Programming Languages & Frameworks

  • Ruby on Rails: 15+ years, full-stack development, HOTWIRE (Turbo, StimulusJS)
  • Java: Spring Boot, Jakarta EE, enterprise applications, microservices
  • Elixir: Functional programming, OTP, concurrent systems
  • JavaScript: React, StimulusJS, BackboneJS, modern ES6+
  • SQL: PostgreSQL, MySQL, Oracle — complex queries and optimization

Backend & Architecture

  • RESTful APIs: Design, implementation, and documentation
  • Microservices: Architecture design and implementation
  • System Integration: Hardware integration, third-party APIs
  • Legacy System Modernization: Performance optimization and refactoring

Data Engineering & Analytics

  • ETL Processes: Apache Hop, custom data pipelines
  • Reporting: Jasper Reports, Google Looker Studio
  • Data Analysis: R, Excel, LibreOffice
  • Database Optimization: Performance tuning, query optimization

DevOps & Cloud

  • Cloud Platforms: AWS (S3, EC2, IAM, RDS), Elastic Beanstalk
  • Containerization: Docker, container orchestration
  • CI/CD: GitHub Actions, Git, automated testing and deployment

Specialized Domains

  • Government Systems: Immigration control, transparency platforms
  • Healthcare: HL7 integrations, hospital management systems
  • ERP Systems: Custom development, Openbravo customization
  • SaaS Platforms: Scalable multi-tenant applications
  • Hardware Integration: Specialized devices, biometric systems

Project Management & Leadership

  • Agile Methodologies: Scrum, Kanban, sprint planning
  • Team Leadership: Mentoring, code reviews, architectural decisions
  • Tools: Jira, Confluence, Slack SDK development
  • Remote Work: 8+ years of remote collaboration experience

Key Achievements

  • 20% productivity improvement achieved at Admios through automation tools
  • SIMIEC System: Architected national immigration control system serving millions of users
  • LOTAIP Platform: Built government transparency system ensuring regulatory compliance
  • SITRAN ERP: Developed complete custom ERP solution for tourism industry
  • alas-HIS Integration: Implemented critical HL7 healthcare integrations
  • Academic Impact: Taught programming and supervised institutional projects