Senior Associate Process Engineer

Join to apply for the Senior Associate Process Engineer role at Mott Mac Donald
.

Location:

Cardiff, London, Croydon, Cambridge, Reading, Brighton, Leeds, Manchester, Edinburgh, Glasgow.

Contract Type:
Permanent | Work Pattern:
Full Time | Market:
Water | Discipline:
Water | Job .

We have an exciting opportunity for a Senior Associate Process Engineer to join our team and play a pivotal role in delivering innovative water and wastewater solutions for clients across the UK and Ireland. This senior position offers the chance to lead complex projects, shape technical strategy, and influence the future of water and wastewater treatment.

• Provide strategic leadership and technical direction across feasibility, concept, preliminary, and detailed design stages for water and wastewater treatment projects
• Oversee and approve process designs, including block flow diagrams, P&IDs, mass balances, and equipment sizing, ensuring technical excellence and compliance
• Drive optimisation initiatives by analysing operational data and applying advanced process modelling and simulation techniques
• Author and review high-quality technical reports, proposals, and presentations for senior stakeholders and clients
• Act as a trusted advisor to clients, building strong relationships and influencing decision-making
• Champion quality assurance by checking and approving process deliverables
• Mentor and develop technical teams, fostering a culture of innovation and excellence
• Collaborate with resource managers to shape team capability, support recruitment, and lead training initiatives
• Play a key role in business development by guiding proposals, tenders, and strategic pursuits in the water and wastewater sector
• Contribute to setting and challenging technical standards, ensuring adoption of best practice and emerging technologies

• Degree in Chemical Engineering or a related discipline
• Chartered Engineer (CEng) status with a recognised professional institution
• Extensive experience in municipal water and/or wastewater treatment, including leadership of complex projects
• Deep understanding of conventional and emerging treatment technologies
• Proven ability to conduct root‑cause analysis and deliver optimisation strategies
• Strong track record in developing and delivering feasibility, outline, and detailed process designs
• Exceptional technical writing and communication skills, with the ability to engage senior stakeholders
• Demonstrated leadership in reviewing technical deliverables and ensuring compliance
• Strategic mindset with experience in business development and client engagement
• Commitment to continuous professional development and staying ahead of industry trends
• Active contributor to technical knowledge networks and advocate for best practice

Mott Mac Donald Ltd. are not currently offering sponsorship to candidates under the Skilled Worker visa route in the UK. 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.

We offer a hybrid working policy that embraces your well‑being, flexibility, and trust.

We put equality, diversity, and inclusion at the heart of our business, seeking to promote fair employment procedures and practices to ensure equal opportunities for all. We encourage individual expression in our workplace and are committed to creating an inclusive environment where everyone feels they can contribute.

We want you to perform your best at every stage in the recruitment process. If you are disabled or need any support to enable you to apply or attend an interview, please contact us at reaso and we will talk to you about how we can support you.

• Private medical insurance for all UK colleagues.
• Health cash plan to support you with everyday health costs and treatments.
• Access to Peppy, providing free support from menopause experts for all UK colleagues.
• A variety of wellbeing support is available through our comprehensive wellbeing…