Mott MacDonald
2027 UK Graduate Wastewater Network Modeller Career Path
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Job Description
Engineer a Better Tomorrow – For People, Planet, and Progress
At Mott MacDonald, we’re more than just an engineering, management, and development consultancy—we’re a purpose-driven community of passionate individuals committed to shaping a better future. As a wholly employee-owned business, we choose our own direction and focus on what truly matters: delivering meaningful outcomes for our clients, empowering our people, and making a positive impact in the communities where we live and work.
We work across incredible global industries, delivering exciting work that is defining our future and making an important societal impact. It’s our people who power that performance—we succeed when they do.
About the Role
We’re currently looking for a Graduate Wastewater Network Modeller to join our Water Utilities Division, a centre of excellence that supports colleagues across our global business. You’ll be part of a team tackling some of the most pressing challenges of our time—climate change, ageing infrastructure, pollution incidents, Combined Sewer Overflow (CSO) spills, and population growth—by designing resilient wastewater networks and delivering major pipeline transfers and drainage systems that protect communities and the environment.
This role offers a fantastic opportunity to grow your technical and project management skills through diverse and impactful project work. You’ll be supported by senior and principal modellers and collaborate across our UK-wide modelling team, gaining exposure to national and international water frameworks.
What You’ll Be Doing
- Build and calibrate 1D and 2D hydraulic models
- Assess and influence CSO activity and operation to meet sector targets
- Evaluate foul water flooding and wastewater network resilience
- Develop mitigation solutions and present options to clients
- Work with industry-standard modelling software, GIS, and coding tools
- Produce high-quality reports and visualisations
- Collaborate with multidisciplinary teams across the business
Candidate Specification
At Mott MacDonald, we’re looking for curious, motivated graduates who want to make a real difference. Join our purpose-driven teams where your ideas matter, your growth is supported, and your work enhances the world we live in.
To be eligible for this opportunity, you will have less than 12 months’ relevant experience (excluding placements) and have a degree (obtained no earlier than 2025) or expected to achieve one of the following degree disciplines:
- Geography
- Hydrology and Water Management
- Water and Environmental Engineering
- Environmental Science
- Civil Engineering
- Mathematics
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 are looking for graduates with the following strengths:
- Methodical approach to problem solving
- Ability to use your initiative to undertake tasks efficiently and independently
- Excellent verbal communication skills, which allow you to confidently liaise with clients and team members
- Excellent written communication and attention to detail and be able to demonstrate accurate technical drawings and good report writing
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UK Immigration
Mott MacDonald Ltd. are not currently offering sponsorship to candidates under the Skilled Worker visa route in the UK. This decision is as 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.
Accessibility
We want you to feel supported and able to perform at your best throughout our recruitment process. If there is anything we can do to make applying or interviewing with us more accessible, please contact us at reasonable.adjustments@mottmac.com and we'll be happy to discuss how we can help.
About your development
A graduate position should be more than just a job. We know this and so do you. That’s why with our graduate roles we aim to give you the experience and technical knowledge you need to progress your career. From the moment you join us, you’ll receive the training you need. You will be assigned a mentor, who will guide you to meet the objectives of your professional training needs. You will join our three-year early careers soft skills development programme – Accelerating your Future, which is designed to give you the skills and tools necessary for a long-lasting successful career here at Mott MacDonald.
Our social side
Being part of Mott MacDonald means more than just work; there’s a huge range of fun and exciting things that you can get involved in. From the moment you join us, you’ll have the opportunity to expand your social and professional network, whether it’s meeting other graduates or joining forces with other members of staff from around the company at our annual sports day. Each of our offices have a sports and social committee which will give you the chance to be part of a variety of sports, social and charity events. We’re committed to promoting a strong culture of social responsibility and encourage our staff to play active roles in the local community. It's worth noting that sports and social committees tend to vary from office to office, so as well as getting involved in what’s already on offer, don’t be afraid to suggest new events or initiatives that you think could be a great addition. From your first day, you’ll have access to Perks at Work, giving you discounts on cinema tickets, travel, utilities and much more, helping you make the most of our employee benefits.
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Agile working
At Mott MacDonald, we believe it makes business sense for you and your manager to choose how you can work most effectively to meet your client, team, and personal commitments. We offer a hybrid working policy that embraces your well-being, flexibility, and trust.
Equality, diversity, and inclusion
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.
Benefits
Financial wellbeing
- Biannual salary reviews
- Employee pension contributions matching between 4.5% and 7%
- Life assurance equal up to 4 x your basic salary, with an option to increase the level of cover to 6 x your salary
- Income protection scheme
- Flexible benefits, including increased life assurance cover, critical illness insurance, payroll saving and will writing
- Annual bonus schemes
Employee Ownership
- Employee ownership model means no external investors, just us
- Employees have a stake and a voice in our business
- Direct connection to our success through personal and group performance bonuses
- Opportunity to connect directly with senior leadership through formal channels
- Direct pathway towards ownership from day one for senior roles
Health and wellbeing
- Private medical insurance for all UK colleagues
- Health cash plan
- Access to Peppy, providing free support from menopause experts for all UK colleagues
- Comprehensive wellbeing program
- Ability to flex your salary to opt into a wide range of health benefits
Lifestyle
- 33 days holiday each year, inclusive of public holidays and dependent on level, with the ability to buy or sell leave
- 10 days additional paid leave for Armed Forces Reservists and Cadet Force Adult Volunteers
- Holiday entitlement increased 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
- 26 weeks paid maternity and adoption leave
- Two weeks paid paternity/partner leave
- Shared parental leave matches maternity leave meaning we pay up to 24 weeks at full pay
- Up to five additional days leave are provided for those with significant caring responsibilities, two of which are paid
- Policies and dedicated support to help military families balance service life with career and wellbeing
Learning and development
- Primary annual professional institution subscription
- Opportunities to enhance both technical and soft skills through mentoring, formal training, and self-development options
Networks, communities, and social outcomes
- Advanced Employee Networks which support our LGBTQ+, gender, race and ethnicity, disability, and parents/carers communities
- Signatories of the Armed Forces Covenant and Gold Award holders in the MOD Employer Recognition Scheme
- Opportunities to make a difference within our communities through our social outcomes
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