Principal/ Associate Hydraulic Modeller
- Water
- Bristol, Cardiff
Overview
Work with AtkinsRéalis to make the world’s outlook brighter and healthier.
You might know us for the great work we do across our wide variety of projects. We're proud to say it's thanks to our people's diversity of thought, expertise, and knowledge. And when you join us, you'll be a part of this genuinely collaborative environment, where everyone's voice is valued and treated equally.
We're passionate about what we do, and we have a thriving team culture, simply put, this a great place to be. So, when it comes to your life outside of work, ask us about our flexible and remote working policies designed to help you get the most out of life.
Our collaborative and multi-disciplinary team is one of the largest in the UK, providing water and wastewater infrastructure services alongside drainage design, SuDS and surface water management. Our wide variety of clients span across the UK and internationally and include water companies, local authorities, highways / rail authorities, and developers.
It’s an exciting time to be working for our UK Water business with unprecedented investment in the water industry. Due to continued framework successes, we seek to recruit a Principal / Associate Hydraulic Modeller to join our Wastewater Team in Bristol/ Cardiff to lead one of our hydraulic modelling frameworks, with a leading UK Water Company.
We aren't just engineers, environmental professionals, or consultants. We're pioneers, constantly innovating and pushing boundaries to tackle some of the world's most pressing challenges – especially when it comes to water. From enhancing our beautiful rivers and urban landscapes to building sustainable cities in the harshest environments – our Networks & Drainage Solutions (N&DS) team is at the forefront.
Over the next 10 years, we plan to expand the practice rapidly to meet our clients' objectives. We're developing enhanced training courses to accelerate our staff resource capability. It means great futures for both new and experienced colleagues.
The opportunities in our practice to grow as an individual are immense. You'll receive mentorship from the outstanding leaders we have within the team.
From day one your personal development plan puts you in the driving seat of your career and you’ll be supported to go as far as you want to go.
Your role
- Leading Storm Overflows Discharge Reduction Plan, flood alleviation and environmental solution development projects.
- Leading model build, model maintenance, and verification projects.
- Leading the development and delivery of wastewater catchment strategies and solutions.
- Responsible for the quality of outputs and compliance with standards & specifications.
- Driving continuous improvement in project delivery.
- Ability to manage and/or support project managers to manage, projects and programmes of works.
- Support in the development of tender responses and fee estimates.
- Supervising and developing staff and providing guidance to support their professional development.
- Contributing towards technical innovation and leading improvement workgroups.
About you
- Understanding of UK Water Industry and regulatory issues.
- Proven track record in coordinating and delivering technically excellent projects.
- Expertise using InfoWorks ICM and ICM Exchange.
- Expertise in hydraulic modelling, catchment planning and solution development.
- Ability to review work of others to provide quality assurance and drive continuous improvement in work delivered to the client.
- Excellent collaboration and communication skills.
- Expertise in MS 365 applications, and knowledge in areas such as PowerBI and SharePoint.
- Experience working with software such as FME, Optimatics, Ruby (or similar) would be advantageous.
- Relevant degree or vocational qualification.
- Chartered with a relevant professional institution (i.e. ICE or CIWEM) would be advantageous.
Reward & benefits
Explore the rewards and benefits that help you thrive – at every stage of your life and your career. Enjoy competitive salaries, employee rewards and a brilliant range of benefits you can tailor to suit your own health, wellbeing, financial and lifestyle choices. Make the most of a myriad of opportunities for training and professional development to grow your skills and expertise. And combine our hybrid working culture and flexible holiday allowances to balance a great job and fulfilling personal life.
About AtkinsRéalis
We're AtkinsRéalis, a world-class engineering services and nuclear organization. We connect people, data and technology to transform the world's infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project managers, we can change the world. We're committed to leading our clients across our various end markets to engineer a better future for our planet and its people.
Additional information
Security clearance
This role may require security clearance and offers of employment will be dependent on obtaining the relevant level of clearance. If this is necessary, it will be discussed with you at interview. The vetting process is delivered by United Kingdom Security Vetting (UKSV) and may require candidates to provide proof of residency in the UK of 5 years or longer. If applying to this role please do not make reference to (in conversation) or include in your application or CV, details of any current or previously held security clearance.
We are committed to creating a culture where everyone feels that they belong - a place where we can all be ourselves, thrive and develop to be the best we can be. So, we offer a range of family friendly, inclusive employment policies, flexible working arrangements and employee resource groups to support all employees. As an Equal Opportunities Employer, we value applications from all backgrounds, cultures and ability.
#LI-INFRASTRUCTURE | #LI-UK | #LI-ATKINS#APS#APSwaterjobs
Design your future! Sign up for job alerts straight to your inbox so you don't miss your next opportunity. Subscribe to jobs like this!
Great news! We will let you know when a new job like this has been added!
Preview
EuropeContent type
BlogsPublish date
11/11/2025
Summary
Hi, I'm Ryley, a Mechanical Engineer at AtkinsRéalis. I've worked in the nuclear industry, focusing on decommissioning, for three and a half years after completing an MEng in Mechanical Engineeri
Meeting your needs
We offer a fantastic range of benefits to choose from, which you can tailor to suit your own health, wellbeing, financial and lifestyle choices.
Click here to see our full list of benefits
Preview
EuropeContent type
BlogsPublish date
11/11/2025
Summary
Hi, I'm Ryley, a Mechanical Engineer at AtkinsRéalis. I've worked in the nuclear industry, focusing on decommissioning, for three and a half years after completing an MEng in Mechanical Engineeri
Design your future! Sign up for job alerts straight to your inbox so you don't miss your next opportunity. Subscribe to jobs like this!
Great news! We will let you know when a new job like this has been added!
Meeting your needs
We offer a fantastic range of benefits to choose from, which you can tailor to suit your own health, wellbeing, financial and lifestyle choices.
Click here to see our full list of benefitsRelated job roles
Salary
Location
Montréal
Job Type
Full Time
Career Area
Civil engineering
Market
Cities & development
Transportation
Water
Category
Permanent
Location
Laval
Montréal
Québec
Description
AperçuNouveaux gradué(e)s en technique du génie civil (Québec) Lancez votre carrière avec notre programme Odyssée ! Conçu exclusivement pour les jeunes diplômés, Odyssée est plus qu'un simple emploi
Reference
R-139346
Expiry Date
01/01/0001
Salary
Location
Montréal
Job Type
Full Time
Career Area
Civil engineering
Market
Cities & development
Transportation
Water
Category
Permanent
Location
Laval
Montréal
Québec
Rouyn-Noranda
Description
AperçuNouveaux gradué(e)s en génie civil (Québec) Lancez votre carrière avec notre programme Odyssée ! Conçu exclusivement pour les jeunes diplômés, Odyssée est plus qu'un simple emploi : c'est un tr
Reference
R-139345
Expiry Date
01/01/0001
Salary
Location
Henderson
Job Type
Full Time
Career Area
Civil engineering
Market
Water
Category
Permanent
Location
Henderson
Description
OverviewAtkinsRéalis is seeking a Water Infrastructure Engineer to join our Water Infrastructure Team. This is an entry-level position and is based out of Henderson, NV. Your roleAssists in the plann
Reference
R-140716
Expiry Date
01/01/0001
Salary
Location
Henderson
Job Type
Part Time
Career Area
Civil engineering
Market
Water
Category
Contractor / Temporary
Location
Henderson
Description
OverviewAtkinsRéalis is seeking a Water Infrastructure Engineering Intern – Summer 2026 to join our Henderson, NV office.Your roleProvide administrative and operations support.Responsible for the comp
Reference
R-140715
Expiry Date
01/01/0001
Salary
Location
Dallas
Job Type
Full Time
Career Area
Civil engineering
Market
Water
Category
Permanent
Location
Dallas
Description
OverviewAtkinsRéalis is seeking a Water Resources Engineer to join our Water Resources (Water Quality) Team. This is an entry-level position and is based out of Dallas, TX. Your roleGenerally, applie
Reference
R-137133
Expiry Date
01/01/0001
Salary
Location
Dallas
Job Type
Part Time
Career Area
Civil engineering
Market
Water
Category
Contractor / Temporary
Location
Dallas
Description
OverviewAtkinsRéalis is seeking a Water Resources Civil Engineering Intern – Summer 2026 to join our Dallas, TX office.Your roleLearn from professional engineers standard engineering techniques, proce
Reference
R-137132
Expiry Date
01/01/0001
Salary
Location
Tampa
Job Type
Part Time
Career Area
Physical hydrogeology & hydrology
Market
Water
Category
Contractor / Temporary
Location
Tampa
Description
OverviewAtkinsRéalis is seeking a Water Resources Engineering Intern – Summer 2026 our Tampa, FL office. Your roleProvide administrative and operations support. Responsible for the compilation of da
Reference
R-138010
Expiry Date
01/01/0001
Salary
Location
Miami
Job Type
Part Time
Career Area
Physical hydrogeology & hydrology
Market
Water
Category
Contractor / Temporary
Location
Miami
Description
OverviewAtkinsRéalis is seeking a Water Resources Engineering Intern – Spring 2026 our Miami, FL office. Your roleProvide administrative and operations support. Responsible for the compilation of d
Reference
R-138009
Expiry Date
01/01/0001
Salary
Location
Dublin
Job Type
Full Time
Career Area
Civil engineering
Market
Water
Category
Permanent
Location
Dublin
Description
OverviewShape a sustainable tomorrow.Do you want to join a team that asks questions and dares to see things differently?We are AtkinsRéalis, a world-class engineering services and nuclear organization
Reference
R-138659
Expiry Date
01/01/0001
Author
Bindu IdicullaAuthor
Bindu IdicullaSalary
Location
Tsim Sha Tsui
Job Type
Full Time
Career Area
Engineering (Other)
Market
Cities & development
Clean power
Transportation
Water
Category
Permanent
Location
Tsim Sha Tsui
Description
OverviewThis is a senior leadership position based in Hong Kong, focused on leading and expanding the Power & Renewables team across Asia-Pacific (APAC). The role involves full lifecycle project manag
Reference
R-124863
Expiry Date
01/01/0001
Related articles
Preview
USAContent type
BlogsPublish date
09/11/2025
Summary
The energy transition is no longer a distant ambition; it's a practical engineering challenge that requires smart, resilient solutions today. Across North America, AtkinsRéalis is helping design a
Preview
Middle EastContent type
BlogsPublish date
08/01/2025
Summary
The United Arab Emirates is moving decisively from an oil-fueled economy toward that of a knowledge-based economy, with ambitious plans between now and 2030. Central to this transformation is a
Preview
AsiaContent type
BlogsPublish date
08/01/2025
Summary
Water is the single most important element that both humans and the ecosystem rely on. It sustains all life and is linked to almost everything in the world. Water engineering is therefore v
Preview
AsiaContent type
BlogsPublish date
08/01/2025
Summary
In Asia, mechanical engineering jobs are in high demand. With the construction sector in Hong Kong alone set to grow by 2% from 2025 to 2028, the region is experiencing a steady expansion. As Asia
Preview
EuropeContent type
BlogsPublish date
05/21/2025
Summary
My name is Vera, and at AtkinsRéalis, I'm a Technical Director, an AtkinsRéalis Fellow, and the Global Technical Authority for Water Quality. The focus of my work is to study sources of pollution a
Preview
EuropeContent type
BlogsPublish date
05/09/2025
Summary
The UK's water supply faces growing challenges—from the impacts of climate change and unpredictable rainfall to a rising population and increasing water scarcity. These pressures demand innovati
Preview
GeneralContent type
BlogsPublish date
05/09/2025
Summary
Environmental sustainability is no longer a niche priority, it’s becoming the heartbeat of progress across every industry. As the world faces urgent climate challenges, businesses everywhere are
Preview
Middle EastContent type
BlogsPublish date
05/07/2025
Summary
The UAE’s transportation systems are developing at a rapid rate. This is transforming how people move. With rail projects like the Dubai Metro being the preferred transport system for 37% of people
Preview
GeneralContent type
BlogsPublish date
04/10/2025
Summary
Engineering is a massive contributor to the global economy, which means there’s always a huge demand for different jobs in the sector. The engineering market is expected to grow to USD 3.5 trillion
Preview
IndiaContent type
BlogsPublish date
03/18/2025
Summary
Imagine a career where your engineering expertise doesn’t just contribute to projects—it helps shape the world’s future. At AtkinsRéalis India, we offer you the chance to be part of groundbreaking
Talent community
Would you like to know more? Not ready to apply? Join our talent community to stay connected and engaged with us at AtkinsRéalis.
Find out more
