Wastewater modeller

## Wastewater modellerApplylocations: FALMERtime type: Full timeposted on: Posted Yesterdaytime left to apply: End Date: July 10, 2026 (27 days left to apply)job requisition id: JR8128**Closing Date**2026-07-10**Job Title: Wastewater Modeller****Location:** Falmer – Hybrid working **Contract Type:** Permanent **Hours:** 37 hours per week **Salary:** Up to £50,000 depending on skills & experience**About the role:**Join us as a Wastewater Modeller and help shape the future of our wastewater networks.You will sit within our Modelling team and play a vital role in understanding, predicting, and improving the performance of our wastewater systems. Your work will directly support planning, investment, and environmental protection across the region.This is an excellent opportunity for someone with 3–5 years of modelling experience who wants to deepen their technical capability, and gain hands on project exposure.**What you will be responsible for:*** Build, develop, and maintain hydraulic models of wastewater networks and treatment systems.* Analyse operational, GIS, and asset data to understand network behaviour and highlight risks.* Support planning, design, and regulatory programmes through evidence based modelling outputs.* Work with engineering, operations, and environmental teams to address flooding, pollution, infiltration, capacity constraints, and resilience issues.* Translate modelling outputs into clear, practical recommendations for technical and nontechnical audiences.* Contribute to continuous improvement in modelling processes, tools, and data quality.**Additional requirements specific to the role:*** Occasional site visits for surveys, network investigations, or stakeholder meetings.* Hybrid working with some travel to team locations as required.**What you’ll bring to the role:*****Essential**** 3–5 years of experience in wastewater modelling* Experience using hydraulic modelling tools such as InfoWorks ICM* Strong analytical and problem-solving skills with attention to detail* Ability to interpret complex data and turn insights into actionable recommendations* A collaborative mindset and willingness to work across multidisciplinary teams* A relevant technical qualification (engineering, environmental science, geography, maths or similar)* Either recently chartered or working toward professional chartership**Desirable*** Experience working with operational or regulatory wastewater programmes* Knowledge of wastewater network performance, risk assessment, or asset planning* Experience in the use of AI optimisation tools* Experience in writing scripts/codes to help with automation of parts of the modelling process**Progression opportunities**This role offers access to training, modelling tool development, internal mentoring, and future progression into Senior Modeller, Network Specialist, or broader Asset/Planning roles.**About Southern Water**Southern Water is at the forefront of transforming Britain’s water industry, investing significantly to enhance resilience, sustainability, and service excellence. With £7.8bn planned investment for 2025–30, this is an unparalleled opportunity to join a business committed to delivering a generational shift in the way water services are managed.You will join at a time of significant change, working alongside a highly skilled leadership team with a clear vision for the future. We offer an environment where professionals can make a meaningful impact, influence strategic decisions, and drive long-term value creation.**Our Commitment to Inclusion**We understand that great talent comes in many forms. If this role excites you and you share our commitment to delivering sustainable solutions for our communities, please apply—even if your experience doesn’t perfectly match every requirement. We’ll support your growth and development.If this role isn’t quite what you’re looking for but you’d like to be contacted about opportunities at Southern Water, you can register your details here: **Introduce Yourself:** https://wd3.myworkdaysite.com/en-US/recruiting/southernwater/SouthernWater/introduceYourself**Our Commitment to Diversity**We welcome applicants from all backgrounds, identities, and experiences. We do not discriminate based on race, ethnicity, gender, sexual orientation, age, disability, religion, or any other protected characteristic. If you need reasonable adjustments during the recruitment process, please let us know.**Additional information:**In line with Southern Water’s security requirements, successful candidates will be required to provide evidence of their identity, eligibility to work in the UK, criminal record check (DBS) and verification of their employment and/or education history for the past three years.Appointment to this role is subject to the successful completion of all pre‐employment checks, including security vetting.Please note that if a candidate does not meet the required security standards or fails to pass the vetting process, Southern Water reserves the right to withdraw the offer of employment. Some positions may also require higher levels of security vetting, which may involve providing additional documentation.### Similar Jobs (1)#### Senior Wastewater Network Modellerlocations: FALMERtime type: Full timeposted on: Posted Yesterdaytime left to apply: End Date: July 10, 2026 (27 days left to apply)### Interested in the role?* We reserve the right to close this advertisement early if we receive a high volume of suitable applications, so if you are interested in the position please do send your application over today to ensure consideration.* We truly appreciate every application. Please note, that due to the volume of interest, we may not be able to provide personalised feedback to all applicants.### Our Benefits* Company and performance-related bonus* Generous pension* Life assurance payment equal to four times your annual salary* Health benefits through a Cash Plan* Two paid community volunteering days a year* 28 days annual holiday* Occupational health service* Retail discount app* We offer competitive maternity leave, and flexible return to work options### Everybody Welcome* We value diversity and are committed to providing an inclusive and accessible recruitment process. If you require any reasonable adjustments to facilitate your participation in the recruitment process, please do not hesitate to let us know.### Need flexibility in your work?* Does this opportunity excite you but you’re not 100% sure if you meet all the requirements for the role? Or are you concerned that ‘normal’ office hours aren’t possible given your personal circumstances? Whilst we can’t accommodate every flexible working request, we’ll try to find a practical solution. So why not engage with us and find out more about this role?#J-18808-Ljbffr…