I’m launching a web-based platform dedicated to large-scale SMS marketing. The system must comfortably handle well over 100,000 outbound texts each month without delays or carrier blocks, so architecture and throughput are top priorities. Core campaign features I need from day one: • Message scheduling that lets me queue sends by date, and audience segment. • Real-time and historical analytics—delivery, open and conversion tracking presented in clear charts and exportable CSV. • Personalization options such as merge tags for names, unique links, or coupon codes pulled from a CSV or simple CRM table. A clean web dashboard is essential, but I also want an API endpoint so the platform can plug into future tools. I’m open to Twilio, Vonage, or similar gateways—whichever you can prove is the most cost-effective at this traffic level. Deliverable is a fully deployed, tested site (frontend + backend + database) on my already purchased cloud host, with documentation that lets me add users, load contacts, create a campaign, and review performance without touching code. If you’ve built high-volume SMS systems before and can show examples, let’s talk timelines and milestones.