About

A coder at heart.

I build software, maintain open source, lead teams, and spend as much time as I can below the surface.

Dan Siegel speaking at a technology event

Building since the early web

My interest in code goes back to the late 1990s, when I built my first website. What started as curiosity grew into a career spanning WordPress, infrastructure, enterprise systems, cloud architecture, and cross-platform .NET applications.

I founded AvantiPoint in 2015 to help teams rescue difficult projects, build greenfield applications, train developers, and support organizations using Prism. I still like the same part of the work most: turning a complicated problem into something understandable and dependable.

1990sBuilt my first website
2015Founded AvantiPoint
2017Received the Microsoft MVP Award
TodayHelping .NET MAUI and Uno Platform teams ship better software
Microsoft Most Valuable Professional Official MVP profile
Progress Telerik Champion

Recognized for technical expertise and contributions to the developer community. Current Champions roster

The work

.NET MAUI, Uno Platform, and open source

My current work focuses on architecture for .NET MAUI and Uno Platform: cross-platform applications that need to remain understandable, testable, and maintainable after the first release. Xamarin was an important earlier chapter in that work, but the platform has been retired and its lessons now carry forward into modern .NET.

I spent two years working with the Uno Platform team, where I helped shape the project experience from the first command through application architecture. I am the original author of:

01The Uno templates
02Uno.Sdk and Uno Single Project
03C# Markup for Uno Platform
04.NET MAUI bindings for Uno Platform

Open source has taught me that writing the first version is the easy part. The real work is stewardship: listening to users, making careful API decisions, documenting tradeoffs, and maintaining trust long after the first release.

Dan Siegel presenting on stage at DevReach 2019
Speaking at DevReach 2019.

The community

Software is built with people

Conferences, user groups, maintainers, and the developers who show up with hard questions have shaped my career as much as any framework. The best technical conversations usually happen after the slides are over, when people can be honest about what worked and what did not.

Travel has been part of that story too. It has taken me from developer events to storm chasing and to Haiti, where I documented recovery work after the earthquake as a San Diego church helped permanently open a medical clinic.

Dan Siegel with David Ortinau and Gerald Versluis after a developer conference
After a conference with David Ortinau and Gerald Versluis.

Below the surface

Diving since 1996

I earned my first certification at 13 and have spent nearly three decades exploring the water, from Cocos Island and Cozumel to the reefs and walls of Roatán. Over time that grew into technical and rebreather diving.

For eight years I also dove with the San Diego Sheriff’s Department, specializing in underwater search and recovery. Evidence searches and recovery missions in difficult environments made safety, precision, preparation, and calm decision-making non-negotiable. Those lessons follow me into every kind of leadership.

Sea Hunt Divers

A second kind of building

I founded Sea Hunt Divers in West End, Roatán, because I wanted a dive operation built around small groups, genuine hospitality, and doing things the right way. The shop serves everyone from first-time divers to experienced technical and rebreather teams.

The name is a tribute to the classic television show Sea Hunt. The principle behind the operation is simple: no shortcuts. Treat every diver with respect, build real skills, and create the kind of experience I would want when arriving somewhere new.

The Sea Hunt Divers beachfront in West End, Roatán at sunset
Sunset at Sea Hunt Divers in West End, Roatán.

Perspective

Hardship does not get the last word.

As a teenager I suffered second- and third-degree burns to my leg and foot. A skin graft, permanent nerve damage, later surgeries, and chronic pain became part of my life. They are not the whole of it.

I believe adversity happens to all of us in different forms. We still get to decide what we build, who we help, and how we define ourselves. That conviction runs through my work, my diving, and every difficult problem I choose to take on.