Principal, Stamp Associates, Professional Viticultural Services. 1999-present.  

Chief Executive Officer and Founder, NovaVine Grapevine Nursery, Santa Rosa, California. 1996-1999. Responsible for all quality control and production operations. Established joint venture with Vivai Cooperativi Rauscedo, world's largest grapevine nursery, for import of Italian clones, production technology and know-how.

Chief Operating Officer and Co-founder, Vinifera Grapevine Nursery, Petaluma, California. 1993-1995. Responsible for all quality control and production operations. Established unique green grafting program producing grafted grapevines of exceptional quality.

Director of Grapevine Biotechnology, Agritope, Inc., Beaverton, Oregon. 1989-1993. Established and managed grapevine biotechnology program focused on in vitro and genetic plant improvement, disease elimination, and commercial propagation of elite germplasm.

Post-doctoral Research Scholar, Department of Viticulture and Enology, University of California, Davis, California. 1985-1989. Grapevine propagation, gene transfer, and improvement.

Ph.D. Plant Biology, 1984, University of Birmingham, Birmingham, UK. Specialized in plant propagation and improvement.

M.Sc. Conservation and Utilization of Plant Genetic Resources, 1978, University of Birmingham, Birmingham, UK.

B.Sc. Biological Sciences, 1977, University of Birmingham, Birmingham, UK.