Mott MacDonald
Principal / Associate Process Engineer
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Principal / Associate Process Engineer
Principal/Associate Process Engineer – Water Utilities Division
Locations: Cardiff, London, Cambridge, Croydon, Reading, Brighton, Leeds, Manchester, Edinburgh, Glasgow | UK
Recruiter Contact: Nicola Coyle
About Mott MacDonald
Mott MacDonald is a global engineering, management, and development consultancy with over 20,000 employees across 50+ countries and 140+ offices. We drive transformative projects across industries, delivering societal impact and fostering excellence.
Rooted in our employee-owned model, we empower every individual to learn, grow, and excel. From technical expertise to leadership development, we create an inclusive environment where collaboration and ambition define success—because we thrive when our people do.
About the Division
The Water Utilities Division is Mott MacDonald’s centre of excellence for responding to the UK and Ireland’s water and wastewater challenges. Our work ensures:
- Safe water supplies for future generations
- Flood risk mitigation in urban centres
- Improving river and coastal ecosystems
With multi-disciplinary teams, we provide end-to-end support—from advisory and feasibility studies to design and implementation—delivering best-in-class solutions while offering stimulating career growth.
Overview of the Role
We are seeking a talented Principal/Associate Process Engineer to leverage your expertise and drive our UK and Ireland water programmes, ensuring seamless delivery for our clients.
Key Responsibilities
- Lead process engineering input across feasibility, concept, preliminary, and detailed design for water treatment projects
- Develop and review process designs, including:
- Block flow diagrams
- P&ID (piping and instrumentation diagrams)
- Mass balances and equipment sizing
- Operational data analysis to identify performance optimisations
- Process modelling and simulation for design enhancements
- Write and deliver technical reports, proposals, and client presentations
- Review process deliverables (calculations, reports) for accuracy and compliance
- Engage with clients and stakeholders to ensure on-time, high-quality project delivery
- Mentor junior engineers, promoting technical development and team cohesion
- Collaborate with resource coordinators to manage project resources, including recruitment and training initiatives
- Support business development by providing technical input for tenders and strategies
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Requirements
We are looking for a dedicated professional eager to drive change, take ownership, and advance personally.
Essential Criteria
- Degree in Chemical Engineering or a related discipline
- Chartered Engineer (CEng) status with a recognised Professional Institution
- Proven experience in municipal water treatment
- Strong knowledge of:
- Conventional and emerging treatment technologies
- Significant experience in designing feasibility, outline, and detailed process designs
- Ability to conduct root-cause analysis and process optimisation
- Excellent technical writing skills with clear, coherent English
- Strong communication and stakeholder engagement abilities
- Commitment to continuous professional development
- Willingness to participate in technical knowledge-sharing networks
Company Policy
Immigration and Visa Sponsorship
Mott MacDonald currently does not offer Skilled Worker visa sponsorship due to UK Government changes in April 2024. Applications from candidates under alternative UK immigration routes are welcomed.
Agile Working
We believe in flexibility and trust. Our hybrid working model supports well-being, collaboration, and balance while meeting business and personal commitments.
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Equality, Diversity, and Inclusion
We celebrate individuality and diversity, ensuring equal opportunities for all. Our commitment to inclusion and accessibility facilitates an empowering, representative workplace.
Support for Accessibility
If you require reasonable adjustments during the application or interview process, please contact: reasonable.adjustments@mottmac.com
Benefits
Health & Wellbeing
- Private medical insurance
- Health cash plan for daily expenses
- Peppy support for menopause-related needs
- Family wellbeing initiatives, including counselling for teams
Financial Wellbeing
- Matching pension contributions (4.5%–7%)
- Life assurance (up to 4x salary; optional increase to 6x)
- Income protection scheme with return-to-work support
- Flexible benefits, extending cover to life assurance, critical illness insurance, and savings schemes
Flexibility & Family Support
- 33–35 paid holidays, escalating to 35 days after 5 years
- ** Hybrid work** and flexible salary adjustments
- Enhanced maternity/adoption leave (26 weeks paid)
- Shared parental leave (up to 24 weeks at full pay)
- Caring responsibilities leave (up to 5 days, 2 paid)
Learning & Development
- Annual subsidy for professional institution membership
- Training programmes and mentoring opportunities
Work-Life Integration
- Voluntary schemes (charitable donations, discounted shopping)
- Inclusive Networks: Advocacy for LGBTQ+, gender, disability, and parent/carer communities
- Social impact programmes to support wider communities
Location Options: Manchester, Cambridge, Reading, Cardiff, Glasgow, London, Croydon, Edinburgh, Brighton, Leeds
Contract: Permanent | Work Pattern: Full Time
Job Reference: 15002
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