Hi, my name is

Marco A. Garcia

Sr. Full-Stack Developer & Systems Architect

I build scalable, AI-powered enterprise systems with a strong focus on clean, mantainable code. Specialized in fintech, data science, and creating tools that help developers ship better code. Based in Guadalajara, Mexico.

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Marco A. Garcia - Full-Stack Developer and Systems Architect
01.

About Me

I grew up in Mexico, where I developed a deep fascination with how systems work at scale. Clean Architecture and domain-driven design became more than patterns to me. They became a philosophy for building software that lasts.

My journey took me from building AI-powered dialing systems with IBM Watson at Muttech, to creating a full legal tech platform from scratch at Justicia Laboral, to implementing Machine Learning models for contract renewal prediction at Finexitus.

Today, I architect interconnected fintech systems — integrating Plaid for US markets, building daily workloads for financial recommendations, and leading a team focused on AI-first, maintainable code. I also teach over 2,000+ developers through my YouTube channel, because I believe knowledge compounds when shared.

02.

Experience

Sr. Systems Architect @ Finexitus

Mar 2023 - Feb 2026

Remote

Creating solutions in a fintech space offering solutions that improve conversion rate and contract renewal.

  • Development of Machine Learning model for detecting customers prone to renewing contracts, useful for determining follow-up and persuasion strategies
  • Integration with SignNow for digital contract signing, improving UX and increasing contract signatures by 60%
  • Implementation of Clean Architecture in ERP developed from scratch, improving project maintainability and faster onboarding for new team members
  • Architecting three interconnected systems: Plaid integration for US markets, daily workloads for financial recommendations, and AI-first maintainable code
Next.jsTypeScriptPythonMachine LearningClean ArchitecturePlaidSignNow
03.

Skills & Expertise

Languages & Frameworks

TypeScriptJavaScriptPythonPHPNext.jsReactNode.jsNestJSExpressLaravel

AI & Data Science

Machine LearningDeep LearningNLP / Sentiment AnalysisPySparkNumPy / PandasTensorFlowRAG PipelinesIBM WatsonMLOpsSocial Network Analysis

Architecture & Patterns

Clean ArchitectureHexagonal ArchitectureCQRSDomain-Driven DesignMicroservicesDesign PatternsSOLID PrinciplesEvent-Driven

Databases & Infrastructure

PostgreSQLMySQLMongoDBSQLiteSupabaseDockerAWSRedis
04.

Projects & Open Source

Scaffolding CLI

Clegen

CLI tool to automate Hexagonal Architecture scaffolding for TypeScript projects. V6 includes AI flags designed for better context windows with Claude Code and Cursor.

TypeScriptNode.jsCLI
26
AST-powered refactoring

ReType CLI

Refactoring tool that works directly with the TypeScript AST. Search, rename, extract, find references, detect dead code, and fix imports -- all while keeping your entire project in sync.

TypeScriptASTCLIRefactoring
Full AI-powered legal platform

Justicia Laboral

Platform democratizing labor rights information through RAG-powered AI and automated legal contract generation. Built from scratch with context-aware AI for companies to interact with their legal data.

Next.JSPostgreSQLRAGAINLP

Other Noteworthy Projects

25

Node.js Hexagonal Architecture

Educational repository demonstrating Hexagonal Architecture patterns with Node.js, Express, and TypeScript.

TypeScriptNode.jsExpress
18

NestJS + TypeORM + Supabase Hexagonal

Production-ready template combining NestJS, TypeORM, and Supabase with hexagonal architecture patterns.

NestJSTypeORMSupabase
5

React Hexagonal

Frontend architecture template applying hexagonal architecture principles to React applications.

ReactTypeScriptClean Architecture
4

Node.js CQRS

Educational project for learning CQRS with Node.js, TypeScript, MongoDB, and SQLite.

Node.jsMongoDBSQLiteCQRS

SEC Blaster

AI-powered automated dialing system using IBM Watson for connecting customers with collection agents within SEC.

IBM WatsonJavaScriptPHPAI

Difrai

Active open source project exploring AI-driven development workflows and automation.

TypeScriptAI
05.

Education & Certifications

Education

Tecnologico de Monterrey

Data Science and AI

Aug 2024 - Present

UVEG

Engineer's degree, Computer Science

Aug 2021 - Aug 2023

Certifications

Neural Networks and Deep Learning

DeepLearning.AI

Aug 2025

ID: 79Q9ZDGAS9Z2

Data Science and AI: Del Concepto a Desarrollo de Aplicaciones

Tecnologico de Monterrey

Jun 2025 / 160 hours

ID: 152347973

06. What's Next?

Let's Build Something Together

I'm currently open to new opportunities where I can contribute with my expertise in full-stack development, AI/ML, and systems architecture. Whether you have a question, a project idea, or just want to say hi, my inbox is always open.

Say HelloConnect on LinkedIn
Guadalajara, Mexico