Building digital experiences

Fabián
Marín

Senior Full-Stack Developer with over 19 years of experience building scalable web applications.

Medellín, Colombia
19+
Years of experience
10+
Tech Stack
100%
Commitment
Coffee consumed
01

Skills

Frontend
UI & Frameworks
ReactReact NativeNext.jsTypeScriptJavaScript
Backend
Server & APIs
Node.jsExpress.jsGraphQLRESTWCF
Data
Databases
PostgreSQLMySQLMongoDBSQL ServerSequelize
Testing
Quality & Testing
JestReact Testing LibraryPlaywrightCypressK6Integration Tests
DevOps
Infrastructure
DockerGitHub ActionsHerokuAmazon S3CI/CD
AI Development
AI-Assisted Development
ClaudeMCPAI Pair ProgrammingPrompt Engineering
02

Experience

NEORIS · The Home Depot
Jul 2024 → Present
Senior Software Engineer

Fullstack development with React and Node.js across multiple internal applications. Unit testing with Jest and React Testing Library, data fetching with React Query, and performance testing with K6. Working in Scrum methodology delivering continuous improvements.

Growth Acceleration Partners
Nov 2019 → May 2024
Senior Software Engineer

Led migration from Ember.js to React. Built scholarship platform on Next.js, implemented internationalization, state management with Context API, webpack optimization, CI/CD with GitHub Actions, and Node.js backend with Sequelize ORM. Led Node Center of Excellence.

Fénix Cloud
Apr 2016 → Nov 2019
Technical Lead

Defined and architected base architectures for Warehouse Management Systems using AngularJS and PHP Laravel with MySQL. Gathered requirements, optimized warehouse operations, and liaised between technical and business teams.

Cognox
Jul 2015 → Apr 2016
Senior Developer

Consolidated operations across three brands within Línea Directa. Modernized Legacy VB applications to consume RESTful web services. Designed reusable components and REST service contracts.

It-Matica
Aug 2011 → Jul 2014
Senior Developer

Contributed as .NET Developer to the PumpStar project in Miami, streamlining gas purchases with debit cards. Built secure backend systems and APIs, designed scalable architecture, and implemented WCF web services with Viamericas.

03

Key Achievements

Led Node Center of Excellence
Established and led technical standards, best practices, and mentorship programs for Node.js development across the organization at GAP.
5+ Enterprise Platform Migrations
Successfully led multiple large-scale migrations: Ember.js → React/Native, Apache Solr → PostgreSQL, and Legacy VB modernization with RESTful APIs.
React to PostgreSQL: Full Ownership
Architected complete solutions from React/Next.js frontends to Node.js backends with PostgreSQL, including CI/CD pipelines and cloud infrastructure (AWS S3, Heroku).
Comprehensive Testing Practices
Implemented comprehensive testing strategies using Jest, React Testing Library, and K6 for performance testing, ensuring robust and reliable applications.
04

Education

CESDE
Software Developer
2009 – 2011
ITM
Systems of Information
2004 – 2007
05

Languages

Spanish
Native
English
Advanced