Senior / Principal Hydraulic Modeller - Waste Water

Access Talent Group; Cardiff; On-site; GBP 50,000 - 70,000; Full time

Job summary

A leading recruitment agency is looking for a Senior / Principal Hydraulic Modeller in Cardiff, UK. The role involves leading wastewater modelling projects, mentoring junior team members, and collaborating on international water projects. Candidates should have a strong background in hydraulic modelling, relevant qualifications, and a track record in the UK water industry. This position offers opportunities for professional growth and the chance to contribute to sustainable water solutions.

Qualifications

• Strong experience with hydraulic modelling tools and practices.
• Track record of delivering wastewater projects in the UK water industry.
• Experience managing and mentoring junior team members.

Responsibilities

• Lead Wastewater Network Modelling Projects focused on improving water quality.
• Mentor and support junior modellers and global teams.
• Develop sustainable solutions for wastewater management.

Skills

Hydraulic Modelling

Client Management

Digital Innovation

Mentorship

Education

Degree in Engineering, Geography, Environmental Science

Chartered status

Tools

InfoWorks ICM

Job description

Overview

Senior / Principal Hydraulic Modeller - Waste Water

BST: 8:00 - 18:00 (Mon/Thu) 8:00 - 16:00 (Fri). Access Talent Group are recruiting for a Senior or Principal Lead Hydraulic Modeller within the Waste Water sector based in Cardiff, Bristol or Birmingham.

This role involves leading catchment-scale wastewater modelling and design projects, including investments to improve rivers and coastal waters through WINEP/NEP and storm overflow enhancements. You will play a key leadership role in a global modelling centre of excellence, mentoring junior team members while contributing to the development of overseas teams.

With a strong pipeline of AMP8 projects, this role covers the entire design process from strategic planning and feasibility to detailed design and construction support, with a focus on sustainability and nature-based solutions for long-term community and environmental benefits.

Responsibilities

• Lead Wastewater Network Modelling Projects – Manage projects using 1D hydraulic models for risk analysis and solutions to improve water quality and reduce flood risk, with a particular focus on storm overflows and wastewater treatment works.
• Mentor and Develop Teams – Support and guide junior modellers while contributing to the development of global modelling teams.
• Deliver Holistic Catchment Solutions – Work with multidisciplinary teams to develop sustainable, nature-based solutions for wastewater management.
• Develop Digital Tools and Innovations – Enhance, optimise, and automate modelling processes using digital tools.
• Client Engagement and Relationship Building – Collaborate with client teams across Operations, Asset Management, Environmental, and Modelling disciplines, fostering long-term partnerships.
• Contribute to Research and Industry Innovation – Lead and support research initiatives to drive technical excellence and develop industry guidance.
• International Project Opportunities – Contribute to global water projects across regions such as Manila, India, Australia, and North & South America.

Key Skills & Experience

• Expertise in Hydraulic Modelling – Strong experience with InfoWorks ICM, ideally including Level 1 UPM water quality modelling.
• Relevant Degree & Professional Accreditation – A degree (or equivalent) in Engineering, Geography, Environmental Science, or a related discipline, and Chartered status with an appropriate institution.
• Proven UK Water Industry Experience – A track record of successfully delivering wastewater projects in collaboration with private/public sector clients and regulators.
• Strong Client Management & Communication Skills – Ability to engage with stakeholders, present results, and work collaboratively to develop effective solutions.
• Digital Innovation – Interest in using digital tools to enhance modelling processes and improve efficiency.
• Leadership & Mentorship – Experience managing or mentoring teams, supporting their professional development.

How to Apply

If you are an experienced Senior or established Principal Waste Water Hydraulic Modeller and are interested in work winning and taking ownership of projects, please contact Cameron Green at 02380981322 or email [e-mail]