Principal Geotechnical Engineer - Lead UK Rail & Tunnelling

COWI A/S is looking for a Principal Geotechnical Engineer to join their International Geotechnical team in London or Derby. This role involves leading engineering design projects, coordinating teams, and mentoring junior engineers. Candidates should have a Master's or equivalent in Engineering Geology or Civil Engineering, Chartered status, and experience in a design environment. The position offers benefits including 28 days' holiday, private healthcare, and flexible working conditions.