Associate Flood Modeller

As an Associate Flood Modeller, you will provide technical leadership for a specialist flood modelling team, driving excellence across a diverse portfolio of projects. You will oversee the development, execution and review of hydraulic and hydrological models, ensuring all outputs meet rigorous quality standards and regulatory requirements. Working closely with project managers and clients, you will guide project delivery from concept through to submission, ensuring compliance with Environment Agency standards and UK best practice. Alongside technical delivery, you will mentor team members, contribute to business growth, and promote continuous improvement across flood risk services.,

• Lead complex hydraulic and hydrological modelling using Flood Modeller, TUFLOW, ESTRY and InfoWorks ICM
• Apply FEH methodologies, rainfall-runoff modelling and flood frequency analysis
• Interpret modelling outputs to deliver clear, actionable insights
Planning & Regulatory Knowledge
• Ensure compliance with Environment Agency standards and UK flood risk policy
• Prepare and review models for regulatory submission
• Integrate planning requirements into technical delivery
Quality Assurance & Governance
• Implement robust QA/QC processes across all modelling activities
• Review and sign off complex models, data inputs and technical reports
• Maintain high standards of accuracy, consistency and auditability
Leadership & Collaboration
• Mentor and develop junior and mid-level modellers
• Collaborate with multidisciplinary teams and project managers
• Support business development, including input to fee proposals
Problem Solving & Delivery
• Apply critical thinking to complex flood risk challenges
• Manage multiple projects, ensuring timely and on-budget delivery
• Communicate technical concepts clearly to varied audiences, This is a full-time role within a collaborative, growing team, with flexible hybrid working available. You can expect a blend of office and home working , alongside travel for site visits and client meetings. Flexible working patterns are supported to help balance project demands and personal commitments.
  
  Degree-qualified in a relevant discipline with significant experience in flood modelling and technical leadership. Strong expertise in industry-standard software and UK hydrological methods is essential. Chartered status (CIWEM or equivalent) is preferred. Proven experience in regulatory submissions, client engagement and team development is expected. A full UK driving licence and willingness to obtain security clearance are required.
  
  Tetra Tech is a leading provider of consulting and engineering services working across the full project lifecycle worldwide. We have a wide range of expertise across our teams, providing a global support network with a personalised approach to client relationships to better understand where we can add value. We provide a collaborative environment that supports individual performance, innovation, and creativity.
We support public and private sector clients on local, national, and international projects to deliver sustainable and resilient solutions. Our operations in the UK, Ireland, and the Netherlands include more than 6,000 employees who are Leading with Science® to solve our clients' most complex problems. In alignment with the Equality Act 2010, we will make reasonable adjustments to support candidates and employees requiring additional arrangements. This could include adaptations to work schedules, training approaches, or the physical workspace. Please inform us if you need any accommodations during the recruitment process or in your day-to-day role