Building things that matter.
I craft full-stack applications and experiment with machine learning — turning complex problems into clean, working software. Creator of seikouverse.com.
Not just writing code — shaping experiences that people actually want to use.
I am Leo Alfonso Tarigan, a developer who believes great software starts with genuine curiosity. A 2026 Information Technology graduate from the University of North Sumatra, I split my time between building full-stack web applications and exploring how machine learning can solve real problems.
Four years ago I wrote my first line of server code. Since then, I have shipped over fifty projects spanning e-commerce platforms, data dashboards, attendance systems, and AI-powered tools — including seikouverse.com. Every project taught me something the last one could not.
I gravitate toward the entire stack — database schema to pixel-perfect frontend — because details at every layer compound into software that feels right.
Technical
Craft
Languages
- Python
- JavaScript
- PHP
- Java
- SQL
Frameworks & Tools
- Laravel
- Flask
- Express.js
- Bootstrap
- React
Data & ML
- MongoDB
- MySQL
- Tableau
- TensorFlow
- Pandas
Practices
- REST API Design
- Git Version Control
- Agile Workflow
- Clean Architecture
Live
Products
Shipped, hosted, and running in production right now.
SeikouPay
Digital top-up platform for mobile credit, data packages, PLN tokens, e-wallets, and game vouchers. Instant processing with real-time transaction tracking and a flash-sale engine.
SeikouLink
A self-hosted link-in-bio platform with unlimited links, click analytics, custom themes, and personal subdomains. A free, no-subscription alternative to Linktree.
Mochi Booth
A browser-based analog photo booth. Capture sequences with your camera, choose strip templates and cinematic filters, then decorate and download — all processed on-device.
SajiPlan
A weekly meal planner that turns pinned recipes into a self-assembling shopping list. Plan seven days across breakfast, lunch, and dinner without the waste.
Selected
Works
Projects pulled from GitHub, most recent first.