Principal / Senior Hydrologist

Job ID: 42060Reference: 300015754502154Location: London, Greater London, United Kingdom | Exeter, Devon, United Kingdom | Plymouth, Devon, United Kingdom | Birmingham, West Midlands, United Kingdom | Cardiff, Wales, United Kingdom | Warrington, Cheshire, United Kingdom | Manchester, Greater Manchester, United Kingdom | Cambridge, East of England, United Kingdom | Bristol, United Kingdom | Guildford, Surrey, United KingdomDepartment: EngineersBusiness Unit: AUK UK Arcadis (UK) LtdWork Type: On-siteDate Posted: 2026-06-29Arcadis is the world's leading company delivering sustainable design, engineering, and consultancy solutions for natural and built assets.We are more than 36,000 people, in over 70 countries, dedicated to improving quality of life. Everyone has an important role to play. With the power of many curious minds, together we can solve the world’s most complex challenges and deliver more impact together.Role description:Arcadis are involved in some of the UK’s most complex and diverse projects that are technically demanding and offer considerable potential for learning and development. We are currently seeking a Principal/ Senior Hydrologist to join our Water Management division. We lead on the delivery of a variety of schemes and are working closely with UK regulators e.g. the Environment Agency, as well as the UK’s key infrastructure providers (Network Rail, National Highways), Local Government and private developers/investors.Collaborating, learning, thinking proactively and creatively forms the ethos of the team and a fundamental part of your role. Role accountabilities:Setting the technical direction for hydrological studies Estimation of design flood flows and hydrographsProviding technical input into flood risk management and water resource projectsOversee the production of flood risk assessments and Environmental Impact Assessments (Water Resource Chapter)Managing components of projects, taking responsibility for personal time and resource management, coordinating team members and quality assurance Providing input to project teams, leading by example to achieve sector goals and championing quality and innovationAssisting and participating in developing yourself and other team members to their full potentialQualifications & Experience:Degree in an appropriate analytical subject (Civil Engineering, Geography, Environmental Science, Water Resources, Engineering Hydrology)Technical leadership:
Essential: Ability to apply hydrological methodologies (e.g. Flood Estimation Handbook)Essential: Ability to lead and carry out flood risk assessments, Environmental Impact Assessments and preparing Environmental StatementsDesirable: Experience in water resource assessmentsDesirable: Experience of Surface Water Management Plans and SuDS Demonstrable track record in Quality Assurance proceduresCompetent in the use of ArcPro and QGISReport writingExperience of team and line managementWhy Arcadis?We can only achieve our goals when everyone is empowered to be their best. We believe everyone's contribution matters. It’s why we are pioneering a skills-based approach, where you can harness your unique experience and expertise to carve your career path and maximize the impact we can make together.You’ll do meaningful work, and no matter what role, you’ll be helping to deliver sustainable solutions for a more prosperous planet. Make your mark, on your career, your colleagues, your clients, your life and the world around you.Together, we can create a lasting legacy.Join Arcadis. Create a Legacy.Our Commitment to Equality, Diversity, Inclusion & BelongingWe want you to be able to bring your best self to work every day which is why we take equality and inclusion seriously and hold ourselves to account for our actions. Our ambition is to be an employer of choice and provide a great place to work for all our people. We believe that by working together diverse people with different experiences develop the most innovative ideas. Equality, diversity and inclusion is at the heart of how we improve quality of life and we work closely with our people across six ED&I Workstreams: Age, Disability, Faith, Gender, LGBT+ and Race. A diverse and skilled workforce is essential to our success.#LI-TW1