John Rommel Octaviano

johnrommel.octaviano@gmail.com

@ctvnjhnrmmlp

Mid-Level Software Engineer, Computer Science.

Lifeline Angel

Helping users during medical emergencies powered by machine learning.

Designed and developed an AI-powered chatbot system for personalized first aid recommendations based on user inputs. The system integrates two specialized models: Astra, which utilizes machine learning and natural language processing to generate accurate text-based first aid guidance, and Vesper, an image-based wound classification model that enhances first aid assistance through visual analysis.


Project Selyo (EVM Support)

Transforming user participation into real value with tokenized incentives.

Platform for tokenizing social interactions. We help organizers gather real-time data from their participants to help them run raffles, giveaways, and to understand attendees behavior to bring the best experience for your IRL events.


ethdexer

Fast, structured on-chain data access.

Built an Ethereum blockchain indexer that processes and structures on-chain data into searchable and accessible formats, enabling efficient retrieval of transactions, smart contract events, and account activity for developers and data-driven applications.


T.E.A.M Multi-Chain Terminal

A command-line inspired interface for tracking wallets, balances, and transactions across multiple blockchains in real time.

Developed a terminal-style multi-chain explorer that consolidates wallet addresses, balances, and transaction data across networks like Ethereum, Arbitrum, Avalanche, Base, and BNB, providing developers and traders with a fast, minimal, and intuitive way to interact with blockchain data in real time.


Terminal Explorer Asset Monitor

A real-time terminal-inspired dashboard for tracking multi-chain wallet balances across Ethereum, BNB, Polygon, and more.

Built a minimalist terminal-style asset monitor that consolidates wallet balances and activity across multiple blockchains including Ethereum, BNB, Polygon, Arbitrum, Avalanche, Base, Klaytn, and OKTC, providing developers and traders with a fast, lightweight, and intuitive way to track on-chain assets in real time.


T.E.A.M ETF Bubbles

An interactive visualization platform for real-time ETF market performance.

Developed a dynamic bubble-based dashboard that visualizes ETF market movements in real time, where bubble size and color reflect percentage gains or losses, enabling traders and investors to quickly grasp market sentiment and trends through an engaging, interactive interface.


T.E.A.M Auction

A blockchain-powered auction platform where users can create, bid, and settle auctions securely on-chain.

Developed a decentralized auction application powered by Ethereum smart contracts, enabling users to create auctions with prize pools, place real-time competitive bids, and settle outcomes transparently without intermediaries. The system ensures security and fairness by automatically handling bid refunds, winner payouts, and auction settlement on-chain, while allowing participants to withdraw funds directly from their wallet. This project demonstrates the use of Solidity, event-driven architecture, and Web3 wallet integration to create a fully trustless, transparent, and user-owned bidding experience.


T.E.A.M Wallet

A Telegram-based multichain crypto wallet enabling secure, real-time digital asset management and portfolio tracking.

Contributed to the development of a Telegram bot-based multichain crypto wallet designed for secure and convenient management of digital assets. The system integrates blockchain APIs and smart contract interactions to support multiple networks, providing users with real-time transactions, portfolio tracking, and accessible crypto asset management directly within Telegram.


T.E.A.M TikToken

A decentralized TikTok-inspired social platform where users log in with their crypto wallets and share short-form video content.

Created a blockchain-powered short-form video sharing platform inspired by TikTok, where users authenticate with their wallet addresses instead of traditional logins. The platform integrates Web3 features such as tokenized engagement, creator rewards, and decentralized identity, giving users full ownership of their content and data while fostering an interactive, creator-first community.


T.E.A.M TopUpShop

Buying and gifting digital game power-ups like Fortnite V-Bucks with secure, fast, and borderless transactions.

Developed a blockchain-based digital store that enables players to securely purchase and gift in-game power-ups such as Fortnite V-Bucks, skins, and other digital assets using crypto payments. Inspired by platforms like MyGiftCardSupply, the store leverages blockchain technology to ensure transparent, borderless, and fraud-resistant transactions, while providing gamers with a seamless and user-friendly experience to enhance their digital gameplay.


Solana Token Scanner

Real-time token tracking and insights.

Developed a real-time Solana token scanner that efficiently tracks and analyzes token metadata, supply, holders, and on-chain activity, empowering developers, traders, and blockchain enthusiasts with fast and scalable insights.


tictictic

Play against another player or challenge the computer with an AI opponent powered by the Minimax algorithm.

Play head-to-head against another player in real time or test your skills against a challenging AI opponent powered by the Minimax algorithm, which simulates optimal decision-making by evaluating possible future moves and counter-moves. The AI is designed to adapt dynamically, ensuring competitive gameplay that pushes you to think strategically, anticipate outcomes, and refine your decision-making with every match.


dispatcher

A full-featured web application that delivers real-time updates on the latest news, weather conditions, and COVID-19 statistics.

A full-featured web application that delivers real-time updates on the latest news, weather conditions, and COVID-19 statistics. Built for users who want a one-stop solution to stay informed, Dispatcher provides a clean and interactive experience across devices. It solves the problem of fragmented sources for vital information by aggregating trusted data feeds and presenting them in an intuitive UI.


screener

Built for binge-watchers and cinephiles who want a modern, fast, and intuitive experience.

A responsive and modern web application that allows users to effortlessly browse, search, and explore information about their favorite movies and TV series. It offers a beautiful and smooth user interface built using TypeScript, React, Next.js, Mantine, and React Query. It solves the common problem of cluttered and slow entertainment platforms.


psswrdgnrtr

A sleek and customizable password generation app built with modern tech to prioritize security, usability, and performance.

A modern password-generating application built for individuals and developers who prioritize digital security. It enables users to generate secure, unique, and customizable passwords with options for length, casing, numbers, special characters, and even pronounceability — striking a perfect balance between strength and memorability.


dencryptor

A privacy-first utility built for anyone who values simplicity, security, and accessibility.

A web-based application that allows users to encrypt and decrypt sensitive information using a basic substitution cipher. It solves the need for a lightweight, accessible, and privacy-respecting tool for text-based encryption. Whether you’re a developer, student, or privacy-conscious individual, Dencryptor provides a streamlined experience with zero data storage.


AWS Cloud Club - University of Cabuyao Official Website

An amazon-themed landing website.

Developed and maintained the official website of the AWS Cloud Club at the University of Cabuyao, showcasing events, programs, resources, and community initiatives to support cloud learning and student engagement.


Python Pathfinding Algorithms Visualizer

A practical knowledge on search strategies, heuristic design, data structures and algorithm optimization for pathfinding applications.

Implemented classic pathfinding algorithms — Greedy Best-First Search and A* Search — in Python to efficiently navigate grids and find optimal paths. The project applies Manhattan distance as a heuristic to evaluate node proximity, supporting movement restricted to orthogonal directions.