I'm bit torn... yes something like Swordmaster or Dual Blade w/e would sound generic but that's what most FF jobs sound like if you think about it. You have stuff like Dancer, Bard, Warrior, Fighter, Monk...

Viper just reminds me of that sports car instead of a battle job(?) lol

Even if the job ends up being thematically snake themed with venom, FFTA's Assassin job would have fit the bill naming wise perfectly