CEO & Co-founder Modular
Creator of LLVM compiler infrastructure, Clang, Swift programming language, and MLIR. Co-founded Modular to build AI infrastructure and the Mojo programming language. Previously at Apple, Tesla (briefly), and Google Brain. Serves on LLVM Foundation board.
In 2018, when LLVM adopted a Code of Conduct and faced significant backlash from some community members, Lattner publicly defended the decision, emphasizing that welcoming diverse contributors strengthens open source projects. He took a clear pro-diversity stance at a time when CoC adoption was contentious in many open source communities.
Lattner created the LLVM compiler infrastructure (2000), the Clang compiler (2007), and Swift programming language (2014), all released as open source. LLVM became the foundation for compilers across the industry. Swift was open-sourced by Apple in 2015. These projects have had enormous impact on software development.