Principal Wet Utilities Engineer

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We are seeking a qualified and motivated Senior Wet Utilities Engineer to join our growing infrastructure team in Riyadh. In this role, you will lead the design and delivery of water, wastewater, irrigation, and stormwater infrastructure projects across Saudi Arabia, working closely with multidisciplinary teams, clients, developers, and regulatory authorities. You will contribute throughout the project lifecycle, from master planning and hydraulic modelling to detailed design and approvals, helping deliver sustainable, innovative, and high-quality utility solutions that support major urban and infrastructure developments.

Prepare reports and design documentation for water, wastewater, irrigation and storm water infrastructure projects

Supervise hydraulic modelling for water, wastewater, irrigation and storm water and hydraulic calculations

Ensure quality and timely delivery of Wet utility associated deliverables in accordance with the project time schedule

Ensure that the Wet Utility designs are in accordance with the appropriate design standards and Contract requirements

Liaise with other disciplines to coordinate the wet utility design and ensure a complete a holistic design is delivered to the client

Ensure best practice is incorporated into design submissions

Look for continuous improvement initiatives to improve productivity, including being up to date with technology for innovative delivery methods

Conduct a technical review on progress and provide design updates to the project design managers, project managers and where required clients

Check deliverables produced by others for Wet Utilities to ensure quality requirements are met

Liaise and meet with developers, clients or stakeholders to gain the required approvals and present proposals for acceptance

Coordinate aspects of projects submittal and deliverables, reviews and approvals against contract requirements. Report and advise on deviations from the same

Where required assist in providing design inputs into other discipline reports.

Outline cost and quantity estimation for wet services

Support continuous improvement and digital ways of working, sharing knowledge and lessons learned.

Demonstrate safe, ethical and inclusive behaviours aligned to Mott Mac Donald value

Minimum Bachelors’ Degree in Civil Engineering;

Professional qualified (CEng or similar) with membership in a professional institution, such as ICE (Institution of Civil Engineers),

Post graduate and significant experience, preferably in a design consultancy undertaking design work

Experience working across the design life cycle, from master planning to detailed design

Strong experience in design of pressurised and gravity systems using Civil3D

Strong experience Hydraulic modelling of pressurised and gravity systems

Ability to manage a design and approval…