Hydraulic Modeller

Job Title: Senior Hydraulic Modeller
Salary: £40 – £60 per hour (dependent on experience)
Location: Cardiff (Remote or Bristol-based also considered)
Type: Contract (6-12 months), Hybrid or Remote

About the Role:

Our client is seeking a Senior Hydraulic Modeller to join their growing and dynamic water team. You’ll be delivering a range of flood risk and water quality modelling activities across major UK infrastructure and environmental projects. This includes working on the Welsh Water AMP8 programme and other nationally significant frameworks.

The ideal candidate will bring senior-level expertise to the team, supporting junior modellers and contributing to both technical excellence and collaborative project delivery.

About the Client:

Our client is a globally recognised, multidisciplinary consultancy known for delivering innovative, sustainable solutions across environmental, engineering, and infrastructure projects. With an extensive project pipeline and newly awarded frameworks, they are expanding their flood risk and hydraulic modelling capabilities to meet growing demand.

Key Responsibilities:

• Deliver flood hydraulic modelling and analysis for catchment and urban drainage systems
• Use industry-standard tools such as Flood Modeller, ESTRY, and TUFLOW
• Lead and support junior modellers, offering technical mentorship
• Contribute to modelling reports and support business case development for FCERM projects
• Collaborate with multidisciplinary teams and stakeholders on large-scale design projects
• Input into nature-based solution strategies and low-carbon innovation

What Our Client is Looking For:

Essential:

• Degree (BSc or MSc) in Civil Engineering, Geography, or a related field
• Strong experience with hydraulic modelling software (Flood Modeller, ESTRY, TUFLOW)
• Experience with GIS tools (ArcGIS or QGIS)
• Experience mentoring junior team members
• Skilled in technical report writing

Desirable:

• Experience with FCERM projects and nature-based solution delivery
• Experience developing business cases
• Coding or digital skills (e.g. Python, FME, Excel)
• Strong communication skills with experience in presenting technical findings

What Our Client Offers:

• Flexible working (remote, hybrid, or office-based – Cardiff or Bristol)
• A high-performing, collaborative team with national reach
• Opportunity to work on long-term frameworks (Welsh Water, Environment Agency)
• Supportive environment with learning and development opportunities
• Initial 6-month contract with extension or 12-month terms available upfront

Eligibility:

• Must be based in the UK
• Able to work 37.5 hours per week
• Right to work in the UK required (no sponsorship available)

Opportunity for Growth:

This contract offers significant scope for extension or potential transition into a longer-term role, subject to project demand. With a diverse and inclusive environment and access to industry-leading expertise, it’s a fantastic opportunity for a senior modeller ready to take the next step.

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.