Gestor de Mercados · Pico Real
Integrated management system covering product production, distribution tracking, sales analytics, inventory, invoices, expenses, and supplier management. Works offline-first.
TypeScript React Electron SQL Node.js
Open to work · Freelance 
Hi, I'm
Raúl Lias
Fullstack Software Engineer
Specialized in JavaScript/TypeScript with 5+ years of experience building end-to-end web applications. Expert in high-performance UIs and scalable architecture design.
+5 years of experience · Alicante, Spain
About Me
I am a Fullstack Software Engineer graduated from the University of Computer Sciences of Cuba (UCI), specializing in JavaScript and TypeScript. I build end-to-end web applications for international companies and startups.
With over 5 years of experience, I've led projects as architect and lead developer — from high-performance UI design to scalable microservices and desktop applications. I work as an autonomous freelancer and bring both creative and technical precision to every project.
Education
B.Sc. Computer Engineering — Dec 2024
University of Computer Sciences of Cuba (UCI)
Honors: Teaching assistant in Programming.
5+
Years of experience
3
International companies
Technical Skills
Frontend
TypeScript JavaScript React Preact Astro HTML5 CSS3
Backend & Core
Node.js Go Express.js PostgreSQL SQL REST APIs Elasticsearch Microservices
DevOps & Tools
Docker GitHub Actions GitLab CI Git Vite esbuild Webpack Electron Linux
Practices
Clean Architecture SOLID Jest / Vitest Agile / Scrum Gitflow Monorepos
Experience
Lead Backend Developer
@ All In Biking Dec 2023 – Apr 2024 · Alicante, Spain
- Developed key microservices for bike and garage management systems.
- Implemented caching strategies that reduced server latency and response times by 60%.
- Led maintenance and decoupling of legacy systems within the company.
- Integrated Elasticsearch for advanced search and filtering capabilities.
Node.js TypeScript Elasticsearch Docker Microservices
Lead Architect & Fullstack Developer
@ Pico Real Jan 2021 – May 2025 · Havana, Cuba
- Designed e-commerce systems, internal sales managers, and dashboards with always-available, even offline requirements.
- Built desktop applications with Electron and internal tools for decentralized management of sales, inventory, invoices, expenses, and suppliers.
TypeScript React Electron SQL Node.js
Frontend Developer
@ Dixbase Aug 2023 – Mar 2024 · Barcelona, Spain
- Built a cryptocurrency web platform using cutting-edge technologies including Astro.
- Implemented responsive and accessible designs with high complexity in real-time interactivity.
Astro TypeScript React CSS WebSockets
Featured Projects
shadcn-preact
Preact port of the shadcn component library with minimal external dependencies and full TypeScript support. Drop-in alternative for Preact projects.
Preact TypeScript Tailwind CSS
Services
What I can build for you
Web Applications
Full-stack web apps from design to deployment. React, Astro, Node.js, and modern tooling.
High-Performance UIs
Optimized, accessible interfaces with real-time features, animations, and excellent Core Web Vitals.
Scalable Architecture
Microservices, REST APIs, and system design following Clean Architecture and SOLID principles.
Desktop Applications
Cross-platform desktop apps with Electron for internal tools, offline-first workflows, and management systems.
Legacy Modernization
Decoupling and refactoring of legacy codebases, migrations to modern stacks and better DX.
DevOps & CI/CD
Docker, GitHub Actions, GitLab CI setup — automated pipelines, containerization, and deployment.