Ongoing XSLT development

From time to time, I have specific XSL transformations that I need doing. The transformations can be somewhat complex at times and are described in an Excel spreadsheet that lists the one-to-one mappings, derived mappings, and gives an overview of the relationship between the source data and the destination data. Time is of the essence for each of these transformations, so we are looking for an expert who lives and breathes XSLT, XQuery and XML - JSON would be nice but not necessary. In addition, the person must have a very good understanding of the English language, to understand the descriptions and details provided in the spreadsheet. If you have extensive experience or outstanding knowledge/understanding of XSLT, XQuery and XML, please get in touch, and be prepared to demonstrate your skills by explaining what you think is required in the attached spreadsheet and showing in interview or by other evidence why you are the best person for this opportunity. I look forward to hearing from you, the expert. Regards and God bless.