Principal Mechanical Engineer

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. Working for Mott MacDonald Bentley, you will work on major water and wastewater schemes throughout all phases of the project from feasibility through to construction. With an annual turnover surpassing £600 million, MottMacdonald Bentley cements its position as a leader within the industry.

The sustained, robust business performance creates an ideal environment for career growth. As part of our appointment to Scottish Water’s new Enterprise, we will deliver projects at sites across Scotland. Works will include major upgrades to treatment assets, new and enhanced networks, and resilience schemes that will benefit communities across the country. 25+ years in the water sector Key Projects and Impact Enhancing resilience and service reliability through treatment works upgrades, network improvements and resilience schemes Supporting net zero and climate adaptation via low carbon design, nature based solutions and environmental compliance projects Enabling sustainable growth by delivering infrastructure that supports new development and protects existing communities Driving efficiency and affordability through integrated delivery, innovation and collaborative planning Maintaining a strong focus on customers, communities and safety across everything we do 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 wastewater treatment systems. You will play a pivotal role in shaping the mechanical functions throughout the lifecycle of various projects.

Responsibilities Lead and oversee the design, planning, and execution of the mechanical engineering aspects of our projects Provide technical expertise and guidance to our mechanical engineers and project teams. Develop knowledge and excellence within the team Mentor and develop junior engineers and team members Lead the development of the mechanical design of water and wastewater infrastructure and non-infrastructure projects through the project lifecycle encompassing P&IDs, valve schedules, pumps, tanks, process equipment, above ground pipework, lifting and access steelwork Coordinate with the wider design team of Electrical, Civil, Geotech and Process engineers Work closely with the project teams to ensure application of client’s asset standards and engage in particular technical discussions on best practice and standards waivers Work closely and collaboratively with the commercial, operational and construction teams to develop efficient, practical and safe solutions throughout design stages, construction and beyond Positively engage with the client, managing relationships and adopting a one-team approach to supporting them in achieving their aims Qualifications Chartered Mechanical Engineer or above Degree in Mechanical Engineering, or related field Strong knowledge of the water and/or wastewater industry Strong knowledge of mechanical engineering principles, practices and standards relating to process industries Excellent communication, leadership, and problem‑solving skills Proven ability to manage multiple design tasks and meet deadlines Benefits Financial wellbeing MMB match employee pension contributions between 4.5% and 7% As an independently owned business we share the financial success of the business with all our colleagues including our annual bonus schemes Payment of annual professional institution subscription costs Health and wellbeing A minimum of 33 days holiday each year, inclusive of public holidays, with the ability to buy, sell or carry over annual leave through our flexible benefits programme Access to Life Assurance / Private Medical Insurance / Critical Illness Insurance and Health Screening options We are happy to talk openly about flexible working and how we can support your responsibilities beyond the workplace Join a wide range of groups including our Advanced Employee Networks which support our LGBTQ+, gender, race and ethnicity, disability, and parents/carers communities Enhanced family and carers leave Enhanced family leave policies, including 26 weeks paid maternity and adoption leave, and two weeks paid paternity/partner leave plus the option for shared parental leave Up to 2 paid additional days leave are provided for those with significant caring responsibilities Learning and development MMB are committed to empowering our people to grow professionally and thrive in their careers. We offer structured development schemes that support your journey toward professional chartership.

From day one, employees are fast‑tracked towards chartership reviews and benefit from mentorship, hands‑on experience, and tailored training opportunities Immigration Mott MacDonald Bentley are not currently offering sponsorship to candidates under the Skilled Worker visa route in the UK. This decision is a consequence of the changes made to the Skilled Worker route by the UK Government in April 2024. We continue to welcome applications from candidates who are eligible for alternative immigration routes in the UK, that do not require sponsorship as a Skilled Worker now or in future. #J-18808-Ljbffr