Mark Seemann helps programmers make source code easier to maintain.

He is an experienced programmer and international conference speaker, particularly interested in functional programming and object-oriented design with Haskell, F# and C#. Occasionally writes and speaks about various development topics. Always striving to be better, learning new technologies, never satisfied with software before it's (close to) perfect, and never backing down from a tough challenge.

Specialties: Haskell, F# and C# development, functional programming, object-oriented design, software architecture, test-driven development, REST, service-oriented architecture.Mark is author of the books 'Code That Fits in Your Head' and 'Dependency Injection in .NET Core'.