San José, Costa Rica
Available for hire

Ronny Freites

Ronny Freites

About Me

Senior Software Engineer with 9+ years of experience specializing in enterprise full-stack development, serverless architecture, e-commerce platform engineering, and AI-powered solutions. Proven track record of architecting and maintaining mission-critical systems processing millions of events daily, with expertise in GraphQL optimization, third-party integrations, scalable system design, and artificial intelligence integration.

9+ Years Experience

Deep expertise in full-stack development, cloud architecture, and modern web technologies

AI-Powered Solutions

Building intelligent systems with LangChain, OpenAI, and cutting-edge AI technologies

Technical Leadership

Led teams of 6+ developers across multiple enterprise-level projects

54+ Certifications

Continuous learning across AI/ML, cloud platforms, and development frameworks

High-Scale Systems

Architected platforms processing millions of transactions daily with 99.9% uptime

Community Leader

10+ years leading CostaRicaJS community and contributing to open source

Career Journey

9+ years of experience building enterprise-scale solutions, leading teams, and driving innovation

AI Software Engineer Consultant
Self Employed (Freelance)
Aug 2025 - Present
San José, Costa Rica - Remote

Delivering AI-powered software solutions and consulting services, specializing in artificial intelligence integration, software design, and innovative product development.

Key Achievements

  • AI Integration Leadership: Leading development of intelligent systems leveraging cutting-edge AI technologies including LangChain, Google AI SDK, and Model Context Protocol
  • Product Innovation: Building AI-powered solutions that solve complex business problems with focus on scalability and user experience

Tech Stack

Artificial Intelligence
LangChain
Model Context Protocol
Software Design
Product Development
Senior Software Engineer
LoudCrowd
Apr 2022 - Jul 2025 (3 years 4 months)
Remote

Architected and maintained a mission-critical enterprise serverless platform processing millions of e-commerce events and transactions daily.

Key Achievements

  • Impact Affiliate Network Integration: Spearheaded development of robust web event processing pipelines handling 45+ days of historical data with sophisticated error handling and automated retry mechanisms
  • Creator/Ambassador Platform: Architected comprehensive influencer marketing platform with dynamic tracking link generation, real-time analytics dashboards, and commission calculation engines
  • Performance Optimization: Implemented advanced database query strategies and intelligent product sorting algorithms, directly contributing to improved system reliability and increased revenue generation
  • Technical Innovation: Developed expandable widget system with multiple positioning options, enabling seamless product link integration across various platforms

Tech Stack

Python Flask
AWS Lambda
React
TypeScript
Apollo GraphQL
PostgreSQL
AWS RDS
AWS CDK
Serverless Framework
Senior Software Engineering Consultant
Gorilla Logic
Sep 2021 - Apr 2022 (8 months)
Costa Rica

Led transformation of legacy .NET system into modern serverless architecture for Submittable's Grant Management system.

Key Achievements

  • Legacy System Migration: Successfully migrated existing .NET Core system to React with AWS Lambda serverless functions
  • Technical Leadership: Provided strategic planning and execution guidance, mentoring junior developers on project expectations and scalable architecture best practices
  • Modern Frontend Development: Implemented React application using Hooks, Context API, and Redux for effective state management
  • Payment Integration: Implemented Payoneer integration for fund withdrawals and payment processing

Tech Stack

ReactJS
AWS Lambda
.NET Core
Redux
Jest
React Testing Library
Technical Lead
OMNiLabs
Nov 2018 - Sep 2021 (2 years 11 months)
Costa Rica - Remote

Led team of six full-stack developers in developing comprehensive payment gateway project with QR code-based retail payment solutions.

Key Achievements

  • Team Leadership: Managed and mentored team of six developers through complex technical challenges
  • Payment Gateway Architecture: Designed and implemented complete payment system with external payment integrations and mobile application support
  • QR Code Innovation: Successfully implemented QR code-based payment solution specifically tailored for retail-level payment reception
  • AWS Infrastructure: Optimized performance using AWS Lambda functions and Serverless.com infrastructure management

Tech Stack

TypeScript
Node.js
React Native
AWS Lambda
Serverless Framework
Senior Full Stack Developer
Critical Mass
Nov 2016 - Nov 2018 (2 years 1 month)
Costa Rica - On-site

Led development of international Marriott Hotels website, focusing on accessibility, performance, and user experience for Fortune 500 client.

Key Achievements

  • Enterprise WordPress Development: Led development of international Marriott site with custom plugin for business locations showcase
  • Advanced Filtering Systems: Designed comprehensive plugin with region and brand filters for managing substantial information volumes
  • Accessibility Excellence: Implemented advanced accessibility techniques and screen reader integration for inclusive user experience
  • Technical Mentorship: Mentored team members and contributed to solving complex challenges with innovative solutions

Tech Stack

WordPress
PHP
jQuery
MySQL
Custom Plugin Development

Technical Arsenal

Full-stack expertise across modern technologies, cloud platforms, and AI integration

12 techs
Backend Technologies

Server-side development with modern languages and frameworks

TypeScript
Python
JavaScript
Node.js
Flask
.NET Core
Express.js
Django
PHP
C#
Go
Java
12 techs
Frontend Technologies

Modern UI/UX development with cutting-edge frameworks

React
Next.js
Astro
Angular
React Native
Apollo Client
Remix
Material-UI
Tailwind CSS
Redux
Webpack
Vite
9 techs
Databases & Storage

Relational, NoSQL, and cloud database solutions

PostgreSQL
MySQL
MongoDB
Redis
SQLite
Prisma
Alembic
SQLAlchemy
DynamoDB
11 techs
Cloud & DevOps

Cloud infrastructure and containerization

AWS Lambda
AWS RDS
AWS S3
CloudFormation
Google Cloud
Docker
Vercel
Fly.io
Serverless Framework
Git
GitHub Actions
8 techs
AI & Machine Learning

Artificial intelligence and ML integration

Google AI SDK
OpenAI APIs
LangChain
LangGraph
pgvector
Semantic Search
Prompt Engineering
Model Context Protocol
10 techs
Integration & APIs

E-commerce, payment, and third-party integrations

Shopify
Stripe
GraphQL
REST APIs
WooCommerce
Instagram API
TikTok API
Klaviyo
Impact Radius
Microservices
Architecture Patterns:
Serverless
Microservices
GraphQL
REST APIs
Event-driven

Technology Honeycomb

Explore my technical expertise through an interactive hexagonal visualization. Hexagon size represents proficiency level.

All Technologies
Backend
Frontend
Database
Cloud & DevOps
AI & ML
Integrations
TypeScriptPythonNode.jsFlaskReactNext.jsTailwind CSSApolloClientPostgreSQLPrismaMySQLAWS LambdaAWS RDSAWS S3DockerGoogleAI SDKOpenAI APIsPromptEngineeringGraphQLREST APIsShopifyJavaScriptExpress.js.NET CoreDjangoAstroAngularReact NativeMaterial-UIReduxMongoDBRedisSQLAlchemyCloudFormationGoogle CloudVercelServerlessGitLangChainpgvectorSemanticSearchStripeWooCommerceMicroservicesPHPC#GoJavaRemixWebpackViteSQLiteAlembicDynamoDBFly.ioGitHubActionsLangGraphModelContext ProtocolInstagramAPITikTok APIKlaviyoImpactRadius
Expert
Advanced
Intermediate
Beginner
62
Technologies
21
Expert Level
6
Categories
9+
Years Experience

Featured Projects

Showcasing innovative solutions across AI/ML, e-commerce, and enterprise platforms

⭐ Featured
AI Powered Real Estate App
Lead Developer

AI-powered real estate platform for Costa Rica properties with advanced semantic search and multi-language support.

AI/ML

Technical Highlights

  • Google AI SDK for automated content generation and 13-language translation
  • Vector-based property search using pgvector extension
  • Google Cloud Vision and Video Intelligence API integration

Tech Stack

Next.js 15
TypeScript
PostgreSQL
Prisma
Material-UI
Google Cloud APIs
Firebase
pgvector
⭐ Featured
Astro WordPress Starter
Open Source Project

Modern headless WordPress starter demonstrating best practices for performance-optimized content sites.

Open Source

Technical Highlights

  • WordPress backend with Astro frontend for optimal performance
  • Full TypeScript integration with auto-generated GraphQL types
  • Yoast SEO integration with proper meta tag handling

Tech Stack

Astro 4.x
TypeScript
WordPress
WPGraphQL
Apollo Client
Docker
⭐ Featured
Enterprise Serverless E-commerce Platform
Senior Software Engineer

Mission-critical serverless platform processing millions of e-commerce events and transactions daily.

Enterprise

Technical Highlights

  • Impact Affiliate Network integration with 45+ days historical data processing
  • Creator/Ambassador platform with dynamic tracking and analytics
  • Advanced database query optimization for revenue generation

Tech Stack

Python Flask
AWS Lambda
React
TypeScript
Apollo GraphQL
PostgreSQL
AWS CDK
ShipEase Commerce Platform
Founder & Lead Developer

Full-stack e-commerce platform with Shopify integration and Spanish localization.

E-commerce

Technical Highlights

  • Complete e-commerce solution from concept to production
  • Shopify integration for inventory management
  • Spanish language support for international markets

Tech Stack

Next.js
TypeScript
Shopify API
Stripe
PostgreSQL
Tailwind CSS

Learning Showcase

Continuous learning journey with 32+ professional certifications

Spanning AI/ML, modern development, cloud infrastructure, and enterprise technologies

Showing 32 certifications
Foundation: Introduction to LangGraph

LangChain

Sep 2025
AI/ML
Claude Code in Action

Anthropic

Aug 2025
AI/ML
Introduction to Model Context Protocol

Anthropic

Aug 2025
AI/ML
Building a Machine Learning Ready Organization

AWS

Jan 2025
AI/ML
Developing Generative Artificial Intelligence Solution

AWS

Jan 2025
AI/ML
Developing Machine Learning Solutions

AWS

Jan 2025
AI/ML
Essentials of Prompt Engineering

AWS

Jan 2025
AI/ML
Exploring Artificial Intelligence Use Cases and Applications

AWS

Jan 2025
AI/ML
Fundamentals of Machine Learning and Artificial Intelligence

AWS

Jan 2025
AI/ML
Optimizing Foundation Models

AWS

Jan 2025
AI/ML
Responsible Artificial Intelligence Practices

AWS

Jan 2025
AI/ML
Security, Compliance, and Governance for AI Solutions

AWS

Jan 2025
AI/ML
Fullstack TypeScript (feat. GraphQL & Node.js)

Frontend Masters

Oct 2024
Development
Introduction to Backend Architectures

Frontend Masters

Oct 2024
Development
Practical Python

Frontend Masters

Oct 2024
Development
Astro for Fast Website Development

Frontend Masters

Sep 2024
Development
Enterprise TypeScript

Frontend Masters

Sep 2024
Development
Making TypeScript Stick

Frontend Masters

Sep 2024
Development
Intermediate TypeScript, v2

Frontend Masters

Jul 2024
Development
TypeScript 5+ Fundamentals, v4

Frontend Masters

Jul 2024
Development
Ultimate AWS Certified Cloud Practitioner

Udemy

Dec 2020
Cloud
AWS CloudFormation - Infrastructure as Code

Udemy

Oct 2019
Cloud
Introduction to AWS Lambda

AWS

Dec 2018
Cloud
Developer - Beginner Linux Containers

Docker

May 2017
Cloud
C# Masterclass

Udemy

Dec 2020
Development
Project Management: Master Project Management - PMP/PMI

Udemy

Dec 2020
Other
Learning Django

LinkedIn

Feb 2020
Development
Using Python for Automation

LinkedIn

Feb 2020
Development
ASP.NET Core Development

Microsoft

Apr 2017
Development
Magento 2 Theming

Adobe Commerce

Jan 2017
Development
Angular 2 Developer with TypeScript

Udemy

Oct 2016
Development
WordPress Professional Course

Platzi

May 2016
Development

View complete certification list on LinkedIn

View All Certifications on LinkedIn

Open Source Contributions

Contributing to the developer community through open source projects and community leadership

217
Repositories
50
Stars
30
Forks
1447+
Contributions

Featured Projects

costaricajs.github.io
Official website for Costa Rica's JavaScript community - Central hub promoting modern web development practices and technologies across 500+ developers.
17
5
HTML
community
javascript
costa-rica
View Project
Fundamentos-de-JavaScript
Comprehensive JavaScript fundamentals book for Spanish-speaking developers - Educational resource covering core concepts and modern best practices.
15
8
Markdown
javascript
education
spanish
View Project
ronnyfreites
Personal portfolio and professional website built with TypeScript - Showcasing projects, technical expertise, and professional experience.
5
2
TypeScript
portfolio
nextjs
typescript
View Project
wordpress-migrate-tool
Automated WordPress site migration utility - Simplifies complex migration processes between WordPress installations.
3
1
JavaScript
wordpress
migration
automation
View Project
.claude
Personal Claude Code configuration with specialized AI agents, command templates, and GitHub workflow automation tools.
2
0
Markdown
claude
ai
automation
View Project
astro-wp
Modern headless WordPress starter with Astro 4.x - Performance-optimized content sites with WP-CLI support and Docker development.
0
0
TypeScript
astro
wordpress
headless-cms
View Project

Community Impact

CostaRicaJS Leadership

10+ years leading Costa Rica's premier JavaScript community with educational resources

500+ developers reached

Open Source Contributions

1,447+ contributions across 217 public repositories and private ShipEase projects

217 repositories

Technical Speaking

WordCamp San José speaker (PHP7 features) and JavaScript technical evangelist

200+ attendees

Mentorship & Education

Created JavaScript fundamentals book and mentored 50+ junior developers

50+ developers mentored

Services & Consulting

Specialized software engineering and AI consulting services

Full-Stack Development
End-to-end web application development using modern technologies like Next.js, React, Node.js, and TypeScript.
  • Custom web application development
  • RESTful & GraphQL API design
  • Database architecture & optimization
  • Cloud deployment (AWS, Vercel)
  • Performance optimization
  • Code review & refactoring
Starting at
Custom quote
Delivery4-12 weeks
AI Integration & Development
Integrate cutting-edge AI capabilities into your applications using LangChain, OpenAI, and custom AI solutions.
  • LangChain integration
  • OpenAI API implementation
  • RAG system development
  • Custom AI chatbots
  • Semantic search solutions
  • AI workflow automation
Starting at
Custom quote
Delivery2-8 weeks
E-Commerce Solutions
Build scalable e-commerce platforms with payment integration, inventory management, and multi-language support.
  • Shopify/WooCommerce integration
  • Payment gateway setup (Stripe)
  • Multi-language support
  • Product management systems
  • Order processing automation
  • Analytics & reporting
Starting at
Custom quote
Delivery6-16 weeks
Technical Consulting
Expert guidance on architecture decisions, technology stack selection, and best practices implementation.
  • Architecture review & design
  • Technology stack consultation
  • Code quality assessment
  • Performance audits
  • Security best practices
  • Team mentorship
Starting at
Hourly/Project-based
DeliveryFlexible
Legacy System Migration
Modernize your legacy applications with migration to modern frameworks and cloud infrastructure.
  • Legacy code assessment
  • Migration strategy planning
  • Framework modernization
  • Database migration
  • Cloud migration (AWS)
  • Zero-downtime deployment
Starting at
Custom quote
Delivery8-20 weeks
API Development & Integration
Design and implement robust APIs or integrate third-party services seamlessly into your applications.
  • RESTful API design
  • GraphQL implementation
  • Third-party API integration
  • API documentation
  • Webhook development
  • API security & authentication
Starting at
Custom quote
Delivery2-6 weeks

Ready to start your project?

Get In Touch

Get In Touch

Interested in working together or have a question? Feel free to reach out!

Contact Information

Email

ronnyangelo.freites@gmail.com

Location

San José, Costa Rica

Available for consulting and full-time opportunities

Connect