Javier Tovar

I develop and maintain a fintech-focused investment platform, primarily working on backend services in Ruby on Rails with AWS integrations (S3, EC2). I migrated core backend components from Ruby to Go to improve performance, managed PostgreSQL running in Docker containers, and optimized SQL queries. I also contributed to frontend maintenance with Vue 3 + Vite and handled server administration, including DNS, domains, and SSL.

I led end-to-end development of applications, designing PostgreSQL schemas and delivering optimized queries. My backend work included building and implementing REST and SOAP/XML APIs with Django, as well as microservices integrated with Azure and GCP. I created production-ready Dockerfiles, managed deployments via GitHub and AWS CodeDeploy, performed data extraction and cleaning for analytics/ML tasks, implemented OpenCV-based computer vision in Node.js, and developed web applications using Next.js.

I contributed to a cloud-based retail advertising platform, performing Python-based web scraping and dataset cleaning for AI workflows. I developed APIs with Django, built frontends in React, worked with MySQL solutions, and automated tasks with basic Linux scripting.

As a junior developer, I built multi-platform web applications using Django and jQuery, structured MySQL databases, and created initial Linux automation scripts to support development and operations.