Simen Haugen Endsjø is a self-taught programmer based in Oslo, known for his work in software development. With experience from national broadcasting, he has developed a number of libraries and tools, especially for programming languages such as Common Lisp and Emacs. Endsjø has also contributed to knowledge sharing through the publication of articles on functional programming and software licenses.
In addition to his work on tools and libraries, he has created an Android game called MeteorApocalypse. Endsjø is active in the open source environment, where he has several code repositories available to the community. His interest in functional programming and its applications is a central part of his work, focusing on simplifying programming processes for developers.