Summer Internship - Hydraulic Modeller - Water Utilities- Cardiff

Arup; Cardiff; On-site; GBP 7,300 - 10,000; Full time

Job summary

Arup is offering a 6–12‑week Summer Internship in Hydraulic Modelling for Water Utilities in Cardiff. You will work with a multidisciplinary team on real projects, learning practical hydraulic modelling, data analysis and reporting while contributing to river and water infrastructure solutions.

Ideal candidates are pursuing Civil/Environmental Engineering or Geography degrees (Bachelor's or Master's) with an interest in water, climate and sustainable development.

Qualifications

• Pursuing a degree in Civil/Environmental Engineering or Geography (Bachelor or Masters) as stated in the ad.
• Course or accreditation relevant to water engineering is advantageous.
• ICE/CIWEM accreditation is recognized by the employer.

Responsibilities

• Analysis and problem solving on large datasets, surveys, catchment information, hydraulic models and reports.
• Develop hydraulic models to represent urban drainage, rivers and coasts and assess flow and water quality.
• Develop engineering design solutions with calculations, sketches, workshops and technical drawings.
• Collaborate and communicate with internal and external teams, present work and review designs.
• Keep thorough records of meetings, reports and technical outputs.
• Support towards professional membership and continuous learning.

Skills

Changemakers

Innovative minds

Growth mindset

Adaptable adventurers

Education

Bachelor's in Civil/Environmental Eng or Geography

Masters or post-grad in Civil/Environmental Eng or similar water discipline

ICE/CIWEM accreditation

Job description

Summer Internship - Hydraulic Modeller - Water Utilities- Cardiff

Summer Internship – Hydraulic Modelling – Water Utilities - Cardiff

You see the world through a unique lens and that’s exactly what we need. We embrace how you see things differently – it’s essential for creating a sustainable future.
Arup is a global consultancy with advisory and technical expertise across more than 150 disciplines. We guide, plan and design the future of the built environment. Globally, each year we recruit hundreds of graduates and students who help us see things differently and solve the most complex challenges facing our clients, climate and communities.
Arup's design and engineering skills shape a full spectrum of water solutions. We see water in context. From delivering water infrastructure to advising on natural catchments, we consider commercial, economic, environmental and social implications.

Arup's global reach and keen insight into the entire water cycle, and our practical experience in contrasting climates and conditions, brings oversight to our work in water – including infrastructure design and engineering, asset management, flood mitigation, sustainable water management, water strategies and research.

All-round thinking is the product of our specialist water engineers, project managers, management consultants and environmental and water scientists working seamlessly together – and in partnership with clients.

The opportunity

On this 6–12-week Summer Internship you'll work alongside skilled professionals and from day one you will be working on real life meaningful projects - adding add value to clients, while exploring challenges with curiosity and creativity. You'll learn from others and begin creating your professional network ready for when you graduate. There will be regular learning sessions with our leadership team, opportunities for site visits to local projects and all kinds of social events that will support your learning and development. Our aim is to welcome as many students as possible back into our other programmes, be that another internship or potential graduate position. This placement is the stepping-stone to your future. Dedicated to sustainable development, Arup is a collective of designers, consultants and experts working globally. Founded to be humane and excellent, we collaborate with our clients and partners using imagination, technology, and rigour to shape a better world.

Water Utilities:

Our team vision is to restore and regenerate our rivers and catchments; we are a collective of passionate multi-disciplinary water/civil engineers, catchment hydraulic modellers (rivers and urban drainage systems) and environmental modellers/scientists. We work together to deliver a range of river health projects across the water cycle, including nature-based solutions and major infrastructure upgrades

From day one, you will be part of an integrated team. Our team of engineers, hydraulic modellers, and environmental scientists brings together diverse expertise to tackle complex challenges and create brilliant solutions. You will develop practical skills in hydraulic modelling, catchment analysis, spatial data, technical reporting and collaborative project delivery. You will be supported by experienced specialists and given opportunities to contribute ideas, present your work and build experience towards professional membership

Our work ranges from small-scale civil engineering projects to novel nature-based solutions and major infrastructure programmes of national significance. You'll be supported by a local network of technical specialists who work together to deliver meaningful, high-impact projects.

Key responsibilities will include:

• Analysis and problem solving. Assessing large datasets, gap analysis and scoping future investigation needs. This can include historic drawings, surveys, catchment information, hydraulic models, reports. You will work with a variety of Contractors to specify and manage surveys, including site visits.
• Hydraulic modelling and solution development. Develop hydraulic models which represent urban drainage systems, rivers and coasts assessing flow and water quality. You will be supported in technical delivery with a multi-disciplinary team, including bespoke modelling training, hands on job support, software and technical guidance. Contribute to solutions that improve river health, reduce flood risk and provide future infrastructure resilience. We promote a culture of learning and sharing, in a safe and supportive environment.
• Developing engineering design solutions. You will develop and appraise a range of option types through calculations and design, sketches, workshops, technical drawings, developing bills of quantities working in and with multi-disciplinary teams. We promote a culture of learning and sharing, in a safe and supportive environment.
• Collaboration. Communication and collaboration internally and externally. Presenting and sharing your work, participating in reviewing and challenging our own designs. We want to hear everyone’s views, in an open and collaborative environment.
• Safety, quality and excellence. You will be expected to keep good records of meetings, reports, workshops and technical reviews, data management, design decisions and technical outputs
• Continuous learning and curiosity. We will provide an environment for you to learn and be curious about new ideas, challenging each other in a supportive environment. You will be supported in working towards professional membership.

Is this role right for you?

We are looking for people who have an enthusiasm for a career in Water, underpinned by a knowledge and understanding of our sector.

We are seeking candidates working towards a Bachelors Degree in Civil and/or Environmental Engineering or Geography OR; Masters or post-graduate Degree in Civil or Environmental Engineering, or a similar Water related discipline, or a course accredited by ICE, CIWEM or equivalent.

Alongside your degree, we look for the following core attributes;

• Changemakers: A passion for sustainable development and creating a better world is key.
• Innovative minds: We’re looking for critical thinkers who embrace new ideas and challenge the status quo.
• Growth seekers: You have a growth mindset, always eager to learn and explore new ways of working.
• Adaptable adventurers: You’re ready to take on any challenge that comes your way.

Advert Closing Date: 12 November 2026

Please note, in the event of high applicant volume, this role may be closed ahead of the advertised closing date.

What we offer you

At Arup, we care about each member’s success, so we can grow together.
Guided by our values, we provide an attractive total reward package that recognises the contribution of each of our members to our shared success. As well as competitive, fair and equitable pay, we offer a career in which all of our members can belong, grow and thrive – through benefits that support health and wellbeing, a wide range of learning opportunities and many possibilities to have an impact through the work they do.
We are owned in trust on behalf of our members, giving us the freedom, with personal responsibility, to set our own direction and choose work that aligns with our purpose and adds to Arup’s legacy. Our members collaborate on ambitious projects to deliver remarkable outcomes for our clients and communities. Profit Share is a key part of our reward, enabling permanent members to share in the results of our collective efforts.
We take an approach to flexible working that supports the diversity and wellbeing of our graduates.

Different people, shared values

Arup is an equal opportunity employer that actively promotes and nurtures a diverse and inclusive workforce. We welcome applications from individuals of all backgrounds, regardless of age (within legal limits), gender identity or expression, marital status, disability, neurotype or mental health, race or ethnicity, faith or belief, sexual orientation, socioeconomic background, and whether you’re pregnant or on family leave. We are an open environment that embraces diverse experiences, perspectives, and ideas - this drives our excellence.
Guided by our values and alignment with the UN Sustainable Development Goals, we create and contribute to equitable spaces and systems, while cultivating a sense of belonging for all. Our internal employee networks support our inclusive culture: from race, ethnicity and cross-cultural working to gender equity and LGBTQ+ and disability inclusion – we aim to create a space for you to express yourself and make a positive difference. Discover more about life at Arup at www.arup.com/careers/your-life-at-arup.

We are committed to making our recruitment process and workplaces accessible to all candidates. Please contact [e-mail] to let us know if you need any assistance or reasonable adjustments throughout your application or interview process, and/or to perform the essential functions of the role. We will do everything we can to support you.

As a Disability Confident Level 2 Employer in the UK, we will strive for one third of all our interview places to be allocated to candidates who have disclosed they are disability confident and best meet the requirements of the role.

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