Job Title:Senior / Principal Water Quality AnalystSalary: 45,000- 65,000 (dependent on experience)Location: Wallingford, Coleshill, Newcastle or Haywards HeathType: Permanent Full-time or Part-time HybridAbout the Role:Our client is seeking an experienced Senior / Principal Water Quality Analyst to lead and review technical water quality work across a strong portfolio of Water Cycle Studies, AMP8 water quality modelling frameworks, and whole-catchment nutrient pollution projects.The role will focus on technical leadership, quality assurance, client engagement, and work-winning, with opportunities to expand into water resources modelling and strategic planning for water companies, agriculture, and the energy sector.About the Client:Our client is an award-winning, independent, employee-owned environmental and engineering consultancy. They have a long-established reputation for delivering Water Cycle Studies, water quality modelling, and catchment-based solutions for local authorities, water companies, and national stakeholders.They operate across the UK and internationally and place strong emphasis on innovation, sustainability, resilience, and long-term investment in people through continuous professional development.Key Responsibilities:Lead and review Water Cycle Studies and associated client reportsReview UPM water quality models built using MIKE+ for AMP8 frameworksReview SIMCAT catchment models and modelling outputsReview discharge modelling using the Environment Agency''