In 2000 he founded the webzine of the Israeli Society for Science Fiction and Fantasy,[2] and in 2007 he became chief editor of Chalomot Be'aspamia, Israel's only professionally printed SF&F magazine.
He collaborated with World Fantasy Award winning author Lavie Tidhar on two novels, including the "deranged sci-fi extravaganza" (per The Jewish Quarterly) The Tel Aviv Dossier and released the English language collection The Love Machine & Other Contraptions.
[3] Yaniv returned to fiction publishing in 2024 with the novel The Good Soldier, an " amiable satire of the gung-ho heroics of military sci-fi".
[7] Yaniv has been active as a musician from early on, initially with the Israeli jazz-funk band Plutonium[8] and more recently with the Emmy Award winning soprano Hila Plitmann.
[3] From 2013 he has also been making short films as a writer/director,[10] including the animated Liftoff, a "touching, hand-illustrated piece of a man’s journey to the moon".