Peter Rayan

Analytics Consultant @Arcadis

Sheffield, GB

Delivered analytics, machine learning and optimisation projects for major UK water companies and the rail network, leading the development and deployment of predictive models and scenario-based frameworks to support operational and long-term investment decisions.Applied AI/LLM-driven techniques for data cleansing, validation and text classification, improving data quality and reducing manual effort.Applied optimisation and statistical approaches to evaluate model performance and support robust decision-making in complex, real-world environments.Modernised legacy models and transformed spreadsheet-based processes into scalable, production-ready solutions, improving flexibility and turnaround time.Built scalable data pipelines and analytics solutions using Python, SQL, Azure and Microsoft Fabric, leveraging Medallion Lakehouse architecture to enable efficient, cloud-based workflows. Collaborated closely with stakeholders to translate business challenges into practical data solutions, while mentoring junior team members and contributing to delivery in Agile environments.