Principal Hydrologist

b Overview /b p In this role you will lead hydrological assessments and provide technical direction across UK and international water projects. You’ll shape flood risk strategies, infrastructure planning, and environmental permitting within a collaborative, multidisciplinary team. The position blends technical excellence with client engagement and mentorship, offering opportunities to influence major frameworks across transport, energy, and water sectors. You’ll work in a flexible hybrid setup and contribute to sustainable, community-focused outcomes. /p b Pay / Benefits /b ul li hybrid work model /li li career development opportunities /li li AECOM University /li li volunteering days /li li flexible working arrangements /li li competitive salary and benefits /li /ul b Responsibilities /b ul li Lead hydrological assessments to support flood risk appraisals, infrastructure design, catchment strategies, and environmental impact assessments /li li Provide technical direction on rainfall-runoff modelling, river flow estimation, climate change allowances, and catchment analysis /li li Oversee and review hydrological modelling outputs for quality, accuracy, and regulatory compliance /li li Act as technical lead on major frameworks and multidisciplinary projects across transport, energy, water, and development sectors /li li Advise clients on flood risk policy, drainage strategy, abstraction licensing, and environmental permitting requirements /li li Mentor and develop junior hydrologists, fostering technical excellence and knowledge sharing /li li Support business development activities, including bid preparation and client relationship management /li /ul b Key requirements /b ul li Degree (BSc/BEng/MSc) in Hydrology, Civil Engineering, Environmental Science, Geography, or related discipline /li li Extensive experience delivering hydrological assessments in consultancy or regulatory environments /li li Strong knowledge of UK hydrological guidance (FEH, FEH methods, EA guidance) /li li Experience with hydrological modelling tools and data analysis software /li li Proven ability to lead projects and provide technical oversight /li li Chartered status (CEng, CSci, or CEnv) or working towards chartership /li li Excellent communication skills with clients and stakeholders /li li Self-motivated with the ability to work autonomously in a deadline-driven team environment /li /ul ul li Excellent communication and stakeholder engagement /li li Leadership and mentoring capabilities /li li Collaborative mindset and teamwork /li li Rainfall-runoff modelling /li li River flow estimation /li li Climate change allowances /li /ul