about me
John Carl
Santos.
Aspiring AI Engineer & Full Stack Developer based in the Philippines. I build RAG systems, multi-agent pipelines, and full-stack products — mostly for people who don't have enough tools yet.
CJ · dyeyc · @johncarlsantos
BS Computer Science — AI Specialization
Philippine Christian University · Bulacan · Year 3
Software Engineering Intern
Express.js · actively targeting AI Engineer roles
RAG · Multi-agent · Full Stack AI
PraktikAI — AI OJT journal for Filipino CS/IT students
Open to remote opportunities globally
Projects Shipped
Years Building
Cloud Certifications
Technologies Used
Why I build what I build
I started coding because I wanted to fix problems I saw around me. Filipino CS/IT students spending hours formatting OJT journals by hand. Students cramming with no good digital study tools. That's where PraktikAI and StudyAI came from — not tutorials, not trends.
There's something that drives me about building for people who don't have enough resources. The Philippines has brilliant developers, but the tooling built for us, by us, is still limited. I want to change that — one shipped product at a time.
How I work
I learn by shipping. Not by finishing courses or collecting certificates — I mean actually deploying things, watching them break in production, and fixing them. My StudyAI benchmark work, the RAG retrieval improvements, the SSE streaming optimizations — none of that happened in a classroom.
I care deeply about the full picture: the AI layer, the backend architecture, the DevOps, and the UI. I want to understand why a system behaves the way it does, not just make it work.
How I got here
2024 — Now
AI Engineer path · PraktikAI, LeadPilot, StudyAI
Vertex AI, Gemini 2.5 Pro, LangGraph multi-agent systems, pgvector RAG pipelines, GCP Cloud Run deployments.
2024
Oracle GenAI & AWS Certified
Validated cloud and AI knowledge formally alongside hands-on project work.
2024
Software Engineering Internship
Express.js backend development in a production environment.
2023
First full-stack AI projects
StudyAI (originally Pinecone, migrated to pgvector), ApplyAI, early PraktikAI. LangChain, LlamaIndex, FastAPI foundations.
2022
BS CS starts · Philippine Christian University
PHP/Laravel, assembly (8086), Android Java, Flask. The beginning of building things that actually run.
Outside the terminal
I play Mobile Legends and COD when I need to turn my brain off. Billiards and basketball when I need to move. I go to the gym and run — both keep me sharp. I also write music; I have an original song called Superposition.