Senior & Principal Wastewater Modeller

Job Title:

Principal Wastewater Hydraulic Modeller

Salary: £55,000 to £78,000 (dependent on experience)

Location:

Falmer (Brighton) – Hybrid / Home Working with occasional site visits

Type:
Permanent, Full Time (37 hours/week)

Our client is seeking a Principal Wastewater Hydraulic Modeller to lead delivery teams on a range of wastewater projects. The role combines technical leadership, stakeholder management, and innovation to ensure projects are delivered efficiently, safely, and to the highest quality standards.

Our client is a leading UK water company committed to innovation, sustainability, and inclusivity. They actively support flexible working arrangements, professional development, and employee engagement, providing an environment where senior professionals can influence strategic decision-making and drive change across the sector.

• Provide technical guidance and leadership to project teams.
• Liaise with stakeholders and prepare reports, specifications, datasheets, and technical content for contracts.
• Approve designs and ensure adherence to technical governance and QA standards.
• Manage project finances to ensure delivery within budget.
• Resolve complex design issues and challenge company standards to promote continuous improvement.
• Research industry best practice and promote digital design innovation.
• Collaborate with supply chains and delivery partners to drive efficiency.
• Line manage, coach, and mentor junior engineers, ensuring staff engagement and development.

• MEng, BEng, BSc, or HNC in Engineering, Environmental, or numerate science-related subject.
• Chartered Engineer with a relevant Engineering/Scientific Institution.
• Proven experience delivering wastewater hydraulic modelling projects within the UK Water Industry.
• Strong understanding of wastewater engineering theory, hydraulic modelling, and solution development.
• Excellent communication and presentation skills to convey complex technical ideas to both technical and non-technical audiences.
• Full driving licence and competency in MS Office and relevant IT design tools.
• Strong leadership, problem-solving, and team collaboration skills.

• Competitive salary (£55,000-£78,000) with performance-related bonus
• Pension up to 11% company contribution
• 25 days annual leave + paid volunteering days
• Health cash plan, life assurance (4x salary), and digital GP service
• Flexible working, including hybrid options
• Salary sacrifice electric car scheme
• Occupational health and study support for job-related qualifications
• Cycle to work scheme, free parking, and access to local amenities

• Right to work in the UK
• Relevant engineering or science qualifications

• Lead strategic wastewater modelling projects
• Influence company-wide technical standards and innovation
• Mentor and develop junior engineers
• Engage in digitalisation and standardisation initiatives

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.