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Meet The Team

Shelley Johnston

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

Shelley holds a PhD in Agriculture in the discipline of Animal Science and Poultry Science, having been supervised by Prof. Rob Gous at UKZN. She has worked for an animal feeds manufacturer and as a technical services manager for a national integrated egg producer. Shelley is a training consultant and board member at the KZN Poultry Institute and is the founder of Leading Edge Poultry Software.

Linnet-CrowLinnet 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 November 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, from UKZN, majoring in Poultry Science under the supervision of Prof. Rob Gous.  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 July 2015.

 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.

 Werner Kotze

Werner has more than a decade of experience in the IT industry.  His knowledge of Microsoft SQL Server has proved invaluable to the business.  Werner also co-manages our cloud server and provides technical support.  He has been an integral part of our team since 2014.

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