architectures, robust API boundaries, and intentional trade-offs between impact, speed and maintainability.

Cloud-native first: AWS, containerization, and CI/CD
Testable APIs: REST, event-driven patterns, and contract validation
Clean separation between frontend skins and backend logic

How to Navigate This Site

Projects: Explore hands-on builds. Each project page details its purpose, architecture, and code links.
System Design: Deep-dives into design patterns, architectural choices, and migration strategies.
Blog / Changelog: Reflections, lessons learned, and “aha” moments along the way.

Current Projects

Kafka Visualizer

Monitor and understand real-time message flows in distributed systems using Apache Kafka.

In Progress

Text Message Service Interface

A frontend UI for testing and visualizing backend messaging API integrations.

Prototype

Stock Watchlist

A Frontend UI to pull stock information for the day from the Yahoo Finance API.

In Progress

Real-Time Alerts

A project that will incorporate the Text Message Service and Stock Watchlist to provide real time alerts based off indicators.

Exploring

Strategy Backtester

This will serve as a pre-cursor to Bot Maker to start building the infrastructure to store analytical data and display it via the displaying and analysis of indicators created in Stategy Backtester

Exploring

Bot Maker

An experimentation ground for algorithmic trading / general ML bots and analytics tools.

Exploring

[System architecture visual coming soon]

Ideas to Expand This Portfolio

API Sandbox & Live Demo

Interactive playgrounds for each backend service, letting visitors experiment with your APIs in real time—showcasing live request/response and code snippets.

Architecture Deep-Dives

Clickable diagrams and write-ups for major projects—walk through the decisions, trade-offs, and lessons learned, helping recruiters see your system-level thinking.

Project Evolution Timeline

A visual timeline or changelog, tracking your tech growth, migrations, and major learning moments. Highlights your iterative process and adaptation to new tech.