Since 2002, he has worked as a clinical Dermatologist in private practice and at various clinics in California, Arizona, Texas, Idaho, and Wisconsin. He led the Medical Global Brigades on three charity missions to Nicaragua and Honduras and co-founded a charity called Esperanza 4 U to serve orphans and the poor in Tijuana, Mexico.
His entry into Egyptology and ancient civilizations came with reading a book, the Orion Mystery by Robert Bauval and Adrian Gilbert, and watching a documentary film, the Pyramid Code by Carmen Bolter. This exposure was instrumental in studying archeoastronomy, relearning geometry and architecture, and eventually self-teaching the Hieroglyphic language of the ancient Egyptians with the book Middle Egyptian by James Peter Allen.
Since 2016, Manu has authored a book about the architecture of the Great Pyramid and published several papers with Robert Schoch and Robert Bauval about the Great Sphinx, pyramid architecture, the Inventory Stele, and the symbols on the T-shaped pillars at Göbekli Tepe. With Archive under the Sphinx, he is making his finding available to a wider audience with the goal to bring the public at large closer to the magic and meaning of numbers and words in ancient Egypt and help to advance the progress of knowledge about how they seeded the origin of ancient civilizations.