Rafael Grefal

Rafael Grefal

Manila, Philippines

Rafael Grefal

Full Stack Developer
Category : Web development
I am a Full Stack Developer and Software Engineer with a comprehensive background in designing, developing, and deploying high-performance web applications and automation solutions. With a core expertise in PHP, ASP.NET Core, and Power Apps, I specialize in building secure RESTful APIs and scalable architectures that bridge the gap between complex backend logic and intuitive user experiences.
Technical Expertise
• Full-Stack Web Development: Expert in PHP, C# (.NET), and JavaScript/TypeScript. I have an extensive track record of delivering custom web solutions, from freelance PHP scripts to enterprise-grade applications using Angular, Bootstrap, and NestJS.
• AI & Intelligent Automation: Specialized in integrating AI-driven features such as Optical Character Recognition (OCR) and AI Builder to automate data entry and enhance decision-making. I focus on building AI agents and Copilots that streamline business workflows.
• Power Platform & Low-Code: Advanced proficiency in the Microsoft Power Platform, including Power Apps, Power Automate, and Dataverse, allowing for rapid deployment of integrated business tools.
• Systems & Infrastructure: Solid experience managing databases like MySQL, Redis, and Memcached, as well as utilizing DevOps tools, Cloud Computing, and server management through NGINX, Apache, and cPanel.
I am a versatile developer who thrives on solving technical challenges through a combination of traditional coding, AI innovation, and workflow automation.

Working hours

  • Monday:08h00 To 18h00
  • Tuesday:08h00 To 18h00
  • Wednesday:08h00 To 18h00
  • Thursday:08h00 To 18h00
  • Friday:08h00 To 18h00
  • Saturday:Not available
  • Sunday:Not available
• Full-Stack Development: Developed a comprehensive ASP.NET Core application utilizing MVC and RESTful APIs for core business functionality and data exchange.
• Power Platform Expertise: Designed and enhanced Canvas and Model-Driven Power Apps and implemented Power Automate workflows to streamline processes and integrate data between systems.
• AI & Automation: Engineered a critical system enhancement by integrating AI-powered Optical Character Recognition (OCR) into the BIR2316 application, significantly reducing manual data entry and improving accuracy.
• Prototyping: Built AI Builder Proof of Concepts (POCs) for automated data processing and insight generation, supporting AI adoption for business decision-making.
Designed, developed, and delivered custom PHP scripts and web solutions, ensuring all projects met specific client requirements and performance standards.
• Utilized NestJS and Angular to develop and maintain secure web application services, including creating and documenting RESTful APIs for data retrieval.
• Conducted comprehensive unit testing and debugging, and collaborated with the design team to enhance the overall user experience.
  • Web Development Masterclass 07/02/2023
  • Cloud Basics: Development and Basic Concepts 21/03/2022
  • 🇬🇧 English
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