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I am a results-driven Backend Developer with 5+ years of experience architecting scalable PHP and Laravel applications for high-traffic production environments. I design REST APIs, optimize MySQL performance, and automate workflows that save time and reduce manual work. I have integrated 5+ enterprise APIs (OpenAI GPT-4, Google, Meta, YouTube, SpinnerChief) serving thousands of daily users. I thrive in cross-functional teams, participate in code reviews, and mentor junior developers. I am proficient with SOLID principles, design patterns, and Agile methodologies, and I enjoy turning complex requirements into reliable, scalable software.…I am a results-driven Backend Developer with 5+ years of experience architecting scalable PHP and Laravel applications for high-traffic production environments. I design REST APIs, optimize MySQL performance, and automate workflows that save time and reduce manual work. I have integrated 5+ enterprise APIs (OpenAI GPT-4, Google, Meta, YouTube, SpinnerChief) serving thousands of daily users. I thrive in cross-functional teams, participate in code reviews, and mentor junior developers. I am proficient with SOLID principles, design patterns, and Agile methodologies, and I enjoy turning complex requirements into reliable, scalable software.

GERARDO JOSE MEDINA FERRER

Back-End Developer, Full Stack Developer, Web Developer, +5

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I am a results-driven Backend Developer with 5+ years of experience architecting scalable PHP and Laravel applications for high-traffic production environments. I design REST APIs, optimize MySQL performance, and automate workflows that save time and reduce manual work. I have integrated 5+ enterprise APIs (OpenAI GPT-4, Google, Meta, YouTube, SpinnerChief) serving thousands of daily users. I thrive in cross-functional teams, participate in code reviews, and mentor junior developers. I am proficient with SOLID principles, design patterns, and Agile methodologies, and I enjoy turning complex requirements into reliable, scalable software.…I am a results-driven Backend Developer with 5+ years of experience architecting scalable PHP and Laravel applications for high-traffic production environments. I design REST APIs, optimize MySQL performance, and automate workflows that save time and reduce manual work. I have integrated 5+ enterprise APIs (OpenAI GPT-4, Google, Meta, YouTube, SpinnerChief) serving thousands of daily users. I thrive in cross-functional teams, participate in code reviews, and mentor junior developers. I am proficient with SOLID principles, design patterns, and Agile methodologies, and I enjoy turning complex requirements into reliable, scalable software.

Available to hire

I am a results-driven Backend Developer with 5+ years of experience architecting scalable PHP and Laravel applications for high-traffic production environments. I design REST APIs, optimize MySQL performance, and automate workflows that save time and reduce manual work. I have integrated 5+ enterprise APIs (OpenAI GPT-4, Google, Meta, YouTube, SpinnerChief) serving thousands of daily users.

I thrive in cross-functional teams, participate in code reviews, and mentor junior developers. I am proficient with SOLID principles, design patterns, and Agile methodologies, and I enjoy turning complex requirements into reliable, scalable software.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

Spanish; Castilian

Fluent

English

Advanced

Work Experience

Software Engineer (Backend Systems) at Etruel Development

April 1, 2023 - April 1, 2026

Architected and deployed billing and transactional systems that automated 90% of manual workflows, significantly reducing operational overhead and human error. Implemented robust backend validation and system controls, decreasing processing errors by 40% and improving data integrity across all transactions. Managed cloud-hosted applications on AWS infrastructure, maintaining 99.9% uptime and achieving sub-second API response times through performance tuning.

Backend Developer at LARS Software Company

April 1, 2022 - April 1, 2023

Designed and developed a multi-tier student enrollment and grade management system serving 1,200+ active users with seamless scalability. Built comprehensive RBAC system ensuring data security, compliance, and granular permission management. Streamlined administrative processes through intelligent workflow automation, reducing manual workload by 35% and improving team productivity.

Junior Software Developer at Unidad Educativa "El Vigia"

January 1, 2021 - October 1, 2021

Led maintenance and feature development for WPeMatico and premium add-ons, reducing customer support tickets by 25% through proactive bug fixes. Engineered Facebook Graph API integrations enabling automatic content publishing and real-time analytics for 500+ active users. Developed AI-powered recommendation features that increased user engagement metrics by 30% and improved content discoverability.

Software Engineer — Backend Systems at Etruel Developments

April 1, 2023 - April 1, 2026

Led maintenance and feature development of WPeMatico and premium add-ons, engineered Facebook Graph API integrations for automatic content publishing and analytics, and shipped AI-powered content recommendations to boost user engagement. Contributed to open-source PHP and WordPress libraries with code reviews and unit tests.

Backend Developer (WordPress Plugins) at Etruel Developments

April 1, 2023 - April 1, 2026

Architected REST APIs and automation pipelines processing 10,000+ content items daily via webhooks and cron jobs, reducing manual processing by 15 hours/week. Engineered reusable PHP 8.x abstraction layers integrating 5+ enterprise APIs (OpenAI GPT-4, Google Cloud, Meta Graph, YouTube Data, SpinnerChief), cutting feature delivery by 40%. Optimized complex MySQL 8.0 queries and batch processing in high-traffic WordPress plugins, achieving 35% faster execution and reducing server CPU load by 25% for 5,000+ users.

Software Developer at Unidad Educativa “El Vigia”

January 1, 2021 - October 1, 2021

Developed full-stack internal management system with PHP 7.4, MySQL 5.7, JavaScript, and Bootstrap 5, serving 80+ teachers and administrators across 3 departments. Designed and normalized 12 relational database tables, built backend with JSON processing and jQuery AJAX for real-time updates in a 4-developer Agile team using GitLab CI/CD. Delivered project 2 weeks ahead of deadline by coordinating feature branches and resolving conflicts; presented demos to stakeholders to gather requirements.