# Hao Zhe Ong

> C# .NET software developer based in George Town, Penang, Malaysia. Specialises in enterprise backend systems, API development, system integrations, and cross-platform mobile apps. Currently employed at SBT Software Consulting Sdn. Bhd. and open to new opportunities.

## About

Hao Zhe Ong is a software developer with over 4 years of professional experience building enterprise-grade ERP systems, RESTful APIs, and middleware integrations. He holds a Bachelor of Data Science (Honours) from Tunku Abdul Rahman University of Management and Technology (TAR UMT), Penang, graduating in 2024.

He is based in George Town, Penang, Malaysia, and communicates in English, Mandarin, and Malay.

## Current Role

- Company: SBT Software Consulting Sdn. Bhd., Penang, Malaysia
- Role: Software Developer
- Since: January 2022

## Technical Skills

- Languages: C#, TypeScript, JavaScript, SQL, Python
- Backend: .NET Core, REST APIs, SignalR, Hangfire, Serilog, Dapper, ADO.NET, RestSharp
- Frontend & Mobile: Angular, Ionic, Capacitor
- Databases: Microsoft SQL Server, SQLite, Redis
- Cloud: Microsoft Azure (App Service, SQL Database, Blob Storage, Redis Cache), Cloudflare, Vercel
- Integrations: LHDN e-Invoice (Malaysia), PayNet, Fiuu, AutoCount Accounting, SMS Gateway, Push Notifications
- Tools: Git, Postman, DevExpress, Apple App Store Connect, Google Play Console

## Selected Projects

### Enterprise ERP System (Web & Mobile)
Customised ERP platform supporting sales, purchasing, inventory, approval workflows, and financial integration. Built with Angular, Ionic, and .NET Core. Includes JWT/OAuth authentication, Redis caching, SignalR real-time updates, Hangfire background jobs, and PayNet/Fiuu payment gateway integrations.

### e-Invoice Intermediary — LHDN Malaysia
Standalone intermediary platform enabling ERP systems and third-party software houses to submit compliant e-Invoices to Malaysia's Inland Revenue Board (LHDN). Handles JSON-to-UBL transformation, asynchronous processing, retry logic, webhook callbacks, and end-to-end submission status tracking. Built independently after researching the official LHDN specification.

### AutoCount Accounting Integration
.NET Windows middleware application synchronising ERP financial documents (AR/AP invoices, credit notes, debit notes, receipts) with AutoCount accounting software. Designed for concurrent high-volume transactions.

### Halal Sabah Mobile Application
Technical lead on a halal certification app commissioned by MUIS Sabah. Designed and built the mobile app and merchant portal using Ionic and Capacitor. Successfully launched on Apple App Store and Google Play Store.

## Current Interests

Hao Zhe is actively building AI agents and automation workflows — both for personal productivity and as solutions for business clients. He is interested in opportunities involving backend engineering, system integration, AI automation, or SaaS product development.

## Certifications

- Bring AI to Work Workshop (2025) — Google
- AI Appreciate Badge — AI untuk Rakyat (2024) — MyDIGITAL and Intel

## Contact

- Website: https://haozhe.dev
- Email: me@haozhe.dev
- LinkedIn: https://www.linkedin.com/in/haozhe0622/
- GitHub: https://github.com/haozhe0622
- WhatsApp: +60 11-5633 9590
- Location: George Town, Penang, Malaysia (UTC+8)