Project Design Engineer - Mechanical

Internal Applicants are Welcome

Internal applicants are welcome.

Mott Mac Donald Bentley is a fully integrated design and build business combining the design expertise of Mott Mac Donald with the contracting experience of JN Bentley to deliver award‑winning projects. In November 2023, MMB secured its first‑ever framework with South West Water, a contract that runs for five years to 2029 with a potential further five‑year extension. We are supporting the completion of an existing project and expect new projects to land on site in 2025, bringing our innovative delivery to the south west of England for the first time.

The Project Design Engineer – Mechanical role combines elements of traditional Project Management and Design Engineering, managing projects through the outline and detailed design lifecycle, supported by our multidisciplinary teams.

• Be part of a unique and dynamic design‑and‑build environment?
• Manage the design of water and wastewater projects?
• Fast‑track your chartership and attain a clear route for career progression?
• Be a member of a multidisciplinary project team, supporting both your and the team's personal and professional development?
• Have the flexibility of working from home, office and site?
• Have the opportunity to see your designs brought to life?

• Work as part of a project triangle alongside a Site Manager and Quantity Surveyor to ensure that technical, constructability and commercial aspects of project delivery are considered throughout.
• Lead the design of treatment or infrastructure projects from the initial outline to detailed design, through construction, commissioning, and handover.
• Coordinate the project team including civil, electrical, mechanical and process designers, BIM modelers and technical specialists to ensure designs are completed on programme, within budget, and to the quality defined by each framework and industry specifications.
• Undertake design in one's own discipline and mentor less experienced colleagues where appropriate.
• Build positive relationships with the clients' project, operational and technical assurance teams and promote a “one‑team” approach.

• Accredited degree in Mechanical Engineering.
• Incorporated member of an Engineering Institution.
• Outline and detailed design experience of water or wastewater projects.
• Knowledge of the Designer or Principal Designer duties under CDM 2015.

• MMB matches 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 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 two paid additional days leave are provided for those with significant caring responsibilities.

• MMB is 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 toward chartership reviews and benefit from mentorship, hands‑on experience, and tailored training opportunities.

Mott Mac Donald Bentley are not currently offering sponsorship to…