Following are a number of back-translations as well as a sample translation for translators of Job 15:20:

• Kupsabiny: “Sinners are punished during all their life,
  as long as they live in the land/world.” (Source: Kupsabiny Back Translation)
• Newari: “Evil men suffer for their entire lives.
  The years of those who have no compassion have been counted and determined.” (Source: Newari Back Translation)
• Hiligaynon: “‘A wicked man suffers his entire life.” (Source: Hiligaynon Back Translation)