Hello World, I'm 👋

SebastianAugustino Lie

I build |

Informatics Engineering student at Universitas Padjadjaran who ships real products — from kasir systems for warung makan to AI-powered solar monitoring.

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Sebastian Augustino Lie
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Skills

Tools I build with

Projects

Things I've shipped

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Live

Lawang Sewu POS

Kasir system for a warung makan: PWA, role-based auth (owner/kasir), thermal receipt printing (58mm), WhatsApp reports via Fonnte, a Recharts dashboard, and PDF/Excel export.

  • React
  • Laravel
  • MySQL
  • Tailwind
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Deployed

AI-ORBIT Solar

Agentic ML system for solar power plant anomaly detection: five ML models (XGBoost, LSTM, Autoencoder, Isolation Forest, KMeans), a three-layer agent architecture, a Streamlit dashboard, Telegram alerts, and Docker.

  • Python
  • Docker
  • Railway
Source Code
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In Dev

PlayStation Rental

Booking system with an interactive visual floor plan, clickable seats, a step-based wizard, Midtrans payments, WhatsApp notifications, and a session countdown.

  • React
  • Laravel
  • Midtrans
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Demo

Orbit E-Commerce

Gadget store with catalog, cart, checkout, a promo system, search autocomplete, and dark mode.

  • Laravel
  • Blade
  • MySQL

Experience

Where I've contributed

2024 — Present

Freelance Fullstack Developer

Lawang Sewu Client

  • ▸Built an end-to-end POS system used daily by a real warung makan
  • ▸Shipped PWA, WhatsApp reporting, and an owner dashboard from scratch
  • ▸Handled full deployment: Vercel frontend + Hostinger Laravel backend

2024 — Present

HR Staff

Student Organization (BE), Universitas Padjadjaran

  • ▸Designed staff performance & welfare evaluation matrices
  • ▸Created structured interview frameworks per evaluation category

Organizations

Badan Eksekutif (BE)

HR Staff

2024 — Present

Student organization at Universitas Padjadjaran. Designed staff performance & welfare evaluation matrices and built structured interview frameworks for recruitment.

Achievements

Let's build something.

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