Karl Cyrus Celda

I'm building practical full-stack applications, including PaperBrain, a Retrieval-Augmented Generation document Q&A pipeline that lets users securely upload documents and query them in natural language.

For PaperBrain, I engineered a Next.js processing pipeline for text parsing, chunking, and 768-dimensional vector embeddings, then orchestrated streaming responses through the Google Gemini REST API grounded exclusively in uploaded context. I also architected NAvSU, an augmented reality campus navigation system using Unity, AR Foundation, and Dijkstra's Algorithm for real-time spatial guidance.

During my software developer internship at Build2Last Construction Corporation, I fixed backend logic, implemented front-end components, and integrated Supabase in a client-based project. I also debugged and finalized a React-based QR attendance portal, building secure database operations, duplicate check-in prevention, and dynamic schedule reporting.

Alongside development, I've managed student assistants, cleaned and normalized student datasets in Excel, and presented university guidelines to incoming freshmen. I bring hands-on experience with Java, Python, C#, TypeScript, SQL, React, Next.js, Supabase, Git/GitHub, machine learning, and RAG architecture.