Wastewater Hydraulic Modeller – Modeller to Associate

AtkinsRéalis; Leeds; On-site; GBP 42,000 - 65,000; Full time

Job summary

AtkinsRéalis is recruiting a Wastewater Hydraulic Modeller for the UK Water business. You will develop InfoWorks ICM models to diagnose wastewater network issues, analyse datasets, and support asset investment decisions for clients including water companies and authorities.

The role requires strong experience in urban drainage modelling, GIS (ArcGIS/MapInfo), and delivering technical reports. Mentoring and tender support may be involved, with opportunities for travel and site visits.

Qualifications

• Proven experience in urban drainage modelling using InfoWorks ICM, ideally in UK water sector.
• Proficiency with GIS platforms (ArcGIS or MapInfo).
• Desirable degrees or chartership (CIWEM/ICE).
• Experience supervising staff and delivering robust client reports.

Responsibilities

• Develop InfoWorks ICM models to investigate wastewater network issues and plan solutions.
• Analyse datasets to support modelling, option development and decision-making.
• Provide guidance to clients to aid asset investment decisions.
• Contribute to preparation of reports and project deliverables.
• Prepare health and safety risk assessments.
• Assist with tender responses and fee estimates at higher grades.
• Supervise and mentor staff to support their development.
• Contribute to technical innovation within the team.

Skills

InfoWorks ICM

ArcGIS/MapInfo

Urban drainage modelling

Mentoring/people development

Technical reporting

Education

BSc/MSc/BEng/MEng in Engineering or related field

Tools

InfoWorks ICM

ArcGIS

MapInfo

Job description

Overview

Work with AtkinsRéalis to make the world’s outlook brighter and healthier. The company prides itself on the diversity of thought, expertise, and knowledge of its people. Everyone’s voice is valued and treated equally.

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. Clients span UK and international water companies, local authorities, highway/rail authorities and developers.

It is an exciting time to be working for our UK Water business amid unprecedented investment in the industry. We are looking to recruit a Wastewater Hydraulic Modeller across our UK offices to support client requirements. All listed UK offices are potential home office locations.

The role will involve working with engineers, modellers, geographers, GIS specialists and technicians to deliver solutions to Water Companies, Local Authorities, developers and, where applicable, international projects.

Your Role

• Develop InfoWorks ICM computer models to investigate wastewater network issues, identify investment needs, and plan solutions to address these requirements.
• Analyse datasets to support modelling, option development, and decision‑making.
• Support the development of engineering solutions and provide expert guidance to clients to help them make informed asset investment decisions.
• Contribute to the preparation of reports and other project deliverables.
• Prepare and adhere to health and safety risk assessments.
• Support the preparation of tender responses and fee estimates (at higher grades).
• Supervise, mentor, and develop staff, providing guidance to support their professional development (at higher grades).
• Contribute to technical innovation within the team.

About You

You will bring proven experience in urban drainage modelling using InfoWorks ICM, ideally gained within the UK regulated water industry. We welcome applicants at all experience levels—appointments will be made based on merit and aligned to individual expertise.

You will be proficient in GIS platforms such as ArcGIS or MapInfo. A background in civil engineering or experience working with engineered solutions is desirable.

You will play a key role in delivering ICM modelling and solution‑development expertise to support clients’ environmental improvement projects, particularly relating to storm overflows. The role may involve site visits and regular liaison with clients, contractors, stakeholders, and other professional bodies. Typical outputs will include concise technical reports summarising methodologies, approaches taken, and key findings from your investigations.

Desirable Requirements

We welcome applicants with experience in model build and verification, hydraulic and water quality analysis, catchment planning, Drainage and Wastewater Management Planning (DWMP), solution development, and technical leadership.

Additional Desirable Attributes Include

• A proven track record of coordinating and delivering technically robust projects.
• Strong peer‑review skills, with the ability to check the work of others, ensure quality assurance, and drive continuous improvement in client deliverables.
• Experience implementing industry‑leading approaches and developing innovative technical solutions.
• Experience managing or technically supervising a team of wastewater modellers.
• Experience overseeing report writing, as well as reviewing and validating technical outputs.

Desirable Qualifications

• BSc/MSc/BEng/MEng in Engineering, Hydrology, Geography/Geospatial sciences, Environmental Sciences, or closely related discipline.
• Professional qualifications, such as CIWEM or ICE Chartership, would be advantageous for senior roles.

About AtkinsRéalis

AtkinsRéalis is a world‑class engineering services and nuclear organisation. We connect people, data and technology to transform the world’s infrastructure and energy systems. Together with industry partners and clients, and our global team of consultants, designers, engineers and project managers, we can change the world. We are committed to leading our clients across our various end markets to engineer a better future for our planet and its people.

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 for five years or longer. If applying to this role please do not make reference to or include in your application or CV details of any current or previously held security clearance.

Equality, Diversity and Inclusion

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. 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.