John Carl Santos
I build it, ship it.
I build with AI inside — , the backends behind them, and the interfaces on top.
Right now I'm an AI Engineer at SOFI AI Tech Solutions, working on training data and , while finishing computer science at Philippine Christian University as a consistent Dean's Lister.
writing
view allShipping AI features without the demo trap
A working prototype is easy. A feature that survives real prompts, latency, and empty states is the actual product work.
aiproductNotes from building study tools with LLMs
Turning notes and PDFs into flashcards taught me more about async jobs and evaluation than about prompt wording.
aifull-stackWhat I look for when choosing a stack
I pick tools for the next six months of shipping, not for an imaginary perfect architecture.
engineeringfull-stack
projects
view allResumae
An AI-powered resume analyzer and builder that compares resumes with job postings and pinpoints missing keywords, weak bullets, and hard-to-scan layouts.
nextjstypescripttailwindcssclerkai integrationAlphaexplora
A fintech workflow platform for teams that run several legal entities, with live dashboards and automated controls.
nextjstypescripttailwindcssframer motionvercelStudyAI (autocards.app)
A study platform that turns notes and PDFs into flashcards and summaries.
nextjstypescriptopenai apitailwindcssframer motionTasksPay
A task marketplace on the Stellar network where finished tasks pay out instantly in stablecoins.
reactjavascriptsoroban sdkstellarrust
work
AI Engineer @ SOFI AI Tech Solutions
Curating training datasets, defining annotation standards, and building evaluation sets for LLM and machine learning systems.
Backend Engineer Intern @ FlyRank AI
Built a RAG pipeline with vector search and LLM APIs, added JWT authorization, and containerized a multi-service backend.
Software Engineering Intern @ Alphaexplora
Developed RESTful APIs, delivered backend features, and optimized application performance in an agile environment.
PyTorch Data Scientist @ Campus Student Program
Building and evaluating deep learning models for classification and regression with PyTorch.
BS Computer Science @ Philippine Christian University
Consistent Dean's Lister with a 1.15 GWA. Coursework across software engineering, algorithms, linear algebra, and AWS cloud computing.
toolkit
all toolsgithub
Contribution activity over the last year.
@JohnCarl-30credentials
view allcontact
Open to conversations about AI engineering, retrieval systems, and products that need to work after the demo. Best reached by email or LinkedIn.
sandbox
The page background is an 18px dot lattice. This panel runs Conway's Life on the same lattice — drag across it to seed cells and watch what survives.