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Intermediate ​/ Senior ​/ Principal Wastewater Network Modeller

Job in East Sussex, Lewes District, East Sussex, RH15 0FH, England, UK
Listing for: Advance TRS
Full Time, Part Time position
Listed on 2026-08-21
Job specializations:
  • Engineering
    Water Engineer, Systems Engineer, Environmental Engineer
Salary/Wage Range or Industry Benchmark: 75000 GBP Yearly GBP 75000.00 YEAR
Job Description & How to Apply Below
Location: East Sussex

Location:

South East / London preferred;
Anglian region also considered
Working:
Hybrid - typically 2-3 days per week in the office or fully remote considered
Salary: £40,000-£75,000 depending on experience, capability and chartership status
Employment:
Permanent, Full Time

The Opportunity

Advance TRS is representing a specialist water consultancy that is looking to appoint Intermediate, Senior and Principal Wastewater Network Modellers to strengthen its UK modelling team.

This is an opportunity to join a technically focused business working on a range of challenging wastewater modelling projects, with a strong emphasis on technical quality, innovation and developing more efficient approaches to hydraulic modelling.

The successful candidates will work alongside experienced modelling specialists and have the opportunity to contribute to a variety of wastewater projects, while benefiting from access to wider international expertise and best practice.

The business is particularly interested in individuals with strong hands-on Info Works ICM experience who are looking to develop their technical expertise and progress their careers within a specialist modelling environment.

The Role

Responsibilities will vary depending on experience and seniority, but may include:

Building, calibrating, validating and maintaining wastewater network models using Info Works ICM.
Undertaking model verification and historical validation.
Using modelling outputs to understand network performance and identify risks.
Supporting root cause analysis and solution development.
Developing and assessing practical, cost-effective and buildable solutions for wastewater networks.
Providing technical input into project delivery and supporting multidisciplinary teams.
Reviewing and quality-checking modelling outputs, appropriate to level of experience.
Working with clients and project stakeholders to understand requirements and communicate modelling outcomes.
Supporting and, at more senior levels, leading technical discussions with clients and project teams.
Providing guidance, coaching and mentoring to less experienced colleagues where appropriate.
Contributing to the development and improvement of modelling processes, specifications and best practice.
Supporting innovation and the adoption of new technologies, automation and digital approaches within wastewater modelling.
Managing technical and project delivery risks at the appropriate level of responsibility.
Developing TOTEX-focused solutions that consider cost, risk, performance and operational requirements.

Technical Focus

The team is involved in a broad range of wastewater network modelling activities, with opportunities to develop experience across areas including:

Wastewater network model build and verification.
Hydraulic modelling and root cause analysis.
Solution development and optioneering.
Network performance and capacity assessments.
Water quality modelling.
2D modelling.
Real-time modelling.
Model auditing and assurance.
Digital transformation and modelling automation.
Development of innovative modelling tools and processes.

The successful candidates will have the opportunity to develop specialist modelling expertise rather than simply undertaking routine modelling work.

About the Candidate

Intermediate Wastewater Modeller

The client would consider candidates with approximately 3-5 years' relevant wastewater network modelling experience, depending on their technical capability and experience.

Candidates should have:

Hands-on experience in wastewater network modelling using Info Works ICM.

Experience of model building and verification.
Exposure to calibration, validation, root cause analysis and/or solution development.
A good understanding of hydraulic modelling principles.
Strong analytical and data interrogation skills.
Good written and verbal communication skills.
A relevant degree or equivalent professional experience.

The client is particularly interested in candidates who are keen to continue developing their technical expertise and progress towards more senior modelling responsibilities.

Indicative salary: £40,000-£47,000.

Senior Wastewater Network Modeller

The business is ideally looking for candidates…
Position Requirements
10+ Years work experience
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