Mechanical Engineer

Internal applicants welcome

In November 2023, MMB secured its first ever framework with South West Water, the company responsible for the water and wastewater services of 1.8 million customers in Cornwall, Devon, the Isles of Scilly and parts of Dorset and Somerset. The multi‑million‑pound AMP8 contract runs for five years to 2029, with the potential for a further five‑year extension, and sees us bring our track record of innovative project delivery to the south west of England for the very first time.

We’ve got a great opportunity to be innovative and creative in these new projects to deliver affordable solutions. We’re already on site supporting the completion of an existing project and are due to land new projects on site in 2025 as we continue to demonstrate to our client just what MMB is all about.

As a 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.

• Develop the mechanical design of water and wastewater infrastructure and non-infrastructure projects through the outline and detailed design, construction, commissioning, and handover, including P&IDs, valve schedules, pump calculations, defining safe access and lifting arrangements, above ground pipework layouts, etc.
• Coordinate with the project team comprising of Electrical, Civil, Geotech and Process designers and ensure designs are completed on programme, within budget, and to the quality defined by framework specifications.
• Working 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.

• Degree in Mechanical Engineering, or related field
• Working towards IEng / CEng with a relevant Engineering Institution
• Ability to communicate effectively with team members and stakeholders
• Methodical approach to problem solving
• A valid driving licence and willingness to travel to sites across your operational region

• 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.

• 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 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.

• 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.

Mott Mac Donald Bentley are not currently offering sponsorship to…