Joel Spolsky

Avram Joel Spolsky (Hebrew: אברם יואל ספולסקי; born 1965) is a software engineer and writer. He is the author of Joel on Software, a blog on software development, and the creator of the project management software Trello. He was a Program Manager on the Microsoft Excel team between 1991 and 1994. He later founded Fog Creek Software in 2000 and launched the Joel on Software blog.