Hi! I’m Al jon Santiago, a Full Stack Developer focused on building AI powered web applications, SaaS platforms, and workflow automation systems.
I build modern, responsive, and scalable applications using React, Next.js, TypeScript, Node.js, Supabase, and PostgreSQL while integrating language models and AI features into real user experiences.
My recent work includes intelligent web platforms, automation workflows, RAG systems, AI evaluation tools, and interactive full stack applications.
What I Build
• AI powered web applications and SaaS platforms
• Workflow automation and AI assisted business tools
• Full stack dashboards, user systems, and internal tools
• Interactive interfaces with reliable backend architecture
• End to end products from design to deployment
Featured Projects
• AI Resume Builder
Smart resume creation with AI suggestions and export features
• Private Knowledge Base AI (Advanced RAG)
Knowledge retrieval platform with document processing and AI assisted answers
• ED3C Eternal Design
Interactive 3D customization platform with order management and SaaS style administration
• AI Systems Evaluation Playground
Platform for comparing and evaluating multiple AI model outputs
Core Skills
Frontend: React, Next.js, TypeScript, Tailwind CSS
Backend: Node.js, Express.js, REST APIs, Supabase, Firebase, PostgreSQL
AI Engineering: LLM Integration, Prompt Engineering, RAG, Workflow Automation, AI Evaluation
Tools: Claude, OpenAI, Mistral AI, Hugging Face, Cursor, GitHub, Docker, Vercel, Render, n8n
I enjoy turning ideas into production ready applications that solve real problems and create meaningful user experiences.
