Water Resources Modeller

At
South West Water
we believe that the strongest businesses are built on solid, stable foundations - with a vision and a culture that gives them the freedom to change, improve and innovate.

We're proud to be responsible for providing reliable, efficient and high-quality drinking water and wastewater services for the beautiful South West area.

And we have huge ambitions.

Not only are we committed to reaching net-zero by 2030, but we've also partnered with Wildlife Trusts, National Parks and local partners to help ensure a better future for generations to come.

So, if you want to be part of a diverse team where opportunities flow and fresh ideas are welcomed, #JustAddWater.

The Role
In this role you will be responsible for delivering the day-to-day modelling needs of the function, including modelling needs identification, model construction, verification / calibration, model population, running of models, and production of model outputs including quality assurance, undertaking an initial interpretation of those outputs.

In addition to the day-to-day activity, you will also support delivery of a series of modelling improvement projects committed to in WRMP29, namely: Water Resource Zone model improvements; Regional model development; Rainfall runoff model development; Ground water model development.

This role will provide you with an excellent opportunity in the water resources sector and enable you to develop a good level of understanding across a range of areas.

What You'll Be Doing:

• Deliver modelling outputs and insights to the Water Resources Function, working with stakeholders to define scope and handover a quality output.
• Deliver a regime of model maintenance and assurance for those models you own to ensure models are available for timely use
• You are responsible for the time and quality delivery of modelling projects and activitiesto ensure all reports meet required timescales and quality standards.
• Undertake Quality Assurance on modelling outputs
• Support delivery of modelling-based commitments within WRMP29
• You will provide insights into modelling outputs and identify and implement industry innovation and good practice to mature the modelling service offer
• Gather stakeholder feedback, to identify and implement service improvement opportunities

What We're Looking For:

• Degree in appropriate subject such as Hydrology, Environmental Science, Water resource management, or numerate subject such as Maths, Science, Engineering
• Experience in delivering technical output in an accessible and easily understandable manner
• Driven and motivated modelling professional, with strong interest in water resource management and passionate about identifying relevant innovative practices from within and beyond the sector
• Excellent, numerical, analytical and communication skills, able to consolidate and analyse complex models and communicate these in an approach aligned to your audience. Some experience of Python programming (preferably Python, R) and network analysis would be highly beneficial
• Ideally you will have experience in modelling complex water systems using industry-standard software such as MISER, Aquator, and Pywr, with prior experience or a passion for the water sector
• Manages multiple work streams and competing priorities effectively

What's In It For You?

• This isn't just a job, this is a career; the opportunities to develop and grow your career with us are endless. Alongside ongoing training and development opportunities we offer some great benefits:
• Annual salary of between £32000 and £40000 depending on experience
• 26 days holiday allowance rising to 30 days plus bank holidays
• Hybrid working arrangements
• Professional progression routes
• Generous contributory pension scheme
• Discretionary bonus
• Share save scheme
• Subsidised healthcare benefits
• Plus, many more

Closing Date:
24th October 2025

Be yourself, we like it that way.
Together, we will build a culture of belonging, where inclusion is instinctive. Diversity is our strength and a reflection of our communities. We care, we value everyone, we celebrate uniqueness.

Our core values which are essential to our success are:
Be Rock Solid
- Build trust and be trusted. Be the one we all look to and can depend on.

Be You
- We want you to bring your best everyday. Be yourself and make your mark in your individual way.

Be the Future
- Embrace change. Drive Progress. Own the challenge.