My Work
Selected projects showcasing full-stack development, cloud architecture, and custom web solutions.
Healthcare Platform Migration
Context
Migrated a legacy PHP healthcare platform to Spring Boot with modern microservices architecture. Handled complex healthcare data processing and compliance requirements.
Challenge
Legacy PHP system with performance issues, security vulnerabilities, and difficulty maintaining. Needed zero-downtime migration while maintaining data integrity and compliance.
Solution & Impact
- • Zero-downtime migration from PHP to Spring Boot
- • 60% improvement in response times
- • Enhanced security with modern authentication
- • Improved maintainability and scalability
Tech Stack
CEDU Educational Platform
Context
Educational platform serving students and teachers across Guatemala. Built and maintained entirely as a solo developer, handling both backend and frontend development.
Challenge
Single developer responsible for entire platform including user management, course delivery, assessments, and reporting features.
Solution & Impact
- • Full-stack development from database to UI
- • User-friendly interface for students and teachers
- • Automated assessment and grading system
- • Real-time progress tracking and analytics
Tech Stack
WordPress Performance Optimization
Context
Custom WordPress site for a marketing agency with 50K+ monthly visitors. Site was experiencing 8+ second load times and high bounce rates.
Challenge
Performance optimization, custom WooCommerce checkout flow, and maintaining functionality while dramatically improving speed.
Solution & Impact
- • Reduced load time from 8s to 2s (75% improvement)
- • +40% conversion rate through optimized checkout flow
- • Custom plugin development for caching and image optimization
- • CDN implementation with Redis caching layer
Tech Stack
RutaPOS Android Application
Context
Android application for point-of-sale system used by retail businesses. Developed features for inventory management, sales tracking, and customer management.
Challenge
Creating an intuitive mobile interface for complex POS operations, offline functionality, and seamless integration with backend systems.
Solution & Impact
- • Native Android development with modern UI/UX
- • Offline-first architecture for reliability
- • Real-time inventory synchronization
- • Intuitive sales workflow for retail staff
Tech Stack
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