Principal Mechanical Design Engineer - Water Infra (UK)

MWH Treatment is seeking a Principal Mechanical Design Engineer to provide authoritative technical leadership across UK water and wastewater projects. You will own complex mechanical designs, guide multidisciplinary teams, ensure safety and compliance, and influence project delivery strategies while mentoring engineers across the business.

Based in the UK with flexible working, you will drive high-quality, cost-effective solutions, support major bids, and uphold governance and sustainability in