Senior Full Stack
Developer
Building high-performance web systems for 13+ years. Specialising in Laravel, Node.js, React, and cloud architecture across Indonesia, Japan, and Australia.
About
Turning complex problems
into clean, scalable systems
I'm Abdullah Ridwan, a Senior Full Stack Developer and IT Manager with over 13 years of hands-on experience building production systems for clients across Indonesia, Japan, and Australia.
My expertise spans full-stack web development, cloud infrastructure, AI integration, and real-time systems. I've led teams, architected microservices handling 50,000+ concurrent users, and integrated LLM-powered features into live products.
I care deeply about clean architecture, OWASP security standards, and shipping software that actually works under pressure.
Core Proficiency
Projects
Selected Work
37+ projects across SaaS, E-Commerce, Real Estate, Enterprise & VR
Pytixs: Event Ticketing Platform
2022 - PresentHigh-traffic event ticketing platform. Built microservices on AWS, AI-powered WhatsApp CS via OpenAI...
Global Shop Direct Australia
2023Online store for selling various products across Australia.
KLS Properties Bali
2024Real estate website for showcasing properties in Bali with booking and payment integration.
Glofinpos: Point of Sale SaaS
2022SaaS-based POS web application for managing transactions and inventory for SMB clients.
Tochi Real Estate (Japan)
2020Japanese real estate platform with custom Google Maps API for property listings.
Allied Recruitment .NET App
2019Recruitment application with automated candidate scraping, Solr search, and staff management.
VR App: Bajra Sandi Museum
2017VR application for Renon Bali museum using Unity 3D and Google Cardboard.
XR Media: Web VR/AR Promotion
2021Web application for media promotion using VR and AR technologies.
Showing 8 of 37+ projects. Get in touch for the full portfolio.
Experience
13 Years in the Field
Senior Analyst Developer
- Architect and deliver production-grade projects across .NET, Laravel, PHP, WordPress, Vue.js, Nuxt.js, and Next.js on Azure.
- Drive AI integration using OpenAI API, implementing LLM-powered features and automating business workflows.
- Own solution architecture end-to-end: system design, API contracts, database schema, and infrastructure topology.
- Enforce SOLID principles, clean architecture, and OWASP security standards across multi-developer codebases.
- Manage full DevOps lifecycle including CI/CD pipelines, Docker containerisation, and automated testing.
- Mentor junior developers through code reviews, pair programming, and knowledge-sharing sessions.
IT Manager
- Own full IT ownership of a high-traffic event ticketing platform spanning architecture, security, and feature development.
- Architected Node.js microservices with PM2 clustering, enabling 50,000+ concurrent users with zero downtime.
- Built AI-powered WhatsApp customer service using OpenAI API, significantly reducing manual CS workload.
- Developed Affiliate Marketing System with real-time referral tracking and commission payouts.
- Designed in-event cashless Wallet System for vendor transactions.
- Built Volunteer Attendance System and optimised QR scanner pipeline for thousands of simultaneous venue entries.
Full Stack Web Developer
- Delivered 15+ projects for Japanese clients including real estate, e-commerce, job matching, and VR/e-learning.
- Built JAMstack applications (Laravel API + Nuxt.js) with Stripe, PayPal, GMO payment gateways.
- Contributed to large multi-developer projects using Agile/Scrum methodology.
Programmer
- Built .NET recruitment app with Solr Search and MongoDB for automated candidate scraping and matching.
- Developed Laravel-based recruitment website on AWS within an agile team of 5.
Project Manager & Lead Developer
- Led end-to-end client project delivery across web, mobile, game, and VR/AR domains.
- Built VR application for Bajra Sandi Renon Museum using Unity 3D and Google Cardboard.
- Developed interactive exhibition app for Honda Astra Motor.
Web & Desktop Application Developer
- Developed ERP application for internal operations, increasing inventory efficiency by 30%.
- Built villa showcase website with booking system.
Tech Stack
Tools of the Trade
Backend
Frontend
AI & LLM
Cloud & DevOps
Security
Architecture
Databases
Realtime
Mobile & Game
Leadership
Contact
Let's Build Something
I'm open to senior developer roles, freelance projects, and technical consulting. Whether you need a full system built from scratch or an experienced hand to level up an existing codebase, let's talk.
Open for remote roles, freelance, and consulting. Response within 24 hours.