Senior / Principal Wastewater Modeller

Advance Training and Recruitment Services; Greater London; On-site; GBP 85,000 - 120,000; Full time

Job summary

Advance TRS, a leading UK consultancy, seeks Senior/Principal Wastewater Modellers to lead hydraulic modelling across a diverse project portfolio. You will develop, validate and review models, support design teams and mentor junior colleagues in a collaborative environment.

You will engage with water company clients, manage deliverables and contribute to bids, driving robust solutions for flooding, CSO reduction and network resilience.

Qualifications

• Degree or equivalent in Civil/Environmental Engineering, Water Resources Management or related.
• Typically 6-12+ years’ experience in wastewater hydraulic modelling.
• Advanced knowledge of hydraulic modelling in wastewater contexts.
• Proficiency in model build, verification, and QA.
• Understanding regulatory requirements for wastewater networks.
• Experience coordinating projects and stakeholders.
• Strong technical report-writing, presentations and communication skills.
• GIS and spreadsheet data analysis skills.
• HADES experience is advantageous; coding/scripting desirable.
• Chartered membership desirable, especially for Principal level.

Responsibilities

• Develop, build, verify and review wastewater models including sewer networks.
• Specify survey requirements and ensure inputs/outputs meet objectives.
• Develop strategic and detailed solutions to address flooding and CSO spills.
• Provide hydraulic modelling support to designers through design stages.
• Manage project delivery including timelines, QA, resources and subcontractors.
• Mentor junior colleagues and share technical knowledge.
• Prepare technical reports, drawings, and supporting studies.
• Engage with water company clients and stakeholders to communicate findings.
• Contribute to bids with methodologies, cost estimates and programmes.

Skills

Project management

Client engagement

Mentoring junior colleagues

Technical report writing

Team collaboration

Stakeholder management

Education

Degree in Civil/Environmental Engineering or related

Chartered membership (ICE/CIWEM) desirable

Tools

InfoWorks ICM

GIS software

Excel

HADES

Coding / scripting

Job description

UK wide | Senior / Principal Level

About the Opportunity

We are working with a leading global engineering and environmental consultancy that is looking to appoint experienced Senior and Principal Wastewater Modellers to join its established Water Management team.

With a strong presence across the UK water sector, the business works in partnership with major water companies and contractors, delivering technically challenging projects focused on improving network performance, reducing flooding and addressing environmental challenges.

The team is involved in a diverse portfolio of wastewater infrastructure and non-infrastructure projects, supporting major AMP8 programmes and regulatory requirements, including WINEP.

The Role

This is an opportunity to take a leading role in the delivery of wastewater hydraulic modelling projects, working across the project lifecycle from feasibility and strategic planning through to detailed design.

You will be responsible for developing, building and verifying wastewater models, undertaking technical reviews and providing modelling expertise to support engineering solutions.

Depending on experience and grade, you will also take responsibility for project management, client engagement, technical leadership and mentoring junior colleagues.

The position offers the opportunity to work on a varied portfolio of projects, develop relationships with established water sector clients and contribute to the continued growth of the team’s modelling capabilities.

Key Responsibilities

• Develop, build, verify and technically review wastewater models, including sewer network modelling and model quality assurance.
• Specify and manage survey requirements, ensuring model inputs and outputs meet project objectives.
• Develop strategic and detailed solutions to address flooding, reduce combined sewer overflow (CSO) spills and improve network performance and resilience.
• Provide hydraulic modelling support to designers during concept, outline and detailed design stages.
• Resolve complex technical modelling challenges and contribute to the development of innovative engineering solutions.
• Prepare and review technical reports, presentations, drawings, specifications and supporting studies.
• Work closely with water company clients, contractors and other stakeholders, communicating modelling outputs, technical findings and recommendations.
• Manage project delivery, including programmes, resources, quality assurance, subcontractors and client feedback.
• Support the preparation of bids, including technical proposals, methodologies, cost estimates and programmes.
• Collaborate with colleagues across engineering and environmental disciplines to deliver coordinated project solutions.
• Support and mentor junior colleagues, sharing technical knowledge and contributing to their professional development.
• Build and maintain client relationships, identifying opportunities to develop existing accounts and support the growth of the wastewater modelling portfolio.

Qualifications & Experience

• Degree or equivalent qualification in Civil Engineering, Environmental Engineering, Water Resources Management or a related discipline.
• Typically 6-12+ years’ relevant experience in wastewater hydraulic modelling, with technical expertise appropriate to Senior or Principal level.
• Advanced knowledge of hydraulic modelling across wastewater infrastructure and non-infrastructure projects.
• Proficiency in InfoWorks ICM.
• Experience in model build, verification, technical review and quality assurance.
• Understanding of wastewater network performance, flooding, CSO spills and relevant regulatory requirements.
• Experience coordinating projects, managing stakeholders and working collaboratively with multidisciplinary teams.
• Strong technical report-writing, presentation and communication skills.
• Competent in GIS software and spreadsheet-based data analysis.
• HADES experience would be advantageous.
• Coding or scripting experience would be desirable.
• Chartered membership of a relevant professional institution, such as ICE or CIWEM, is desirable, particularly for Principal-level candidates.

The Opportunity

You’ll be joining an established team working on a diverse range of technically challenging projects across the UK water sector.

The positions offer scope to develop your technical expertise, take on greater project responsibility and contribute to the delivery of sustainable solutions that improve the performance and resilience of wastewater networks.

Whether your strengths lie in technical modelling, project delivery, client management or technical leadership, there is scope to shape the position around your experience and career aspirations.

We are an equal opportunity employer and value diversity in our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.