Messaging Strategy and Guide for Tech Startup

Looking for an experienced copywriter to develop and Messaging Guide for a tech startup. The business model overlaps different industries, so messaging strategy will be somewhat complex and nuanced. The project will incorporate industry research and competitive analysis (though some of this will be provided as a starting point). The messaging guide/strategy should incorporate key differentiators, company descriptors, SEO, Paid Search keywords, and should drive content for blogs and web copy and future marketing campaigns. Experience with or solid understanding of non-profit industry and e-commerce platforms is essential.