If running the genebank at the John Innes Institute in the UK is too tame for you, why not check out the job at WorldVeg:
WorldVeg is seeking a highly motivated and experienced Genebank Manager to manage the conservation of the Center’s vegetable germplasm, to lead and conduct research on vegetable genetic resources of both global and traditional crops in collaboration with WorldVeg scientists and partners around the world to assure the safety and duplication of the collection, and to ensure the genetic resources are utilized effectively to benefit the poor in developing countries.
You’d also get to play around with a nifty demonstration garden.