•  Farming and Homesteading
• Climate change action
• Making software more resource efficient 

Geerd-Dietger Hoffmann is the Chief Technology Officer (CTO) at Green Coding Solutions GmbH, a green-tech company specializing in digital sustainability transformation based in Berlin. The renowned IT expert has extensive experience in sustainable software development, which he has gained in leadership positions (CTO) at Climate Farmers and Ecoworks, particularly in areas such as team building, programming, IoT, and cloud solutions. As CTO at TeleoMed and eHealth Africa, he successfully brought his passion for health technology to non-profit organizations. As a founder and CEO/ CTO of his own enterprises, Hoffmann has been instrumental in creating innovative solutions. His education at University College London and Bournemouth University, combined with his involvement in significant projects at CERN and IBM, underscores his qualifications as a top executive and engineer

• HotCarbon 2024 - Improving Carbon Emissions of Federated Large Language Model Inference through Classification of Task-Specificity
• Dagstuhl - PEACHES24 - Optimizing Green Coding Practices: Measurement Accuracy and Best Practices
• LOCO 2024 - Green Metrics Tool: Measuring for fun and profit.
• Dena 2024 - Green Coding: Mit stromsparender Software zu einer nachhaltigeren Digitalisierung
• GREENS’25 - PowerLetrics: An Open-Source Framework for Power and Energy Metrics for Linux
•  ICT4S 25 - Sustainable Software Development: The State of Green Coding in Germany