Rafael Grefal

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.