Commercial Gas Certified: CODNCO1, TPCP1 / TPCP1A, ICPN1, CIGA1, CORT1, COCN1 * Domestic Gas Certified: CPA1, DAH1, CKR1, HTR1, CENWAT1, CCN1. My client is a national Facilities Management provider who have a new vacancy for a Commercial Gas Engineer to work on a mobile basis working on various com...