Ruben Chirino — Senior Software Engineer
Welcome to the portfolio of Ruben Chirino (Rubén Chirino), a Senior Software Engineer and Full Stack Developer with 6+ years of experience specializing in high-performance, scalable, and maintainable software solutions. Based in Madrid, Spain. Originally from Venezuela.
Experience
K-LAGAN — Senior Software Engineer (2024–Present)
Working on Angel/BonjourDocteur healthcare platform for AXA Partners. Building UI Component Systems, analytics infrastructure, and Infrastructure as Code on Azure. Technologies: TypeScript, React, Node.js, C#, .NET, Azure.
Mercado Libre — Senior Software Engineer (2022–2024)
Architecture team for MercadoPago web payment checkout. Developed A/B testing features increasing logged-in user payments by 5%. Led a complex architectural initiative improving Frontend-Backend communication efficiency by 80%. Technologies: TypeScript, React, Java, Go, Kotlin, Spring Boot, Kubernetes, Datadog.
Fresco Design — Full Stack Engineer (2020–2022)
Pioneered 3D web experiences using Three.js, Sketchfab, and ShapeDiver. Built a TypeScript library for 3D viewer, AR, and texture manipulation. Managed AWS infrastructure. Technologies: TypeScript, Next.js, React, Three.js, Python, PostgreSQL, AWS.
Skills
JavaScript, TypeScript, React, Next.js, Node.js, Java, Go, Kotlin, C#, Python, Three.js, AWS, Azure, Kubernetes, PostgreSQL, MongoDB, Redis, GraphQL, Spring Boot, .NET, Docker, Git.
Projects
A selection of projects by Ruben Chirino — the same ones featured in the interactive showcase of this portfolio.
- Angel · Bonjour Docteur (K-LAGAN — AXA Partners) — Telemedicine platform connecting patients with medical professionals. Built a documented UI component system, set up analytics (Google Analytics + Azure App Insights), integrated Prismic CMS, and authored Azure infrastructure as code.
- MercadoPago Checkout (Mercado Libre) — Web payment-checkout architecture. Shipped A/B-tested features that lifted logged-in payments by 5%, and led a front-end/back-end communication redesign that improved efficiency by 80%.
- EquiFit CustomLab (Fresco Design) — Real-time 3D product configurators for custom equestrian gear — customize boots and ear bonnets in the browser and preview them in AR.
- 3D Bike Configurator (Fresco Design) — Interactive 3D bike configurator with live material and component customization, built on a reusable Three.js viewer library.
- Fresco 3D Viewer (Fresco Design) — A TypeScript library on top of Three.js for 3D viewing, AR, and texture/geometry manipulation — embeddable across Shopify, Wix, Squarespace, and WordPress.
- Kolm (Client project)
- SEISA (Client project)
- CodeMaster (AI · Learning) — AI-powered coding-practice platform with on-demand problem generation, an integrated IDE, and a virtual assistant for personalized learning.
- AI Financial Coach (AI) — An AI assistant that reviews your finances and offers personalized budgeting and saving guidance.
- This Portfolio (Interactive terminal) — The terminal you're using right now — real-time location & weather, a calendar-driven avatar, an AI chat that streams and speaks in my cloned voice, a 3D globe, and a playable synth.
- Beacon (Monitoring) — A status and uptime monitoring system that tracks services and surfaces incidents in real time.
- AI Trivia App (Android · AI) — Multi-language, multi-topic trivia with AI-generated questions for endless dynamic content.
- HarvestBot (IoT) — An automated irrigation system driven by a Telegram bot, with humidity and light sensors on Arduino.
- FashionForward (E-commerce) — A clothing e-commerce platform built from scratch with product search, filtering, cart, and Stripe payments.
Education
Systems Analyst — Escuela Da Vinci (GPA: 8.93/10). Information Systems Engineering — Universidad Tecnológica Nacional (UTN).