Magento E-Commerce Site Build

I need a full-featured e-commerce website built on Magento. The core goal is to launch an online store that’s fast, secure, and easy for me to manage day-to-day.

Here’s what I’m looking for:
• Clean, responsive Magento theme customized to match my brand’s colors and style
• Setup of product catalog (I will supply data in CSV) with layered navigation, search, and category pages
• Integration with major payment gateways and shipping carriers relevant to the US market
• Basic SEO settings, Google Analytics, and sitemap generation configured from the start
• Checkout flow optimized for conversions, including guest checkout and cart abandonment email triggers
• Admin area configured so I can easily add products, run promotions, and view reports
• Launch support: migrate the site from staging to my live domain and verify everything works

If you’ve built Magento stores before, please share two links and a brief note on the extensions or custom code you implemented. A concise timeline and any theme or extension recommendations will help me choose quickly.