Project Design Engineer - Mechanical

Mott MacDonald Group; United States; Remote; USD 73,000 - 99,000; Full time

Benefits offered by this job

Pension match

Health & wellbeing benefits

Career development

Job summary

Mott MacDonald Bentley is seeking a Project Design Engineer - Mechanical to lead the design of water and wastewater projects from initial outline through detailed design, construction, commissioning and handover. The role emphasizes collaboration with civil, electrical and process design teams within a multi-disciplinary project environment.

You will coordinate specialists, manage design quality and ensure on-schedule delivery while supporting chartership pathways and professional development.

Qualifications

• Outline and detailed design experience of water or wastewater projects.
• Knowledge of the Designer or Principal Designer duties under CDM 2015.

Responsibilities

• Lead the design of treatment or infrastructure projects from 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 deliver on programme and budget.
• Work as part of a project triangle with Site Manager and QS to align technical, constructability and commercial aspects.

Skills

Water/wastewater design

CDM 2015 duties knowledge

Education

Accredited Degree in Mechanical Engineering

Incorporated Member of Engineering Institution

Job description

Project Design Engineer - Mechanical

2026-09-29T00:00:00

Leeds

West Yorkshire

GB

LS1 3

Work From Home

2026-12-30T07:02:00.48

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. MMB has been working with Yorkshire Water since MMB's creation in 1999, delivering a huge variety of projects - from restoring and upgrading picturesque reservoirs, to installing the latest technology to provide clean drinking water or treat sewerage to protect rivers - we've done it all. We have several frameworks with Yorkshire Water and remain a delivery partner into AMP8, keeping our team of over 300 people busy for years to come.

The Project Design Engineer - Mechanical role combines elements of both traditional Project Management and Design Engineering, managing projects through the outline and detailed design lifecycle, supported by our multi-disciplinary teams. Our unique work environment means you can thrive personally and professionally, accelerating your journey to chartership or developing your cross-discipline expertise.

Please follow the link to our Mott MacDonald Bentley YouTube to find out more about the role of a Project Leader - Project Leader campaign - YouTube.

Do you want to:

• Be part of a unique and dynamic Design-and-Build environment?
• Project 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 teams personal and professional development?
• Have the flexibility of working from home, office and site?
• Have the opportunity to see your designs brought to life?

What does a Project Design Engineer - Mechanical do day to day?

• Working 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.
• Leading the design of treatment or infrastructure projects from the initial outline to detailed design, through construction, commissioning, and handover.
• Coordinating 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.
• Building positive relationships with the clients' project, operational and technical assurance teams and promote a "one-team" approach.

What you'll need:

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

What's in it for you:

• 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.
• Note: Mott MacDonald Bentley are not currently offering sponsorship to candidates under the Skilled Worker visa route in the UK. This decision is as 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.