Ruination is the second studio album by American death metal band Job for a Cowboy. The follow-up to their first studio album Genesis, Ruination was recorded and mixed at AudioHammer studios in Sanford, Florida with producer Jason Suecof. It was released July 7, 2009, through Metal Blade Records. The album sold around 10,600 copies in the United States in its first week of release to debut at position No. 42 on The Billboard 200 chart. The first album to feature drummer Jon Rice and guitarist Al Glassman and the last to feature guitarist Bobby Thompson, guitarist Ravi Bhadriraju and bassist Brent Riggs.
Following the departure of guitarist Ravi Bhadriraju, who left Job for a Cowboy to go back to medical school—being replaced by former Despised Icon guitarist Al Glassman, the band recorded demo tracks with producer Jason Suecof. Vocalist Jonny Davy stated in an interview with Way Too Loud!, that this material differs from the band's first full-length, to have "a bit of an old-school [death metal] touch." Davy also explained when interviewed by MetalSucks, before the release of the album, that Job for a Cowboy are "in with new influences with the next record", but not going to be a drastic shift in comparison with Genesis. He also said, "We’re just learning from our mistakes and nit picking everything and evolving as a band."