Overview
Join to apply for the 2026 UK Graduate Mathematical Modeller Career Path role at Mott MacDonald.
Model the Future. Solve Complex Challenges. Deliver Lasting Impact. At Mott MacDonald, we believe in using data, science, and innovation to protect our environment and improve lives. As a Graduate Mathematical Modeller, you’ll be part of a dynamic team tackling global challenges—from climate change and water scarcity to pollution and flood risk. You’ll work alongside leading experts in environmental engineering, flood risk and water resources, applying advanced modelling techniques to support strategic decisions and sustainable infrastructure. Your work could involve preventing sewage spills, devising nature-based solutions, or minimising the carbon footprint of flood defences, bringing tangible benefits to communities and ecosystems.
What You’ll Be Doing
You’ll contribute to multidisciplinary projects across the UK and internationally, using cutting-edge tools and techniques. Your responsibilities may include:
* Hydrodynamic & water quality modelling: Use industry-standard packages (e.g. TUFLOW, Flood Modeller Pro, HEC-RAS, InfoWorks ICM, Delft3D) and CFD software (e.g. ANSYS Fluent, Flow-3D) to simulate environmental systems and bring design to life.
* Data analysis & insight: Analyse large datasets to uncover patterns, inform decisions, and provide insight to the processes that drive our society’s environmental impacts.
* Computational innovation: Develop scripts and tools using languages like Python or R to analyse data and enhance visualisations. Pursue innovation in computational design by taking advantage of technologies such as AI, cloud computing, remote sensing and digital twins.
* Collaboration & support: Work with engineers, planners, and asset managers to deliver high-impact solutions, while mentoring junior colleagues and contributing to team development.
* Professional growth: Receive mentoring and training to support your journey toward Chartership and technical specialisation.
Candidate Specification
We are looking for committed and motivated graduates with a genuine passion and a desire to make a difference in the world. If this describes you, apply today to launch your career at Mott MacDonald. To be eligible for this opportunity, you will have less than 12 months’ relevant experience (excluding placements) and have a minimum of a bachelor’s degree (obtained no earlier than 2024) or expected to achieve one, in one of the following degree disciplines:
* Mathematics
* Civil Engineering
* Mechanical Engineering
* Hydrology
* Geophysics
In your application, you should aim to demonstrate your genuine interest in both the opportunity and in joining Mott MacDonald. You can do this by highlighting any relevant experience or interests - such as modules you've studied, previous work experience, or any research you've undertaken about our company, values, and projects.
We personally review every completed application form we receive as this part of our selection process is entirely human led; we do not use AI tools at this stage and kindly expect you not to either. We want you to answer each application question with authenticity so we can get to know the real you. Joining us as a graduate is your opportunity to shape your own story.
We Are Looking For Graduates With The Following Strengths
* Proactively takes initiative to complete tasks efficiently and independently.
* Communicates effectively and clearly with clients and colleagues.
* Delivers high quality written work with strong attention to detail and clarity.
* Demonstrates a structured and analytical approach to problem solving.
As we want the best people for the role, we support flexible working. Please ask us at interview stage about any flexibility you may need.
Mott MacDonald Ltd. are not currently offering sponsorship to candidates under the Skilled Worker visa route in the UK. This decision is a consequence of the changes made to the Skilled Worker route by the UK Government in April 2024. Our ethos is to develop, train and retain our graduates and therefore we are looking for a long-term relationship with our graduates. For this reason, we cannot accept applications from candidates who would be working under the Graduate visa route or other time-limited visas, (irrespective of visa duration), due to their temporary nature and the requirement for sponsorship under the Skilled Worker route in future. 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.
About Your Development
A graduate position should be more than just a job. With our graduate roles, you’ll receive the training you need, including assignment of a mentor and participation in our three-year early careers soft skills development programme – Accelerating your Future. This is designed to give you the skills and tools necessary for a long-lasting successful career at Mott MacDonald. You’ll have the opportunity to make a difference and learn about Our Purpose and the difference we can make.
You’ll get:
* Biannual salary reviews: for the first three years, biannual salary reviews.
* A competitive salary aligned with current industry standards.
* Contributory pension up to 7% of your salary.
* A flexible benefits scheme to suit your needs.
Our Social Side
Being part of Mott MacDonald means more than just work. You’ll have opportunities to expand your social and professional network, join sports and social events, and participate in community activities. Offices may vary in available events, and you’re encouraged to suggest new initiatives. Access to discounts on cinema, travel, fashion, utilities and more is available as part of our benefits from day one.
Equality, Diversity and Inclusion
We place equality, diversity and inclusion at the heart of our business, promoting fair employment procedures and equal opportunities. We encourage individual expression in our workplace and are committed to an inclusive environment where everyone can contribute.
Agile Working
We believe it makes business sense to choose how you work to meet client, team and personal commitments. We embrace agility, flexibility and trust.
More About Mott MacDonald
We’re a global engineering, management and development consultancy. Our purpose is to improve society by considering social outcomes in everything we do, focusing on excellence and digital innovation. We respect differences and strive to meet diverse needs. Our values: progress, respect, integrity, drive, excellence.
Location(s): Brighton, Cambridge, Leeds, UK. Contract Type: Permanent. Work Pattern: Full Time. Market: Water. Discipline: Planning and modelling. Job Ref: 11669. Recruiter Contact: earlycareers.recruitment@MottMac.con
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