About Alvaro
Spanish
Native or bilingual
Catalan
Native or bilingual
English
Fluent
Experience
- Guia RepsolBackend DeveloperTRAVEL AND TOURISMOctober 2025 - Today (8 months)Barcelona, SpainÚnico ingeniero backend responsable de la arquitectura servidor de tres aplicaciones en producción: app móvil Repsol (Android e iOS), Repsol Profesionales y Repsol Empleados. Stack: Node.js y NestJS.— Diseño y mantenimiento de APIs REST consumidas por clientes móviles y web— Ownership completo del ciclo backend: arquitectura, implementación, despliegue y mantenimiento— Integración de sistemas de autenticación, bases de datos y servicios de terceros— Colaboración con equipos frontend/móvil para definir contratos de API y modelos de datos
- LernmiSoftware AI EngineerMarch 2024 - October 2025 (1 year and 7 months)Barcelona, SpainBuilt an AI-powered e-learning platform with intelligent training avatars, personalized learning, and real-time adaptive feedback.▸ Automated course creation with LangGraph: reduced content development from 15 days (manual) to under 5 minutes.▸ Implemented RAG with OpenAI Assistants in Python, significantly improving AI response accuracy and contextual relevance.▸ Integrated HeyGen, ElevenLabs and OpenAI Realtime API for voice-based conversational training bots — one client reported a 22% increase in sales performance after adoption.▸ Trained and deployed an Azure Speech model achieving higher accuracy in voice-to-text across diverse Spanish dialects.▸ Boosted delivery speed by 50% using AI-assisted coding practices (Windsurf AI, Cursor).▸ Full-stack (Ruby on Rails, JS, SCSS) and DevOps (Azure, GitLab, Docker, Kubernetes).
- • · HumansDidLead Engineer & Co-FounderOctober 2021 - December 2025 (4 years and 2 months)Barcelona, SpainSole technical decision-maker for a social impact platform built from scratch. Led the full technology strategy, architecture, and delivery end-to-end — from stack selection to production — while also acting as Product Owner and coordinating all external technology partners.▸ Designed and built the full platform: Next.js frontend, Strapi (Node.js) backend, PostgreSQL, hosted on AWS with Docker and GitLab CI/CD.▸ Implemented Ethereum smart contracts in Solidity for platform engagement features.▸ Integrated WordPress for the public website, plus Zapier, Facebook and other third-party services.▸ Defined all technical standards, architecture decisions and Agile/SCRUM delivery processes as sole engineer on the team.▸ Led communication and technical coordination with all external technology partners.
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Education
- Higher Technician in Software DevelopmentEscola Nuria Perpinyà19992001Higher Technician in Software Development
- High School Diploma (COU)Institut Montserrat1998High School Diploma (COU)