Expert Email Template Developer - Transactional Emails (Dark/Light Mode)

We need an experienced email template developer to convert an existing HTML design file into a production-ready, cross-client compatible email template. The Task We have a Claude-generated HTML file serving as the design reference for a transactional email (e.g. Signup Confirmation). Screenshot of it attached. Your job is to turn it into clean, robust HTML that renders correctly across all major email clients and devices. Requirements - Proven expertise in HTML email development (transactional emails) - Full cross-client compatibility: Gmail, Outlook, Apple Mail, mobile clients, and more - Dark mode & light mode support - Clean, maintainable code - no unnecessary bloat - Ability to start immediately, with delivery expected early next week latest What You'll Receive - An HTML file as the design reference. You deliver the final production-ready email template. Project Type Fixed price only - please submit your offer accordingly. About Us We are a SaaS company with ongoing needs for email template development. This is an initial task, but we're looking for a reliable developer we can work with on a continuous basis.