Skip to content

Our Team

Digital
Our small team of specialist practitioners brings a wealth of experience and local knowledge.
Pi7_Tapiwa Chinowaita 4

Tapiwa Chinowaita

Chief Technology Officer
Tapiwa leads the development and commercialisation of cutting-edge digital platforms focused on enabling responsible sourcing through actionable ESG data.
EXT02302

Calvin Laing

Head of Data and Due Diligence
Calvin is a data and due diligence professional, with more than 15 years of experience leading human rights, social and environmental initiatives across diverse global contexts.
EXT01405

Zandi Moyo

Associate Sustainability Consultant
Zandi has a background in quantitative and qualitative research, contributing to TDi’s analytical research assignments, and to responsible sourcing and data projects, which includes mapping mineral and agricultural supply chains, conducting research on their ESG...
EXT01434

Michael Wittgreffe

Lead Software Engineer
Michael has more than ten years' experience as a software engineer. At TDi he focuses his extensive experience on the development of digital tools, toolkits and online platforms for our clients.
EXT01415

Kyrone James

Full Stack Developer
Kyrone is a dedicated full-stack developer who combines technical expertise with a passion for building impactful solutions. At TDi, Kyrone contributes to creating scalable digital tools that enhance supply chain transparency and support responsible sourcing...
Thabang Ramaano

Thabang Ramaano

Senior Developer
Thabang Ramaano is a full-stack web developer with over a decade of experience delivering scalable, user-focused digital solutions across diverse industries.
95089f23-bf08-4cea-aee7-ae276af24612

George Chakama

Full Stack Developer
George Chakama is a visionary developer dedicated to building meaningful digital experiences across web and mobile platforms.