Caledonian Construction are recruiting for 1 x Core Drilling Supervisor needed to support project Central London locations:* Experienced in the art of Diamond and Core drilling and overseeing drillers* We require 8 Drillers to work in London and x 2 supervisors* Night shifts , 11 pm until 5 am , 5 nights a week* 2 year project duration working on London underground ,* If you have a sentinel card and underground experience it would be beneficial , however not essential as we can book the course ...