David Loo

David Loo

Business Owner/Contractor

Welcome to WeiTech Development.

Who am I

My name is David, I am a contractor and a freelancer with over 20 years of experience in building custom application solutions for clients. I am a registered Microsoft Partner and a Microsoft Certified Professional.

In my past work experience I have worked in various industries in Australia. Working in these industries has helped me gain wealth of knowledge of each industry’s processes and operations. The industries that I have worked in are:

  • Mining
  • Finance
  • Aviation
  • Law Enforcement
  • Government

If you are interested in finding out more about my work experience and what skills I can offer. Please contact me to request for a copy of my CV.

What services do I provide

Below are some of the core development services I provide. If you would like to find out more about my services, please go to my Services page.

  • Custom SharePoint Development
  • Custom Software and Web Development
  • Microsoft 365 Development
  • Contracting and Resource

The Journey

When I am working on a project I apply my 6 principles during the journey from start to end. I also provide on going support to all projects I deliver and I will make sure what I have built for your business has value.

Project Delivery 6 Principles

(Click on each one to read more about it)


We provide professional guidance and advice to our clients. We are the bridge between finance and IT by leading the efforts to implement business solutions driving revenue gains and cost savings for businesses.


We help clients to define the architecture, components, modules, interfaces and data to satisfy their requirements.


We build solutions with modern technologies and tools. We adopt development best practices and methodologies.


We guarantee our clients with quality assurance. We will create test cases and work with stakeholders to test the solution or product before delivery.


We ensure that projects are delivered on time and meets the client’s expectation and budget.


We continue to provide ongoing support to our clients and ensuring the client is entirely benefiting their new business solution.