Jeff Tsai

.NET software architect designing enterprise systems and ERP. Author of the open-source Polhem framework, where one definition drives the UI, database schema and validation.

Taipei, Taiwan Joined on Oct 13, 2026 https://www.linkedin.com/in/jeff377

Education

Yuan Ze University

Work

.NET Software Architect at Soar Cloud System

Jeff Tsai

Oct 28

Day 4: The Purpose and Classification of Definition Files

#architecture #dotnet #erp #softwareengineering

12 min read

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Jeff Tsai

Oct 27

Day 3: The Northwind Case Study: Eight Forms and a Custom Business Object

#architecture #dotnet #erp #softwareengineering

13 min read

Jeff Tsai

Oct 26

Day 2: An Overview of Definition-Driven Architecture

#architecture #dotnet #erp #softwareengineering

11 min read

Jeff Tsai

Oct 25

Day 1: Why ERP Needs a Definition-Driven Framework

#architecture #dotnet #erp #softwareengineering

14 min read

Jeff Tsai

Oct 13

A JSON-RPC Library With No Method Registration: How Does It Decide What Can Be Called?

#dotnet #csharp #aspnetcore #opensource

10 min read

Jeff Tsai

Oct 13

One OAuth2 Library for Every Kind of .NET App

#dotnet #oauth #csharp #maui

6 min read

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Jeff Tsai

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Day 4: The Purpose and Classification of Definition Files

Want to connect with Jeff Tsai?

Day 3: The Northwind Case Study: Eight Forms and a Custom Business Object

Day 2: An Overview of Definition-Driven Architecture

Day 1: Why ERP Needs a Definition-Driven Framework

A JSON-RPC Library With No Method Registration: How Does It Decide What Can Be Called?

One OAuth2 Library for Every Kind of .NET App