Plumber Pipefitter Temporary Harwell Science Park, Oxford Rate of pay: Umbrella / CIS self-employed / LTD CIS / LTD self-employed = £2-25 ph. Are you a plumber pipefitter looking for work? ARC is currently looking for a plumber pipefitter in Oxford for ongoing commercial works. We are looking for plumber pipefitters that are competent in soldering. For this position, you must have the following: • CSCS • ...