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Jorge Castillo

@schorts

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Senior full-stack engineer and software architect building scalable, event-driven web and mobile platforms.

Mexico

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What I'm looking for

I’m looking to lead end-to-end architecture for scalable products—DDD/hexagonal and event-driven systems, strong CI/CD quality gates, and team mentoring—while tackling performance bottlenecks and reliable migrations in cloud-native environments.

I’m a Highly analytical Senior Full-Stack Engineer and Architect with 8+ years of hands-on experience designing, scaling, and leading the development of robust web and mobile applications. I’m expert in TypeScript ecosystems (Next.js, Node.js, React) and Ruby on Rails, and I build enterprise systems using Domain-Driven Design (DDD), Event-Driven Architecture (RabbitMQ), and Ports and Adapters (Hexagonal Architecture). I focus on end-to-end legacy migrations, open-source core frameworks, and eliminating high-stakes performance bottlenecks while mentoring teams to deliver technical excellence.

In recent work, I architected a cloud-native, multi-tenant Point of Sale and restaurant management platform using Ports & Adapters to isolate business logic from infrastructure, and I built a high-performance backend ecosystem with NestJS and Firestore. I’ve also engineered shared internal libraries across large LMS and Master projects, cutting code duplication by 40% and improving deployment velocity, and I’ve optimized React application performance (20% lower initial page load times and 35% fewer extraneous re-renders). Earlier, I led frontend architecture and engineered a Node.js WebSocket service handling 30,000 concurrent connections, then migrated systems into an Event-Driven Architecture with RabbitMQ—plus I’ve stabilized latency-heavy telehealth integrations, delivered multi-carrier e-commerce automation, and rescued legacy systems through complex data migrations and dependency fixes.

Experience

Work history, roles, and key accomplishments

Current

Senior Full-Stack Architect

Current

Simply POS

May 2025 - Present (1 year 1 month)

Architected and built a multi-tenant, cloud-native POS and restaurant management platform using Ports and Adapters to isolate business logic from infrastructure. Implemented Mercado Pago and hardware printing integrations, improving service speed by 30% and reducing kitchen coordination errors by 25% for early clients.

Nest WebSockets Firebase Firebase Firestore Hexagonal Architecture (Ports And Adapters)TypeScript NestJS DAO Criteria Pattern Mercado Pago Integration Firebase Cloud Messaging APIs Typescript Nodejs Typescript Javascript React

Software Developer

Rankmi

Nov 2025 - Mar 2026 (4 months)

- Engineered and published shared internal libraries utilized across the enterprise LMS and Master projects, cutting code duplication by 40%.
- Authored comprehensive technical design documents, architectural blueprints, and standards to unify technical alignment across multiple cross-functional engineering teams.

Ruby Ruby on Rails React TypeScript REST REST APIs Firestore Firebase Firestore New Relic PostgreSQL

Software Engineer

Goods & Services

Jul 2022 - Mar 2025 (2 years 8 months)

Optimized rendering performance for a massive, data-heavy enterprise React application; achieved a 20% reduction in initial page load times and cut extraneous component re-renders by 35% through memoization strategies and strict state decentralization.

Ruby Ruby on Rails TypeScript JavaScript React REST REST APIs Redis DynamoDB Lambda

Frontend Lead

Columbus

Jul 2021 - Jul 2022 (1 year)

Pioneered Frontend Architecture: Designed and implemented a robust enterprise frontend boilerplate leveraging the Ports and Adapters pattern, establishing clean dependency inversion and modularity across all client-facing interfaces.

React Vue CSS HTML HTML5 CSS3 WebSockets Socket.IO Python Flask Flask API REST REST APIs Material UI TypeScript

Software Engineer

michelada.io

Mar 2021 - Jul 2021 (4 months)

- Diagnostikare: Stabilized a high-stakes telehealth medical platform by identifying and fixing deep latency and connection issues with Amazon Chime live video streaming integrations.
- System Optimization: Conducted surgical refactoring loops for the "Control" architecture project, vastly enhancing code readability and routine runtime
performance metrics.

Ruby on Rails Ruby CSS CSS3 CSS in JS JavaScript Stimulus PostgreSQL SQL Bulma REST REST APIs

Freelance Software Consultant

Independent Consultant

Dec 2017 - Feb 2021 (3 years 2 months)

Architected and delivered a three-sided on-demand delivery ecosystem, building a Ruby on Rails REST API and deploying two React Native apps with Wompi for secure card processing. Developed a decoupled Python microservice for video compression and shipped high-conversion e-commerce storefronts using Next.js/Gatsby with Firebase backends and Stripe-based transactions.