Gangsar Aryo
I build websites & web apps that grow your business
Fullstack web developer based in Indonesia. From landing pages to e-commerce and custom management systems — built to be fast, reliable, and ready to scale.
Need a website or a system to run your business? I help businesses, startups, and professionals turn their ideas into fast, reliable web products that actually get used. Whether you want to attract more customers, sell online, or replace messy spreadsheets with a proper system, I handle it end to end — from design and development to launch.
I'm a fullstack web developer with years of experience building production websites and applications for real companies, using modern technologies like React, Next.js, and TypeScript. You get clean, maintainable code, clear communication, and a partner who cares about the result — not just the code.
What I Can Build for You
From a simple landing page to a full management system — pick what your business needs, or tell me your idea and I'll build it.
Landing Page & Company Profile
Make a strong first impression online.
A fast, modern, mobile-friendly website that introduces your business and turns visitors into customers. Perfect for promoting a product, service, or brand with clear calls-to-action that drive enquiries.
Responsive design
SEO-friendly
Contact / WhatsApp CTA
Fast loading
Web Apps & Custom Dashboards
Run your business from one place.
Tailor-made web applications with secure login, admin panels, and data management built around the way you actually work. From customer-facing platforms to internal tools, I build systems that scale with your business.
User authentication
Admin dashboard
Data management
Reports & analytics
E-Commerce & Online Store
Sell online, get paid automatically.
Online stores with product catalogs, shopping carts, and integrated payment gateways such as Midtrans so customers can purchase directly. Includes order tracking and an admin panel to manage products and transactions.
Payment gateway (Midtrans)
Product & order management
Cart & checkout
Sales tracking
Management Systems
Digitize and streamline your operations.
Internal systems built around your operations to replace spreadsheets and manual work — including HRIS (attendance, payroll, leave), POS / cashier, inventory & stock, CRM, learning management (LMS), and booking / reservation systems.
HRIS
POS / Cashier
Inventory
CRM
LMS
Booking / Reservation
Maintenance & Revamp
Keep your site fast, secure & up to date.
Already have a website? I can modernize an outdated design, fix bugs, improve performance, or take over ongoing maintenance so your site stays secure, fast, and reliable as your business grows.
Redesign / revamp
Performance tuning
Bug fixes
Ongoing support
Selected Work
Real websites and systems I've built and shipped for companies — from marketing sites to dashboards, e-commerce, and internal tools.
A marketing website for Purwadhika that showcases programs and information using a modern full-stack tech stack.
Node.js
Typescript
Next.js
MUI
Express.js
Sequelize
MySQL
CMS
Purwadhika Student Dashboard
Purwadhika Student Dashboard is a centralized platform for students to access their programs, manage transactions, connect with alumni, and explore job opportunities.
Node.js
Typescript
React.js
MUI
Express.js
Sequelize
MySQL
Purwadhika Admin Dashboard
Purwadhika Admin Dashboard is a management platform for handling programs, users, students, alumni, transactions, grades, and data reporting.
Node.js
Typescript
React.js
MUI
Express.js
Sequelize
MySQL
Purwadhika College is an informational landing page showcasing Purwadhika’s collaborative programs with various international universities.
Node.js
Typescript
Next.js
MUI
Purwadhika School of Design is a landing page that introduces programs in creative fields such as UI/UX, 3D Animation, and other design-related studies.
Node.js
Typescript
Next.js
MUI
Kirei Wash Landing Page is a product-focused website that provides information about Kirei Wash and its offerings.
Node.js
Typescript
Next.js
Mantine
Kirei Wash Admin Dashboard
Kirei Wash Admin Dashboard is a management platform for overseeing services, transactions, users, employees, and business operations.
Node.js
Typescript
Next.js
Mantine
Kirei Wash Employee Dashboard
Kirei Wash Employee Dashboard is a platform for employees to manage tasks, track services, monitor attendance, and handle daily responsibilities.
Node.js
Typescript
Next.js
Mantine
English Talker United Landing Page is a website showcasing English learning programs with a contact feature for users to connect with the admin.
Node.js
Typescript
Next.js
MUI
English Talker United Admin Dashboard (Ongoing Project)
English Talker United Admin Dashboard is a management platform for handling users, courses, schedules, student progress, and inquiries.
Node.js
Typescript
Next.js
MUI
Experience
Companies and teams I've worked with, building and shipping production software.
2022 — PRESENT
Fullstack Web Developer @ Purwadhika
I've led development on 6+ web platforms at Purwadhika — including the landing page, admin dashboard, student dashboard, Purwadhika Career Network, and Purwadhika College — improving the experience for 500+ users. Built with Node.js, JavaScript, TypeScript, and Express.js/Sequelize on the backend, and React.js/Next.js on the frontend, with MySQL as the database.
Node.js
Javascript
Typescript
React.js
Next.js
Express.js
Sequelize
MySQL
AUG 2025 — PRESENT
Fullstack Web Developer @ Tariot Agency (Singapore, Remote)
I help build full-stack web and mobile applications for automotive service appointment systems serving Toyota and Lexus dealerships — including the NBT and JMP admin dashboards, the NBT mobile booking app, and their supporting APIs. I also built a product landing page for Roachout, a pest-control brand based in Brunei.
Node.js
Typescript
Next.js
React Native
Express.js
MAR — SEP 2025
Fullstack Web Development Lecturer @ Purwadhika
I taught the Full-Stack Web Development program end to end — from JavaScript fundamentals, HTML, and CSS through to React.js, Next.js, Tailwind CSS, Express.js, and Prisma, with TypeScript as the primary language — guiding students to build a fully functional full-stack application as their final project.
Javascript
Typescript
React.js
Next.js
Tailwind
Express.js
Prisma
APRIL — JUNE 2024
Fullstack Web Developer (Part-time) @ Kirei Wash
I contributed to the Kirei Wash application, working on the landing page, employee app, admin dashboard, and API using TypeScript, Next.js, NestJS, and Prisma, and added unit tests with Jest for reliability.
Typescript
Next.js
NestJS
Prisma
Jest
APRIL — JUNE 2023
Fullstack Web Development Mentor @ Purwadhika
I mentored 6 project teams across 2 batches, guiding students in building production-ready applications. My role included providing code reviews, debugging support, and sharing best practices in JavaScript and React.
Node.js
Javascript
Typescript
React.js
Next.js
Tailwind
Express.js
Prisma
PostgreSQL
Let's Build Something
Have a project in mind or just want a quote? Tell me what you need and I'll get back to you with the best way to make it happen. The first conversation is always free.
gangsararyo@gmail.com