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Sean Killeen

Sean is a Microsoft MVP with 15 years of experience solving problems as technical leader for commercial, non-profit, and federal clients.

He once led a successful modernization project that industry analysts called "more complex than the moon landing". He has served as a co-trainer for Excella's Agile Testing & Automation (ICAgile) and Agile Engineering (ScrumAlliance) certified courses.

Aside from loving his work way too much, there's a good chance he's enjoying/stressing about being a toddler parent, sipping great beer, exploring the Arlington area, or singing somewhere. You can find him on Twitter at @sjkilleen or blogging not nearly often enough at He doesn't bite; say hi!

See what else Sean has been up to!


Software / Solution Architects: The Sommeliers of the IT World

What I learned about different types of Architects from a sommelier in Greece.


Created by Excellian Sean Killeen with contributions from Luis Gonzalez, xluhco is an open-source web application that serves...

An Introduction to the Actor Model and Akka.NET

The Actor Model is a well-established paradigm for building fault-tolerant and scalable applications. Recently, it...

Casting a Wider .NET: OSS Maturity in the .NET Ecosystem

This talk was delivered by Sean Killeen, .NET Xpert and Managing Consultant at Excella, to...