Experienced Hydraulic Modeller – Treatment Works Hydraulics & Surge​/Transient Analysis

Competitive salary depending on skills and experience

Permanent / 37 hours per week / Full-time (with flexibility for part-time working)

Base location either in Peterborough, Lincoln, Colchester or Norwich (depending on your location). Hybrid – 2 days in the office.

We are seeking an experienced hydraulic modeller to join our Chief Engineering Office, someone who brings strong capability in either treatment works hydraulics or surge/transient analysis. Whichever discipline is your strength, we will provide training and mentoring to develop you into a genuine dual‑discipline specialist.

You will deliver high-quality hydraulic modelling that directly shapes how our water and wastewater treatment assets are designed and operated. Depending on your background, this will include some or all of the following:

• Treatment works hydraulics: flow distribution analysis, headloss calculations, hydraulic control strategies and process optimisation, typically using tools such as HADES or equivalent software.
• Surge and transient analysis: supporting capital scheme delivery and operational decision‑making with tools including WANDA, Vari Sim, or similar platforms.

Across both disciplines, you will build and validate robust models, translate complex outputs into clear risk‑based recommendations, and play an active role in assuring modelling quality and growing capability across the team.

This is a rare opportunity to join a leading‑edge technical team shaping the future of water modelling across the business and the wider industry. You will build deep expertise across both treatment hydraulics and surge modelling, with structured mentoring and targeted technical training. You will have real influence on engineering and operational decisions, with a clear route toward a broader technical leadership.

You will have solid, hands‑on modelling experience in at least one of the two disciplines, with the confidence to lead technical studies, navigate operational constraints, and communicate findings to engineering and non‑engineering audiences. Experience with HADES, WANDA, Vari Sim or similar tools is a plus, but what matters most is your strong hydraulic fundamentals and your genuine commitment to continuous professional development.

• Extensive experience in a relevant modelling discipline, delivering complex, system‑based and strategic projects across the asset management lifecycle.
• Proven leadership in model build, calibration, verification, and validation, with a deep understanding of data quality, uncertainty, and ambiguity.
• Experience writing and embedding technical specifications, standards, policies, and procedures.
• Strong background in data analysis, interpolation, hypothesis development, and evidence‑based decision‑making.
• Demonstrated success applying systems thinking across assets, people, process, commercial, and technology considerations.
• Experience balancing multi‑objective criteria such as risk, performance, efficiency, and cost.
• Proven track record of mentoring, coaching, and training technical colleagues, with measurable outcomes.
• Experience initiating and leading technical discussions, change, and continuous improvement.
• Ability to manage and prioritise workload in a complex, fast‑moving environment, including influencing others’ time and activities.
• Experience working effectively in virtual, agile, and collaborative delivery models.

• Degree qualified in a relevant discipline or equivalent demonstrable experience.
• Chartered or working towards chartership/accreditation with a recognised professional body.
• Deep understanding of engineering principles relevant to the discipline (e.g. hydraulics, treatment processes, demand analysis, system operation).
• Strong knowledge of industry context, policies, frameworks, and initiatives, including interpreting their impact on modelling priorities.
• Understanding of asset surveys, data collection techniques, data uncertainty, and associated health and safety considerations.
• High level of personal accountability, with a strong commitment to results and people.

• Private healthcare and physiotherapy.
• 24‑hour Virtual GP service for you and your household.
• 26 days annual leave (rising with service).
• Competitive pension scheme – Anglian Water double‑matches your contributions up to 6% (up to 18% combined).
• Bonus scheme.
• Flexible benefits and working culture.
• Life Assurance (8× salary) and Personal Accident cover.
• Enhanced family leave policies.
• Great discounts and perks.

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