At TASK we value our people. If you would like to join us hop on to the “careers page” and apply to advertised vacancies. You can also stay up to date on TASK news by following us on LinkedIn.


Prof. andreas diacon

Andreas Diacon is the Founder of TASK, Chairman of the Board and TASK’s Chief Scientific Officer. He is a trained physician and spent many years in patient care in internal medicine, pulmonology, and the intensive care unit. Prof Diacon is now a full-time clinical researcher focused on advancing novel anti-tuberculosis agents and regimens towards the patients that need them.
Amongst other achievements, Prof Diacon was awarded a Rector’s Award for Outstanding Research at Stellenbosch University, the Swiss TB Research Award and the Scientific Prize from the International Union Against Tuberculosis and Lung Disease for his exceptional contribution towards research. He has more than 200 publications to his name and is Professor Emeritus at Stellenbosch University.
Most recently Prof Diacon has been leading TASK’s effort to establish a branch in Europe.

Johann De Bruyn

Johann de Bruyn, TASK’s Chief Executive Officer, is a Chartered Accountant and completed his MBA through Bradford university in the UK. He has been active in senior leadership across various industries over the past two decades, working with multi-national teams driving transformation and growth. His focus at TASK has been on broadening the company’s value proposition through diversification and change management in a digital era.

Melissa Mitchell

Melissa Mitchell is TASK’s Director of Strategic Projects. She has held various operational and strategic roles at TASK since 2011, which allows her to drive growth through a wealth of broader industry knowledge. Most recently she successfully established TASK Eden, a new business venture in diversified clinical trials in a research naïve region of South Africa. Melissa holds a BSc in Chemistry and an MBA from Stellenbosch University.


Gerben van den Hoogen

Clinical Executive

Riana Stander

Operational Executive

Marilyn Adams

HR Executive

Dr. Veronique de Jager

MBChB, MPH, Medical Executive

Jolize Gerber

Business Development Executive

Science Officer

Dr Caryn Upton

Get in touch

Don’t hesitate to get in touch with us if you have any questions or concerns.

Get in touch

Don’t hesitate to get in touch with us if you have any questions or concerns.