John Elvin Endrenal / Software developer

Beyond the Universe.
Beyond the Known.

Building scalable products with code. Turning ideas into solutions that make an impact.

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Always exploring / Orbit in motion

01 / Selected work

From an idea
to something real.

Different problems. Same curiosity.

01 / Full Stack & AI2026

Notepad AI

An offline-first, Local AI powered study companion designed to make learning smarter, simpler, and more accessible through interactive concept maps and source-based conversations, quizzes, and more.

Next.jsTypeScriptTailwind CSSFastAPIOllama

GitHub ↗

AppBuildersPH Hackathon 2026

02 / Web2026

Learn with L

Learn with L is a personal tutoring website designed to provide accessible learning support in mathematics and programming. The platform presents available subjects, tutoring rates, session options, and contact information in a simple and organized interface.

Next.jsTypeScriptTailwind CSSResend

View site ↗

Personal Tutoring Website

03 / Full Stack & AI2026

BIN

AI-powered civic tech platform designed for automated waste sorting, collection tracking, and community sustainability with low-latency classification pipelines.

FastAPIPythonFlutterSupabaseComputer Vision

GitHub ↗

EXP21NCE YSES Hackfest — Finalist

04 / IoT & AI2026

S.M.A.R.T

IoT and software platform delivering real-time environmental telemetry, simulation, and predictive harvest analytics for modern precision agriculture.

IoT TelemetryUnitySupabaseC#Predictive Analytics

View site ↗

The Innovation Lab Hackathon — Finalist

05 / Web2025

ONE Proposal

Enterprise proposal and document lifecycle management platform built for institutional organization workflows and role-based permissions.

BlazorC#.NETMySQL

Watch demo ↗

STI College — Academic Project

01 / 05

02 / The person behind the code

A builder.
Always learning.

I enjoy building reliable software, exploring how AI can solve real-world problems, and understanding the research behind the technologies I use. My experience spans backend development, API design, AI systems, and research-driven projects.

I’m particularly interested in the intersection of software engineering and AI—building systems that are not only intelligent, but scalable, reliable, and grounded in strong engineering principles.

Long term, I aim to contribute to both industry and academe through engineering, research, and teaching.

John Elvin EndrenalSan Pablo City, Philippines

↗

languages & core

Python · TypeScript · JavaScript · C# · C · Java · SQL · HTML5/CSS3

ai & machine learning

RAG Pipelines · Hugging Face · Scikit-Learn · Kaggle · LLM Workflows · LangChain · Prompt Engineering

software & web

React · Next.js · Node.js · Express.js · FastAPI · Tailwind CSS · Blazor · REST APIs

databases & cloud

MySQL · Supabase · PostgreSQL · Firebase · MongoDB · Docker

developer tooling

Git · GitHub · Linux · VS Code · JetBrains · Figma · Postman

03 / The journey so far

Learning. Building.
Moving forward.

Career / Education

Career03 roles

01
APR — MAY 2025
Frontline Business Solutions, Inc.
Web Developer Intern
80-hour academic work immersion in web development and design.
02
JUL — SEP 2026
FlyRank AI
Backend AI Engineer
Backend AI Engineering intern building APIs and AI systems.
03
2026
Freelance & Tutoring Services
I tutor Math and Computer Science and build software as a freelance developer.

Education03 schools

01
2023 — 2025
STI College San Pablo
SHS, IT in Mobile App & Web Development
02
2025 — 2026
Pamantasan ng Lungsod ng San Pablo
BS Computer Engineering
Shifted to Computer Science.
03
2026 — PRESENT
Batangas State University
BS Computer Science

04 / Recognition

Small milestones.

Certifications & awards

Building APIs in PythonDataCamp+

Professional certification covering REST API architecture, request routing, validation, and database operations in Python.

AI Fluency for BuildersAnthropic+

Applied LLM engineering, prompt frameworks, structured outputs, and automated pipeline integration.

AI Essentials: Theory & PracticeUP Open University+

Theoretical foundations and applied practices in artificial intelligence, neural architectures, and ethical AI.

05 / Open a channel

Let’s talk.↗

A project, an opportunity, or a good conversation. My inbox is open.

jeendrenal.dev@gmail.com

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Good things start with a signal.

Beyond the Universe.Beyond the Known.

Notepad AI↗

Learn with L↗

BIN↗

S.M.A.R.T↗

ONE Proposal↗

A builder.Always learning.