He later worked at Fujitsu before co-founding his first company,, in 1997. Hoffman joined Apple Computer in 1994, where he worked on eWorld, an early attempt at building an online service.

Hoffman's uncle Eric Hoffman is a writer. His paternal great-great-great-grandfather was Theophilus Adam Wylie, a Christian Presbyterian minister and Indiana University president pro tempore. He was awarded a Marshall Scholarship for graduate study abroad, on which he earned an Master of Studies in Philosophy from Wolfson College, Oxford in 1993. He graduated from Stanford University in 1990 with a Bachelor of Science in Symbolic Systems and Cognitive Science. Hoffman attended high school at the progressive The Putney School in Vermont, where he engaged in farming activities. and worked as an editor at the game company Chaosium, then based in Oakland near his home. Hoffman was an avid tabletop roleplaying gamer as a child. He is currently a partner at the venture capital firm Greylock Partners and a co-founder of Inflection AI. Hoffman was the co-founder and executive chairman of LinkedIn, a business-oriented social network used primarily for professional networking. Reid Garrett Hoffman (born August 5, 1967) is an American internet entrepreneur, venture capitalist, podcaster, and author.

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