2027 Graduate Wastewater Network Modeller

Mott MacDonald Group; Cardiff; Híbrido; GBP 25.000 - 32.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Biannual salary reviews

Pension contributions match

Life assurance

Income protection

Health and wellbeing resources

Descripción de la vacante

Mott MacDonald is seeking a Graduate Wastewater Network Modeller to join our Water Utilities Division, a centre of excellence that supports colleagues across our global business. You’ll design resilient wastewater networks and support major pipeline transfers and drainage schemes that protect communities and the environment.

You’ll work with senior modellers, develop 1D/2D hydraulic models, and gain exposure to national and international water frameworks through a structured three-year early

Formación

• Degree in one of the following disciplines: Geography, Hydrology and Water Management, Water and Environmental Engineering, Environmental Science, Civil Engineering or Mathematics.
• Less than 12 months of relevant experience (excl. placements).
• Strong communication and reporting skills; ability to present technical options to clients.

Responsabilidades

• Build and calibrate 1D and 2D hydraulic models.
• Assess CSO activity and operation to meet targets.
• Evaluate foul water flooding and 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.

Conocimientos

Methodical problem solving

Initiative

Verbal communication

Written communication

Educación

Geography

Hydrology and Water Management

Water and Environmental Engineering

Environmental Science

Civil Engineering

Mathematics

Herramientas

GIS

Descripción del empleo

Job Description

Engineer a Better Tomorrow – For People, Planet, and Progress

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

Explore More

Discover how we’re transforming water networks: Wastewater networks - Mott MacDonald

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

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.

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.

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.

AI Usage

At Mott MacDonald, we see the value AI can bring, but we take a people‑first approach to hiring. While AI tools can help candidates prepare and build confidence, every application and hiring decision is reviewed by our recruitment and hiring teams. We encourage the responsible use of AI while ensuring we get to know the real person behind the application.

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 [e-mail] 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. It doesn’t stop there. 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.

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

We offer some fantastic benefits including:

Financial wellbeing

• Biannual salary reviews: We believe hard work should be recognised and rewarded. To support your development and progression, you'll be eligible for salary reviews twice a year during your first three years with us, subject to successfully completing your probation period.
• We match employee pension contributions 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.
• Our income protection scheme provides a financial benefit, as well as absence and return to work support due to long‑term illness or injury.
• Flexible benefits, including increased life assurance cover, critical illness insurance, payroll saving and will writing.
• As an independently owned business we share the financial success of the business with all our colleagues in various ways including annual bonus schemes.

Employee Ownership

• Our employee ownership model means no external investors, just us, creating a culture of shared success.
• Our employees have a stake and a voice in our business, giving them a direct connection to our success through our personal and group performance bonuses.
• As your career grows, so does your stake, recognising your long‑term impact and contribution.
• Your voice matters, with the opportunity to connect directly with senior leadership through formal channels to help shape our future.
• For our senior roles you will have a direct pathway towards ownership from day one.

Health and wellbeing

• Private medical insurance for all UK colleagues.
• Health cash plan to support you with every day health costs and treatments.
• Access to Peppy, providing free support from menopause experts for all UK colleagues.
• A variety of wellbeing support is available through our comprehensive wellbeing program, including access for you and your family.
• Ability to flex your salary to opt into a wide range of health benefits, many of which can be extended to your family too.

Lifestyle

• 33 days holiday each year, inclusive of public holidays and dependent on level, with the ability to buy or sell leave through our flexible benefits programme.
• 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

• Enhanced family leave policies, including 26 weeks paid maternity and adoption leave, and two weeks paid paternity/partner leave.
• Our 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.
• We offer policies and dedicated support to help military families balance service life with career and wellbeing.

Learning and development

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

Networks, communities, and social outcomes

• Join a wide range of groups including our Advanced Employee Networks which support our LGBTQ+, gender, race and ethnicity, disability, and parents/carers communities.
• We are proud signatories of the Armed Forces Covenant and Gold Award holders in the MOD Employer Recognition Scheme, supported by our dedicated internal Armed Forces Network.
• Make a difference within our communities through our social outcomes.