Get the Edge! | Management Tools for Poultry Farmers

Meet the Team

Meet The Leading Edge Team

We are a team of qualified poultry scientists with over 60 years of joint on-farm practical and industry experience.

Shelley Johnston

PhD Agric, Pr. Sci. Nat. (114932)

Shelley holds a PhD in Agriculture in the discipline of Animal Science and Poultry Science. She has worked for an animal feeds manufacturer and as a technical services manager for a national integrated egg producer. Shelley is the founder of Leading Edge Poultry Software.

Linnet Crow

MSc Agric, Pr. Sci. Nat. (400047/07)

Linnet completed an MSc Agric at UKZN, and has worked as a technical advisor for a feed mill and as a nutritional and management consultant.  She has worked part-time for Leading Edge since 2014. Linnet also manages a pullet rearing and egg production unit in the KZN Midlands.

Justine de Winnaar

MSc Agric, Pr. Sci. Nat. (400275/13)

Justine has an MSc Agric, majoring in Poultry Science.  Following a part-time lecturing post at the University, Justine managed a broiler breeder operation for practical experience.  She then moved to the feed industry as a technical advisor until taking on the position of an Operational Nutritionist.  Justine joined Leading Edge in 2015.

IT Support

Mark Wiercx
BSc Agric (Hons) and Diploma in Datametrics

Mark has been in various development roles since 1992, from Information Systems Manager to Developer Team Lead to Consultant, in industries from agriculture to yacht building.

Mark enjoys the creative aspect of development, and his background in agriculture coupled with his wealth of experience in IT make him a welcome addition to the Leading Edge team. 

In addition to development of EGGonomics, Mark co-manages our cloud server and provides technical support.