Cesar’s first published short story ran in the now-defunct Willows magazine in 2008. In 2012, Cesar created Solar Six, a startup that publishes his books in paperback and as e-books. Cesar’s debut novel 13 Secret Cities, launched in 2013. Since then, Cesar has also written and published How to Kill a Superhero, the LGBT fantasy book series (which he writes under the pen name Pablo Greene). Cesar's next novel, 9 Lords of Night, a thriller set in Chicago and New York City, is scheduled to publish in 2017.
Cesar graduated from the undergraduate program from Medill at Northwestern University in 1996, and he earned a masters in science in human-computer interaction from DePaul University. He spent the first ten years of his career at Tribune Company and Tribune Interactive as a producer, developing breaking news content for Tribune’s network of newspaper web sites. During the tech boom of the late 90’s he also served as a syndication producer for Encyclopaedia Britannica’s foray into search technology and web-based encyclopedic content. After spending a few years in the middle aughts as editor and web publisher for healthcare entities such as HIMSS and The Rehabilitation Institute in Chicago, Cesar made a change in his focus by turning his focus to technology and the ways in which tech is impacting human culture and human behaviors. He served as Social Editor for the Conde Nast tech publication Ars Technica. Cesar also served a key role as managing editor in the founding stages of the consumer-product sites The Wirecutter and The Sweethome.