Our Water consultancy client are seeking a Principal Modeller to join their Water team based in Leeds on a permanent or freelance basis. The role would ideally require 3 days in our clients' Leeds office with applications from candidates based near Manchester, Peterborough and Bristol offices also of interest. Clean or wastewater backgrounds will be considered. Joining the Urban Drainage Modelling Team will give you the opportunity to contribute to a range of transformative projects. From conducting comprehensive feasibility studies, precise model building and verification, to undertaking surface water management plans and producing development impact assessments. You will leverage state-of-the-art design software and advanced techniques to create groundbreaking solutions that meet end clients' needs. Working within our Urban Drainage Modelling Team you will take the lead in delivering a programme of modelling work primarily being responsible for technical delivery but also managing cost and programme. Additionally, you will take responsibility for leading a team of junior modellers. Responsibilities Working within agreed deliverables, key milestones, project methodology, quality assurance and control strategy. Leading project delivery tasks which will include engagement with clients' technical teams. Providing technical guidance, support and training to less experienced colleagues The opportunity to develop modelling processes and create innovative modelling tools The opportunity to work on a range of different types of modelling projects for clients in both the public and private sector. Skills/experience/qualifications Experience in the model build and verification of integrated catchment models and/or solution development using Infoworks ICM. Experience of water quality modelling and/or undertaking UPM studies would be advantageous. Experience of GIS (e.g. ArcGIS or Mapinfo) and Infoworks ICM hydraulic modelling software is essential. A track record in mentoring team members less experienced in this field. Experience of managing projects and acting as technical discipline lead on urban drainage modelling projects is advantageous. Experience in managing modelling teams also from a commercial/financial perspective would be beneficial An understanding of the market and an interest in business development to help expanding and diversify our range of clients would be also welcomed. For the Principal role you will ideally be chartered with an appropriate institute (eg ICE or CIWEM) or close to achieving chartered status. Benefits Salary dependant on experience (applications from Seniors and Principals welcomed) - £55-70k - freelance may be also be considered 25 days holiday plus bank holidays Flexible and hybrid working 5 hour working week Pension Life assurance Professional membership support Employee discounts Discretionary annual bonus Working for a top ten civil engineering firm (recognised by New Civil Engineer, (NCE). Inclusive, friendly and flexible working environment where colleagues are encouraged to grow and develop