He graduated in nuclear physics and began publishing in magazines in the mid-90s. His book debut was the collection of three fantasy stories Poslední bere vše (Last Man Standing, Klub Julese Vernea, 2000). This was followed by a novel in the style of military sci-fi, Seržant (Sergeant, Klub Julese Vernea, 2002), which was also translated into Polish.

Žamboch is the author of a number of one-off stories and novellas, but he is best known for his series. The first of his “unifying” heroes was Koniáš, who featured in his first short story Zpověď válečníka (Confessions of a Warrior, 1995). He goes on to appear in the novel Na ostřích čepelí (On Sharp Blades, Poutník, 2001), the collection of short stories Ostří oceli (Blade of Steel, Fantom Print, 2002), the novella published in a miniature format Konec vlka samotáře (End of the Lone Wolf, Triton, 2005), the collection Muž na stezce (Man on the Trail, Triton, 2008) and the novel Vlk samotář (The Lone Wolf, Triton, 2008).

Žamboch is also well known as the author of the Czech equivalent of Mark Stone’s series of stories. He created the character Agent John Francis Kovář (it is not by chance that he has the initials JFK), but he also made it available to other authors, so the individual volumes in the series Kovářovy osudy (The Fortunes of Kovář) are written by different authors. At present there are 35 of them, and volumes 1 – 4 as well as 6, 7, 13, 14, 22 and 28 were written by Žamboch together with Jiří Walker Procházka. Kovář is a veteran soldier who has also seen service in NATO, and after leaving it he joins a special unit which intervenes in parallel worlds in the past and in the future.