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Principal / associate process engineer

Croydon
Permanent
Mott Macdonald
Process engineer
€60,000 a year
Posted: 26 December
Offer description

Principal / Associate Process Engineer – Mott MacDonald

Location: Cardiff, London, Cambridge, Croydon, Reading, Brighton, Leeds, Manchester, Edinburgh, Glasgow – UK

Recruiter contact: Nicola Coyle

Mott MacDonald is a global engineering, management, and development consultancy with over 20,000 employees across more than 50 countries and 140+ offices. We work across a range of industries, delivering projects that define our future and make a societal impact. Our people power our performance – we succeed when they do.


About the Water Utilities Division

The Water Utilities Division is Mott MacDonald’s centre of excellence for responding to the UK and Ireland’s water and wastewater challenges. We provide advisory services and feasibility studies to design and detail water and wastewater treatment solutions, preventing urban flooding and improving river and coastal health.


Overview of the Role

We offer a challenging opportunity for a talented Principal/Associate Process Engineer to support the delivery of UK and Ireland clients’ water and wastewater programmes.


Key Responsibilities and Duties

* Lead process engineering input across feasibility, concept, preliminary, and detailed design for water and wastewater treatment projects.
* Develop and review process designs, block flow diagrams, P&IDs, mass balances, and equipment sizing.
* Analyse operational data to identify optimisation opportunities and improve treatment performance.
* Perform process modelling and simulation to support design and operational enhancements.
* Prepare high‑quality technical reports, proposals, and client presentations.
* Check process deliverables for accuracy and compliance.
* Engage with clients and stakeholders to ensure successful project delivery.
* Mentor and support junior engineers, fostering technical growth and team development.
* Collaborate with resource coordinators to manage project resources and support recruitment and training initiatives.
* Support business development by providing technical input to proposals, tenders, and client strategies.


Candidate Specification

We seek an individual who is passionate about making a difference, ready to take broad responsibilities, and eager to progress professionally.


Essential Qualifications

* Degree in Chemical Engineering or a related engineering field.
* Chartered Status (CEng) with a recognised Professional Institution.
* Proven experience in municipal water and/or wastewater treatment.
* Strong understanding of conventional and emerging treatment technologies.
* Significant experience in developing and delivering feasibility, outline, and detailed process designs.
* Demonstrated ability to conduct root‑cause analysis and optimise treatment processes.
* Excellent technical report writing skills in concise English.
* Excellent communication skills for client interaction and team collaboration.
* Skilled in reviewing technical deliverables, calculations, and reports.
* Commitment to continuous professional development and staying abreast of emerging technologies.
* Willingness to contribute to technical knowledge networks and promote best practice.


UK Immigration

Mott MacDonald Ltd. are not currently offering sponsorship to candidates under the Skilled Worker visa route in the UK. We welcome applications from candidates who are eligible for alternative immigration routes that do not require sponsorship.


Agile Working

We offer a hybrid working policy that embraces flexibility and trust, allowing you to work most effectively to meet client, team, and personal commitments.


Equality, Diversity, and Inclusion

We put equality, diversity, and inclusion at the heart of our business, promoting fair employment practices and ensuring equal opportunities for all. We encourage individual expression and are committed to creating an inclusive environment where everyone can contribute.


Accessibility

If you are disabled or require support to apply or attend an interview, contact reasonable.adjustments@mottmac.com for assistance.


We Offer Some Fantastic Benefits Including


Health and Wellbeing

* Private medical insurance for all UK colleagues.
* Health cash plan to support everyday health costs and treatments.
* Access to Peppy, providing free support from menopause experts for all UK colleagues.
* Wellbeing support through our comprehensive wellbeing programme for you and your family.
* Flexibility to adjust your salary to opt into a wide range of health benefits, extendable to your family.


Financial Wellbeing

* We match employee pension contributions between 4.5% and 7%.
* Life assurance up to 4x your basic salary, with an option to increase to 6x your salary.
* Income protection scheme providing financial benefit and support for long‑term illness or injury.
* Flexible benefits, including increased life assurance cover, critical illness insurance, payroll saving and will‑writing.
* Annual bonus schemes reflecting the financially successful nature of our independently owned business.


Lifestyle

* Minimum of 33–35 days holiday each year, inclusive of public holidays; holiday entitlement increases to a minimum of 35 days after 5 years’ service.
* Variety of employee saving schemes and discounts from high‑street retailers.


Enhanced Family and Carers Leave

* Enhanced family leave policies, including 26 weeks paid maternity and adoption leave, and two weeks paid paternity/partner leave.
* Shared parental leave matches maternity leave, paying up to 24 weeks at full pay.
* Up to five additional days leave for those with significant caring responsibilities, two of which are paid.


Learning and Development

* Primary annual professional institution subscription.
* Broad range of opportunities to enhance technical and soft skills through mentoring, formal training, and self‑development options.


Networks, Communities, and Social Outcomes

* Join a wide range of groups including Advanced Employee Networks supporting LGBTQ+, gender, race and ethnicity, disability, and parents/carers communities.
* Make a difference within our communities through social outcomes.


Contract and Work Pattern

Contract Type: Permanent

Work Pattern: Full Time


Job Reference

Job Ref: 12857

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