Expert Formatting and Conversion of Docx to Epub and Kindle for Digital Publishing

I need a skilled professional to format a docx document and convert it into epub and kindle (mobi/azw3) formats, ready for digital publication. The project requires careful attention to detail to ensure proper layout, typography, and image integration across different e-readers and devices. The final files must be clean, validated, and optimized for a seamless reading experience. Please outline your experience with ebook formatting standards and your process for quality assurance.