Senior Process Engineer - Southern England
Listed on 2026-03-05
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Engineering
Environmental Engineer, Water Engineer
Location
Location/s:
Brighton, Croydon, London, Reading, Cambridge, Southampton; UK
Recruiter contact:
Aoife Cullen
Mott Mac Donald is a global engineering, management, and development consultancy with over 20,000 employees across more than 50 countries and 140+ offices. We work across global industries, delivering work that defines our future and makes an important societal impact in the communities we serve. Our people power our performance – we succeed when they do. With opportunities to collaborate, learn, and grow, the possibilities for excellence are as varied as every individual.
We are an employee-owned business, investing in creating the right space for everyone to feel empowered, included, and valued.
About The Business Division
The Water Utilities Division is Mott Mac Donald’s centre of excellence for responding to the UK and Ireland s water and wastewater challenges. The work we do ensures safe water supplies for future generations, prevents urban flooding, and improves the health of our rivers and coastal environments. Our multi-disciplinary teams provide services across the full project life cycle, from advisory services and feasibility studies to outline and detailed design.
We deliver best-in-class solutions to our clients while offering diverse and technically stimulating opportunities to our people.
The Role
Join our dynamic and award-winning One Water Team at Mott Mac Donald, committed to our Clients, our People and the Environment. Our process engineering team works as part of a fully integrated multi-disciplinary service offering. We deliver client-centric solutions across a diverse portfolio of water sector projects and frameworks. Building on our 70-year track record in Ireland, we have secured numerous framework appointments up to 2030 and beyond, allowing us to grow our pool of talented Process Engineers.
We are agile across resource teams, offering candidates excellent career progression opportunities. We are the core of our global water and wastewater delivery capability, providing support to colleagues across our global business. You will work alongside industry-recognised experts to deliver value to key utility company clients, such as Uisce Éireann, NI Water, Scottish Water and other AMP water companies. You will undertake process investigation and design across all stages of water and wastewater scheme development;
from high level master planning through to detailed design and commissioning.
Your typical duties and responsibilities will include preparation of studies and reports, process calculations and drawings to support other disciplines in the preparation of their deliverables. You will also be involved with business development including providing specialist support to our account leaders and engineering practices. The role will require mentoring a team of engineers and scientists, and you will play a key role in their professional development.
The role may also include line management responsibility in future.
Essential
- Degree in Chemical Engineering or related engineering field
- Chartered Status (CEng) with a recognised Professional Institution
- A deep understanding of conventional and innovative water treatment technologies
- Track record of process engineering technical leadership, being client facing and driving innovation and low carbon solutions
- Significant experience in development and delivery of outline, feasibility and detailed process engineering design solutions within Ireland and/or the UK water sector using appropriate calculation tools, including excellent technical report writing skills in concise English
- Track record in conducting water treatment plant and process root-cause analysis reviews
Desirable
- Track record in building teams and capability of junior staff
- Understanding of key water sector treatment and sustainability needs
- Ability to support process elements of bids, fee proposals or offers of service
- Strong communication skills with experience in effective collaboration across internal multi-disciplinary teams as well as Client teams
- Ability to travel to sites in various locations across Ireland and the UK
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