Senior/Principal Consultant- Sustainable Data Analysts
Advisory Employment Type: Permanent - Full Time
Anthesis is seeking a Sustainability Data Expert to join our Circularity and Value Chain Transformation team. (This role is critical in helping clients transform complex sustainability, packaging, product, waste, and regulatory data into meaningful insights that support compliance, business decision-making, and sustainability outcomes.
As a senior technical specialist, you will combine sustainability expertise with advanced analytical capabilities to manage, analyse, and interpret large and complex datasets.
You will develop robust methodologies, perform complex calculations, oversee data quality and assurance processes, and support clients in understanding the story behind their data.
Working closely with clients and project teams, you will ensure analytical outputs are accurate, auditable, and defensible while communicating complex findings in a clear, concise, and actionable manner. Lead the analysis of large, complex sustainability datasets, delivering robust,



high-quality outputs that support client decision-making and regulatory compliance.
Design and execute complex calculations, methodologies, and analytical approaches tailored to specific client needs, using tools such as Alteryx, Excel, Power Query, Power BI, and other analytical platforms.
Manage data collection, cleansing, validation, transformation, and interpretation processes to ensure data accuracy, consistency, and reliability.
Develop and maintain transparent methodologies, assumptions, calculation logic, and audit trails that support accurate reporting and regulatory submissions.
Identify data gaps, inconsistencies, and quality issues, implementing practical solutions and clearly documenting assumptions where data limitations exist.
Support clients with compliance and reporting requirements related to EPR, PPWR, and other sustainability regulations, ensuring analytical outputs are robust, traceab

📌 Senior/Principal Consultant- Sustainable Data Analysts (Madrid)
🏢 Anthesis Group
📍 Madrid