Senior Water Quality Modeller
Mott MacDonald – Location: London, Cambridge, Bristol, Manchester & Leeds; UK (other UK locations considered). Recruiter contact: Laura Easdon. Mott MacDonald is a global engineering, management and development consultancy committed to improving society by focusing on excellence and digital innovation.
Overview of Role: As a senior water quality modeller you will work with a multidisciplinary team to deliver services for UK and international clients. You will use bespoke and industry standard hydrodynamic and water quality modelling packages, develop integrated river network and drainage models, investigate contaminant fate, build assessment tools, and perform statistical analyses. Opportunities exist in hydrology, systems modelling, groundwater modelling, flood modelling and computational fluid dynamics.
You will be responsible for:
* Core delivery of complex modelling projects with cross‑discipline experts.
* Analyzing large datasets to distil patterns and provide insights for effective interventions; assisting proposal writing and business development.
* Maintaining client relationships and managing projects.
* Supporting and mentoring junior colleagues.
Candidate Specification:
* Relevant degree‑level qualifications (geography, mathematics, environmental sciences, civil engineering or related).
* Chartered with an appropriate professional body.
* Track record in successful delivery of SOAF, UPM and/or river modelling projects for UK water companies.
* Good understanding of hydrodynamics, sediments and water quality processes.
* Expertise in industry standard software such as InfoWorks and/or MIKE 11.
* Willingness to innovate.
* Able to guide and mentor junior staff.
Desirable include skills:
* Coding skills and statistical foundations.
* Experience in source apportionment assessments, catchment management modelling or application of nature‑based solutions.
Benefits:
* Private medical insurance and health cash plan for all UK colleagues.
* Access to Peppy, a menopause support service.
* We contribute 4.5%–7% to employee pension contributions and offer life assurance and income protection.
* Minimum 33–35 days holiday, increased to 35 after 5 years; flexible benefits and savings schemes.
* Enhanced family leave up to 26 weeks paid maternity leave, 2 weeks paid paternity/partner leave, and additional days for caring responsibilities.
* Professional development including annual institution subscription and mentoring.
* Access to employee networks supporting LGBTQ+, gender, race, disability and parent/carer communities.
Equality, diversity, and inclusion:
We promote fair employment practices and celebrate differences. We encourage applications from people of all backgrounds.
Accessibility:
Contact reasonable.adjustments@mottmac.com for recruitment support.
Agile working:
Flexible working arrangements are discussed on application.
We are actively recruiting a diverse workforce reflective of the communities we serve. Mott MacDonald does not currently offer sponsorship for the Skilled Worker visa route.
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