Freelance Fullstack DeveloperBuilding Intelligent Web & AI Solutions
I'm Jerwin Gubat, a freelance fullstack developer and programmer based in Cavite, Philippines — Founder of OptiByte Software Solutions and Computer Science Instructor at Cavite State University. I build scalable fullstack web applications, AI & machine learning systems, computer vision software, and modern interactive user experiences.
Featured & Key Projects
A showcase of fullstack applications, computer vision systems, and AI utilities.
Face Recognition Using MTCNN & Inception ResNet V1
Real-time face recognition & detection system leveraging MTCNN for face alignment and InceptionResNetV1 for deep face embeddings from live camera feeds.
SweeTrack Food & Calorie Tracker App
Food recognition Android app that identifies food items, estimates caloric & sugar intake, and guides dietary choices based on health conditions.
NutriScan
NutriScan is a web app that lets users scan food barcodes and quickly view nutritional information, making it easier to understand products and make healthier choices.
BudgetFlow
BudgetFlow is a web app that helps users manage their finances by tracking expenses, setting budgets, and providing insights into spending habits.
CVSU Syllabus Draft Generator
AI-assisted web application for educators to quickly craft structured course syllabi and detailed learning roadmaps based on topic parameters.
Research Title Generator
AI-driven utility assisting CS & IT students in generating creative, domain-specific project titles tailored to AI, Mobile, and Web stacks.
JARVIS Clone
A voice-controlled AI assistant inspired by Tony Stark's JARVIS, built with Python. Features a sleek Iron Man-style UI with an arc reactor animation, continuous voice recognition, and AI-powered responses.
All Creative Projects
Modular Python implementations, mobile tools, and client web applications.
Face Recognition MTCNN
Real-time face detection and embedding comparison using PyTorch and OpenCV.
CVSU Syllabus Generator
Automated curriculum and roadmap generator for university instructors.
BudgetFlow
BudgetFlow is a web app that helps users manage their finances by tracking expenses, setting budgets, and providing insights into spending habits.
Research Title Generator
AI tool for CS/IT students to generate capstone and thesis project ideas.
SweeTrack App
Mobile app estimating calorie and sugar content from food photos.
FoodBud
Health-focused food prohibition detector based on medical profiles.
NutriScan
NutriScan is a web app that lets users scan food barcodes and quickly view nutritional information, making it easier to understand products and make healthier choices.
AngelCare Website
Modern website for senior assisted living featuring service details & contact flows.
Modular ML Algorithms
Clean Python implementations of core machine learning algorithms from scratch.
JARVIS Clone
A voice-controlled AI assistant inspired by Tony Stark's JARVIS, built with Python. Features a sleek Iron Man-style UI with an arc reactor animation, continuous voice recognition, and AI-powered responses.
Online Exam Proctor
Real-time database test environment with active tab monitoring for integrity.
Skills & Categorized Expertise
Machine Learning & AI
Computer vision, neural networks, and model deployment.
Web Development
Frontend frameworks, modern styling, and responsive UIs.
Backend & Databases
Server runtimes, APIs, and data storage solutions.
Mobile & Architecture
Cross-platform mobile apps & software design.
Core Services & Consulting
Web Application Development
Crafting modern, responsive web applications using React, Tailwind CSS, and Node.js with optimized performance and sleek glassmorphism UI/UX design.
Machine Learning & AI Integration
Developing and deploying custom ML models, computer vision systems (MTCNN / FaceNet), and AI-assisted automation tools.
Mobile App Development
Building native Android apps with Kotlin and cross-platform mobile solutions using Flutter integrated with Firebase backends.
CS Instruction & Technical Mentorship
Delivering high-quality undergraduate computer science education, curriculum design, research guidance, and technical workshops.
Professional Experience
Senior Executive - CWFM
Designing, developing, and maintaining websites and web-based applications to support business operations, improve user experience, and streamline internal workflows. Responsible for front-end development, functionality implementation, troubleshooting, and website optimization.
Computer Science Instructor
Instructing undergraduate CS courses, curriculum development, research advising, and guiding capstone software projects.
Architectural Engineering / AutoCAD Specialist
Prepared technical layouts, project documentation, and coordinated team deliverables for precision engineering projects.
Freelance Fullstack Developer
Delivered custom web and mobile applications, API integrations, database optimization, and client solutions.
Latest Articles & Insights
The Hidden Language: Why Mathematics is the Backbone of Computer Science
An exploration of how mathematical principles underpin algorithm design, cryptography, and artificial intelligence innovation.
Programming in the Age of AI: Reshaping the Coding Landscape
How intelligent developer tools and generative AI models amplify developer productivity while creating new paradigms.
Machine Learning and AI in the 21st Century: Innovation vs Inequality
Analyzing the societal, ethical, and economic implications of widespread artificial intelligence adoption.
Hire a Freelance Fullstack Developer in Cavite
Jerwin Gubat is a freelance fullstack developer and programmer based in Cavite, Philippines. He is also a Computer Science instructor at Cavite State University and builds fullstack web applications, AI and machine learning systems, and computer vision software.
Jerwin Gubat offers fullstack web application development with React and Node.js, AI and machine learning integration such as computer vision, mobile app development with Kotlin and Flutter, and software consulting.
Jerwin Gubat is based in Cavite, Philippines, and works with clients remotely worldwide.
You can contact Jerwin Gubat through the contact form on this portfolio, by email at jerwinfaderanga@gmail.com, or via LinkedIn at linkedin.com/in/jerwin-gubat-883944216.
Jerwin Gubat specializes in React.js, Node.js, JavaScript, Python, PyTorch, TensorFlow, OpenCV, MTCNN, Kotlin, Flutter, Firebase, MySQL, and MongoDB.