Project Design Engineer - Mechanical

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. MMB has been named a capital delivery partner on two multi‑million‑pound ‘lots’ that will see the company deliver projects across the region through to 2030 – with the potential for a five‑year extension into AMP9 thereafter.

Wessex Water serves 2.9 million customers with water and sewerage services across the south west of England. Set for record investment in AMP8 – more than double that of AMP7 – MMB will bring its strong track record of innovation and direct‑delivery to drive a programme of work. We will be delivering schemes located around Bournemouth, Poole and South Dorset area.

• 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 multi‑disciplinary 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 and ensure designs are completed on programme, within budget and to the quality defined by each framework and industry specifications.
• Undertake design in 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.

• MMM 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.

MMB 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…