Freelancer profile translated to English.

Description

Backend developer with over 6 years of production experience with PHP (Laravel, Symfony) and Ruby on Rails. I have worked on systems at the scale of millions of records, event-driven architectures with RabbitMQ, and REST APIs for mobile and enterprise applications.

Currently, I am building a RAG (Retrieval-Augmented Generation) system with Laravel, PostgreSQL + pgvector, and OpenAI: it allows asking natural language questions about documents and responds by citing sources. It's my bet on AI applied to the backend, an area in which I am actively specializing.

Available for projects of any duration: time banks, short projects, or long collaborations. 100% remote.

Industry field of expertise

Languages

Spanish
Native or bilingual
English
Conversational

Workplace preferences

Remote only

Primarily works remotely

Camillion - Remoto
Backend Developer (Ruby on Rails)
October 2024 - March 2026 (1 year and 5 months)
Identification and resolution of bottlenecks in critical endpoints via New Relic, eliminating N+1 queries with Mongoid eager loading and asynchronous processing with Sidekiq.
Maintenance and extension of a granular roles and permissions system with Pundit in a multi-tenant environment.
Automation of processes with cron jobs and asynchronous workers. Generation of PDF reports.
Ruby on Rails MongoDB RSpec Git Sidekiq
Coches.com - Remoto
Backend Developer (PHP)
September 2021 - June 2024 (2 years and 9 months)
Maintenance and evolution of the REST API for the iOS and Android mobile app, adding new endpoints and reporting directly to the VP of Technology.
Development of the backend in PHP for the rating engine, integrating it with the Data Science team's models.
Work on an event-driven microservices architecture with RabbitMQ, processing queues with retries and error handling at the scale of millions of records.
PHP Symfony MySQL REST APIs RabbitMQ
Grupo Talentum S.I.
Backend Developer (PHP)
January 2021 - September 2021 (8 months)
Development and maintenance of modules in Laravel for a proprietary points-based loyalty CRM, managing multi-client databases and personalized campaigns.
Implementation of new full-stack features with Laravel and VueJS according to each client's requirements.
Autonomous work with direct management of assigned projects.
Laravel PHP MySQL Vue.js CRM