Overview

Join to apply for the Senior Principal Hydraulic Modeller role at Southern Water.

Closing Date: 30/09/2025

Location & hours

• Falmer (Brighton) / Home Hybrid Working, with occasional site visits in the South East
• Full time Monday to Friday 37 hours a week; Southern Water offers a flexible working policy

Job Title

• Senior Principal Hydraulic Modeller

Introduction

• Lead ground-breaking projects that shape the future of water management. Drive innovation in the delivery of essential infrastructure.
• We are seeking a dynamic and experienced Principal Hydraulic Modeller to join our team and lead the delivery of wastewater projects.

Technical

Responsibilities

• Lead a delivery team for a range of wastewater projects with technical guidance to the project team.
• Stakeholder liaison and report preparation.
• Lead in the preparation of design calculations, specifications, datasheets and the technical content of contracts.
• Approve designs and ensure technical governance and QA within the team.
• Financial management of projects to ensure delivery within budget.
• Resolve complex design issues and promote continuous improvement of standards and ways of working.
• Research and apply industry best practices to provide innovative standardisation, including promotion of digital design concepts.
• Collaborate with the supply chain and delivery partners to drive efficiency.
• May have line manager responsibilities for some junior engineers.
• Coach and mentor junior staff; work with senior managers to ensure staff engagement.

Qualifications

• MEng/BEng/BSc or HNC in an Engineering, Environmental or numerate science related subject.
• Chartered Engineer of an appropriate Engineering/Scientific Institution.

Experience

• Proven and demonstrable technical background in delivering wastewater hydraulic modelling projects within the UK Water Industry to time and budget in compliance with quality, safety and environmental procedures.
• Thorough knowledge of the engineering theory and principles behind wastewater hydraulic modelling.
• Experience as a Principal/Senior Hydraulic Modeller (or equivalent) with extensive knowledge of solution development and design.

Skills

• Full driving licence.
• Competent in MS Office; experience with relevant IT design tools.
• Very good communication and presentation skills; ability to present technical ideas to technical and non-technical audiences.
• Ability to work on own initiative and resolve complex engineering problems.
• Collaborative mindset; able to work with other teams and areas to achieve business aims.
• Strong problem-solving, decision-making, and training/mentoring orientation.

Privacy and eligibility

All applicants must be eligible to live and work in the UK. You will need to provide evidence of eligibility (e.g. a passport or long birth certificate and proof of NI) and current proof of address (dated within the last 3 months) as part of the recruitment process. If you do not meet these criteria, your application will not be considered.

Seniority level

• Mid-Senior level

Employment type

• Full-time

Job function

• Design, Art/Creative, and Information Technology

Industries

• Utilities

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