Graduate Wastewater Modeller

We are Sweco.

We are Europe’s leading design, engineering, environment and regulatory consultancy.

We are future planners, city shapers, urban innovators, digital transformers, net zero chasers, community connectors, social enterprise rs and lifestyle improvers.

We are #Difference Makers.

And we are now taking applications for the Autumn 2027 cohort of our Early Careers Graduate Scheme.

At Sweco, we shape sustainable water solutions for communities and industries of all sizes. Our expertise covers every aspect of water and wastewater treatment and infrastructure—from initial feasibility studies through all design stages to construction and commissioning. As trusted leaders in the water sector, our specialists are dedicated to delivering safe, clean drinking water, efficient wastewater recycling, and reliable water transit systems.

We pride ourselves on developing innovative, sustainable solutions that help protect and enhance the environment for future generations.

As a Graduate Modeller, you will:

• Build and utilise hydraulic models of rivers, drainage systems and wastewater networks using industry standard software (Infoworks ICM, TUFLOW or similar)
• Analyse the performance of wastewater and drainage networks under current and future conditions, including the effects of climate change and population growth.
• Identify and assess sustainable options to improve the capacity, operation and resilience of wastewater networks
• Identify the causes of flooding and develop options to reduce flood risk
• Use GIS to analyse data and map flood extents
• Contribute to planning applications, flood risk assessments and drainage strategies.
• Prepare technical reports, drawings and presentations

Our unique, personalised programme is designed for passionate, forward-thinking graduates who want to change the world around them, who will thrive in a dynamic team environment, and who are hungry to collaborate not only with fellow graduates, but also with mentors and leaders across the business.

We want to hear from you if you…

• Have a degree relevant to the role you’re applying for.
• Have less than 12 months of relevant work experience (excluding placements).
• Are confident using Microsoft Office and other relevant digital tools.
• Are driven, proactive, and solution-oriented.
• Can work in the UK without restrictions either now or in the future. This is a permanent role, and we’re looking for candidates who can grow their careers with Sweco without a time limit.

Our Graduate Scheme offers a two-year blended learning experience, with a tailored programme delivered virtually and face-to-face. You’ll have the chance to network and grow with the 2027 cohort. Personal growth will be supported by our Early Careers team, mentors and subject matter experts from across the business.

Structured masterclasses focus on Internal Insight, Skills Development, and Subject Matter Expertise, helping fast-track your development as you pursue professional accreditation. The programme builds your confidence early in your career and gives you a platform for genuine impact within Sweco.

You’ll receive a permanent position with an industry-standard salary and benefits package, including 25 days holiday, a great pension and life assurance.

Read what our previous graduates have to say about their experience on the careers section of our website.

Please note, we will hold an assessment centre for this position in January / February 2027.

All applicants will be contacted regardless of the outcome. We provide feedback to all attendees of interviews or assessment…