Mott MacDonald Bentley is a fully integrated design and build business combining the design expertise of Mott MacDonald with the contracting experience of JN Bentley to deliver award winning projects. With an annual turnover surpassing £500 million, Mott Macdonald Bentley cements its position as a leader within the industry. The sustained, robust business performance creates an ideal environment for career growth.MMB has extended its contract with Thames Water for an additional five years. As the largest water and wastewater provider in the UK, Thames Water serves 15 million customers throughout London and the Thames Valley. This extension will carry the current workload beyond the end of AMP8 in March 2030. We are delivering work in the Thames Valley region (extending from Cirencester in the west to the M25 and from Basingstoke in the South to Banbury in the North). This sees us undertake a varied programme of sizable projects in wastewater treatment, clean water production and Infrastructure (Water and Wastewater networks).As a Principal Mechanical Engineer, you will contribute to projects that significantly impact our environment and communities. Working primarily in the UK water market, MMB provides the feasibility, design, construction, and commissioning services needed to keep water flowing and wastewater treated. You''ll work on projects that make a real difference to our environment and our communities by enhancing the efficiency and effectiveness of water and ..... full job details .....