01 / Jhoniex Mendros Gamayon

Available for opportunities

Full-Stack & AI Developer

FULL-STACK
& AI DEVELOPER

I build secure web platforms, intelligent automation, and production-ready software using Next.js, React, Node.js, Python, C++, and SQL Server.

Explore projects Contact details View resume
  • 6documented portfolio projects
  • 3platform domains
  • 3verified production deployments

02 / Experience

Learning through real systems.

employment

IT Support Intern

WebAlive · Melbourne, Australia

Jul 2026 – Present

Supporting client websites and web applications through issue reproduction, testing, requirements review, and implementation documentation.

  • Migrated a legacy multi-page HTML/CSS website to Next.js static delivery and achieved Lighthouse scores of 100 across Performance, Accessibility, Best Practices, and SEO.
  • Audited booking and contact flows, business information, SEO, accessibility, and usability to create actionable development tasks.
  • Collaborated through Git-based workflows, code review, quality checks, Jira, Confluence, and handover documentation.

independent

Founder & Software Developer

Freelance / Personal Platforms · Remote

Mar 2020 – Present

Developing and operating SaaS and RAN Online systems across React, Node.js/Express, C++, and SQL Server.

  • Modernised a legacy Win32/DirectX 9 game codebase toward x64/DirectX 11, completing migration work across 12 game-linked dependencies and 7 of 8 major components.
  • Implemented packet validation, event logging, queue-backed processing, access controls, and network monitoring for incident diagnostics.
  • Built an FPS overlay and CPU frame profiler, then used a 1,000-mob stress test to identify effects-related bottlenecks.

education

Master of Information Technology

CQUniversity · Melbourne, Australia

Expected Nov 2026

Master of Information Technology candidate, majoring in Networks and Information Security with a minor in Artificial Intelligence.

  • Applied data preparation, machine learning, and model-evaluation practices in portfolio projects.
  • Completed the Google Cybersecurity Professional Certificate.

03 / Selected projects

Technical decisions, not just screenshots.

All projects
EntraBook landing page showing booking options for courts, classes, sessions, and rentals.

Multi-tenant booking SaaS

EntraBook

A deployed multi-tenant booking SaaS for court sessions, classes, and property rentals.

Problem

Organisations need tenant-scoped bookings, role-based administration, and subdomain routing without fragmenting identity or operations.

Evidence

Deployed at entrabook.com; production SaaS scope is documented in the resume.

Read project detail View site

Personal finance platform

Production

EntraSave

A personal-finance platform with transaction management, reporting dashboards, and secure OAuth-based sign-in.

Deployed at entrasave.com; no customer or financial outcome metrics are claimed.

  • React
  • Node.js
  • Express
  • SQL Server
  • OAuth
View project View site

Game administration platform

Production

BabyRAN Administration & AI Support Platform

A secure game administration, monitoring, email-verification, and server-management platform with controlled AI-assisted support features.

Deployed at babyraninternational.com; sensitive operational details are intentionally excluded.

  • React
  • Node.js
  • SQL Server
  • JWT
  • OpenAI API
View project View site

Game systems engineering

Archived

RAN Online x64 & Engine Work

Legacy game client and server work focused on x64/DirectX 11 modernisation, diagnostics, and runtime profiling.

Legacy technical work; sensitive implementation details and operational infrastructure are not published.

  • C++
  • x64
  • DirectX
  • Profiling
View project

Academic & practical ML work

Academic

Machine Learning Portfolio

A repository of deep-learning and machine-learning projects covering computer vision, time-series forecasting, and structured-data classification.

Source notebooks, datasets, experiment outputs, and project notes are available in the public repository.

  • Python
  • TensorFlow
  • Keras
  • scikit-learn
  • Pandas
View project

04 / Case studies

The why behind the build.

01 / EntraBook

Central OAuth for a multi-tenant SaaS

Designing a secure sign-in handoff between central identity and tenant subdomains.

02 / RAN Online x64 & Engine Work

Moving a legacy RAN Online stack toward x64

A focused view of compatibility, engine work, and profiling in a legacy game system.

05 / AI / machine learning

Machine learning as engineering work.

The Machine Learning Portfolio documents computer vision, time-series forecasting, and structured data classification work, with notebooks, datasets, experiment outputs, and evaluation notes kept in the public repository.

Computer vision
UTKFace age and gender prediction using Simple CNN and VGG16
Forecasting
LSTM experiments for BHP, CBA, and WES stock data
Classification
Olive-oil classification with PCA and Gaussian Mixture Model balancing
Explore machine learning portfolio

06 / Skills

A practical, full-stack toolkit.

Frontend

TypeScript · JavaScript · React · Next.js · Accessibility

Backend

Node.js · Express · REST APIs · Authentication · OAuth

AI / ML

Python · Data preparation · Model evaluation · Supervised learning · Clustering

Data & infrastructure

SQL Server · Linux · Nginx · PM2 · Cloudflare

Systems & delivery

C++ · DirectX · GitHub Actions · Testing · Performance profiling

07 / Contact

LET'S BUILD SOMETHING USEFUL.

Available for graduate, junior developer, internship, and selected freelance opportunities.

jhoniexgamayon12@gmail.com 0426 011 214 Resume PDF GitHub LinkedIn