Maggiori was born in Fontainebleau in 1977. At the age of 15, during his first visit to the United States, Maggiori went on a month-long road trip from New York City to San Francisco and visited several National Parks and other sites in the Southwestern United States. He would later cite that trip as the beginning of his fascination with the Southwest and the inspiration behind his Western art.

From 1997 to 2007, Maggiori served as the lead vocalist, graphic designer, and music video director for his band, Pleymo. After signing with Epic Records the band released four studio albums and toured internationally. Pleymo went on a hiatus after 2007, but reunited in 2018 with Maggiori once again providing lead vocals. After the reunion tour announcement for the Paris concert the band had sold out Le Trianon in Paris in less than a day.

Maggiori began painting Western scenes in 2014. Since then, his works have been featured in Forbes, Flaunt, Art of the West, Southwest Art, Western Horseman and others. Maggiori has been noted in particular for the way he paints clouds in his landscape scenes, with Christopher Barker describing them as, “layered, textural monuments that both dwarf and magnify the subject with impossible detail.”

Beginning in 2017, he began to work en plein air in New Mexico, Arizona and Wyoming. Maggiori’s style and technique has drawn comparisons to Western artists Frederic Remington and Frank Tenney Johnson. Gallery owner Beau Alexander has noted that Maggiori’s paintings are unique because of his outside perspective, having not grown up in the culture of the West and that “[He] goes to great lengths to have the cowboys depicted accurately…he will use colors and techniques learned in his photo and film days to create a more dramatic scene.”